Page 1 Service Reference Guide HP Compaq dc7900 Business PC...
Page 2 © Copyright 2008 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and other countries. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services.
Page 3: About This Book
About This Book WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information.
Page 4 About This Book...
Page 5: Table Of Contents
Table of contents 1 Installing and Customizing the Software Installing the Operating System ......................1 Installing or Upgrading Device Drivers ....................1 HP Backup and Recovery Manager ..................... 2 2 Computer Setup (F10) Utility Computer Setup (F10) Utilities ......................3 Using Computer Setup (F10) Utilities ..................
Page 6 HP Client Automation Starter and Standard Editions ............27 HP Client Automation Enterprise Edition ................28 HP Client Manager from Symantec ................... 28 Altiris Client Management Suite ..................29 HP Client Catalog for Microsoft System Center & SMS Products ........29 HP Backup and Recovery Manager ..................
Page 7 5 Serial and Parallel ATA Drive Guidelines and Features SATA Hard Drives ..........................51 SATA Hard Drive Cables ........................52 SATA Data Cable ......................52 SATA Power Cable ......................52 PATA Device Information ........................53 ATA SMART Drives ..........................53 Hard Drive Capacities ........................
Page 8 Installing Additional Memory ......................75 DIMMs ..........................75 DDR2-SDRAM DIMMs ...................... 75 Populating DIMM Sockets ....................76 Installing DIMMs ........................ 77 Expansion Cards ..........................79 Drives ..............................83 System Board Drive Connections ..................85 Drive Positions ........................86 Removing a Drive from a Drive Bay .................. 87 Installing a 5.25-inch or 3.5-inch Drive into an External Drive Bay ........
Page 9 Cable Management .......................... 137 Cable Connections ........................... 138 Drives ............................... 139 Drive Positions ......................... 139 Installing and Removing Drives ..................140 System Board Drive Connections ..............142 Removing an Optical Drive ................143 Installing an Optical Drive into the 5.25-inch Drive Bay ........144 Removing an External 3.5-inch Drive ..............
Page 10 Installing the New Optical Drive ..................193 Optical Drive Connector ........................193 Hard Drive ............................195 Hard Drive Cage ..........................199 Port Cover ............................200 Front Fan ............................201 Speaker ............................202 Rear Fan ............................203 Heatsink ............................204 Processor ............................205 System Board ...........................
Page 11 Interpreting POST Diagnostic Front Panel LEDs and Audible Codes ..........233 Appendix D Troubleshooting Without Diagnostics Safety and Comfort .......................... 237 Before You Call for Technical Support ..................... 237 Helpful Hints ............................. 238 Solving General Problems ........................ 240 Solving Power Problems ........................243 Solving Diskette Problems .......................
Page 13: Installing And Customizing The Software
Installing and Customizing the Software NOTE: If the computer was shipped with Windows Vista loaded, you will be prompted to register the computer with HP Total Care before installing the operating system. You will see a brief movie followed by an online registration form. Fill out the form, click the Begin button, and follow the instructions on the screen.
Page 14: Hp Backup And Recovery Manager
HP Backup and Recovery Manager The HP Backup and Recovery Manager is an easy-to-use, versatile application that allows you to back up and recover the primary hard drive on the PC. The application works within Windows to create backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually.
Page 15: Computer Setup (F10) Utility
Computer Setup (F10) Utility Computer Setup (F10) Utilities Use Computer Setup (F10) Utility to do the following: ● Change factory default settings. ● Set the system date and time. ● Set, view, change, or verify the system configuration, including settings for processor, graphics, memory, audio, storage, communications, and input devices.
Page 16: Using Computer Setup (F10) Utilities
● Solve system configuration errors detected but not automatically fixed during the Power-On Self- Test (POST). ● Replicate the system setup by saving system configuration information on diskette and restoring it on one or more computers. ● Execute self-tests on a specified ATA hard drive (when supported by drive). ●...
Page 17: Computer Setup-File
Computer Setup—File NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-2 Computer Setup—File Option Description System Information Lists: ● Product name ● SKU number (some models) ● Processor type/speed/stepping ● Cache size (L1/L2) (dual core processors have this listed twice) ●...
Page 18: Computer Setup-Storage
Computer Setup—Storage NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-3 Computer Setup—Storage Option Description Device Configuration Lists all installed BIOS-controlled storage devices. When a device is selected, detailed information and options are displayed. The following options may be presented: Diskette Type (Legacy Diskettes only) Identifies the highest capacity media type accepted by the diskette drive.
Page 19 (blue screen). RAID volumes may become corrupted if they are booted to after disabling RAID. Refer to the Advanced Host Controller Interface (AHCI) and Redundant Array of Independent Disks (RAID) on HP Compaq dc7900 Business PCs white paper http://www.hp.com for more information.
Page 20: Computer Setup-Security
Table 2-3 Computer Setup—Storage (continued) DPS Self-Test Allows you to execute self-tests on ATA hard drives capable of performing the Drive Protection System (DPS) self-tests. NOTE: This selection will only appear when at least one drive capable of performing the DPS self- tests is attached to the system.
Page 21 Table 2-4 Computer Setup—Security (continued) See the Desktop Management Guide for more information. Smart Cover (some Allows you to: models) ● Lock/unlock the Cover Lock. ● Set the Cover Removal Sensor to Disable/Notify User/Setup Password. NOTE: Notify User alerts the user that the sensor has detected that the cover has been removed.
Page 22 Table 2-4 Computer Setup—Security (continued) ◦ USB Port 11 ◦ USB Port 12 ● Internal USB Ports ◦ USB Port 1 ◦ USB Port 2 Network Service Boot Enables/disables the computer’s ability to boot from an operating system installed on a network server.
Page 23 Table 2-4 Computer Setup—Security (continued) ● Reset to Factory Settings (some models) (Do not reset/Reset) - Resetting to factory defaults will erase all security keys. Changing this setting requires turning the computer off and then back on. CAUTION: The embedded security device is a critical component of many security schemes. Erasing the security keys will prevent access to data protected by the Embedded Security Device.
Page 24: Computer Setup-Power
Computer Setup—Power NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-5 Computer Setup—Power Option Description ● OS Power Runtime Power Management— Enable/Disable. Allows certain operating systems to reduce Management processor voltage and frequency when the current software load does not require the full capabilities of the processor.
Page 25: Computer Setup-Advanced
Computer Setup—Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-6 Computer Setup—Advanced (for advanced users) Option Heading Power-On Options Allows you to set: ● POST mode (QuickBoot, Clear Memory, FullBoot, or FullBoot Every x Days). ◦...
Page 26 Table 2-6 Computer Setup—Advanced (for advanced users) (continued) ◦ On—allows you to power on the computer using a power strip switch, if the computer is connected to an electric power strip. ◦ Previous state—causes the computer to power on automatically as soon as power is restored, if it was on when power was lost.
Page 27 Table 2-6 Computer Setup—Advanced (for advanced users) (continued) ● Integrated Video (enable/disable). Allows you to use integrated video and PCI Up Solution video at the same time (available on some models only). NOTE: After Integrated Video is enabled and changes saved, a new menu item appears under Advanced to allow you to select the primary VGA controller video device.
Page 28: Recovering The Configuration Settings
Table 2-6 Computer Setup—Advanced (for advanced users) (continued) administrator. This option determines if the BIOS will keep the local keyboard enabled or disabled for possible local client interaction. If the local keyboard is disabled, all keyboard input is only accepted from the remote source. Recovering the Configuration Settings This method of recovery requires that you first perform the Save to Removable Media command with the Computer Setup (F10) Utility before Restore is needed.
Page 29: Computer Diagnostic Features
Select Create a set of recovery discs (Recommended) and click Next. Follow the instructions in the wizard to create a Recovery Disc Set. Use Windows Explorer to search the Recovery Disc Set for the CD with the compaq\hpdiags directory. While the computer is on, insert the CD into an optical drive on the computer.
Page 30: Survey Tab
Shut down the operating system and turn off the computer. Turn on the computer. The system will boot to the CD. NOTE: If the system does not boot to the CD in the optical drive, you may need to change the boot order in the Computer Setup (F10) utility so that the system attempts to boot to the optical drive before booting to the hard drive.
Page 31: Test Tab
Test Tab The Test tab allows you to choose various parts of the system to test. You can also choose the type of test and testing mode. There are three types of tests to choose from: ● Quick Test—Provides a predetermined script where a sample of each hardware component is exercised and requires no user intervention in either Unattended or Interactive mode except for keyboard and mouse devices.
Page 32: Log Tab
After testing has completed, the Cancel Testing button is replaced with a Retest button. The Retest button will retest the last set of tests executed. This enables you to re-run the set of tests without having to re-enter the data in the Test tab. The Status tab also shows: ●...
Page 33: Saving And Printing Information In Hp Insight Diagnostics
Saving and Printing Information in HP Insight Diagnostics You can save the information displayed in the HP Insight Diagnostics Survey and Log tabs to a diskette or a USB 2.0 flash drive (64MB or higher). You can not save to the hard drive. The system will automatically create an html file that has the same appearance as the information displayed on the screen.
Page 34: Hp Backup And Recovery Manager
HP Backup and Recovery Manager The HP Backup and Recovery Manager is an easy-to-use, versatile application that allows you to back up and recover the primary hard drive on the PC. The application works within Windows to create backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually.
Page 35: Desktop Management
Desktop Management HP Client Management Solutions provides standards-based solutions for managing and controlling desktops, workstations, and notebook PCs in a networked environment. HP pioneered desktop manageability in 1995 with the introduction of the industry’s first fully manageable desktop personal computers. HP is a patent holder of manageability technology. Since then, HP has led an industry-wide effort to develop the standards and infrastructure required to effectively deploy, configure, and manage desktops, workstations, and notebook PCs.
Page 36: Hp Software Agent
The best deployment method depends on your information technology environment and processes. The HP Backup and Recovery system, ROM-based setup, and ACPI hardware provide further assistance with recovery of system software, configuration management and troubleshooting, and power management. NOTE: HP Backup and Recovery Manager on page 2 for information on creating a Recovery Disc Set.
Page 37: Software Updating And Management
(PXE). The Remote System Installation feature is usually used as a system setup and configuration tool and can be used for the following tasks: ● Formatting a hard drive ● Deploying a software image on one or more new PCs ●...
Page 38: Hp Softpaq Download Manager
management applications. Using HP CMI, systems management tools and applications can request in- depth client inventory, receive health status information, and manage system BIOS settings by communicating directly with the client computer, reducing the need for agent or connector software to achieve integration.
Page 39: Hp Protecttools Security Manager
Module (TPM) embedded security chip is installed. HP ProtectTools software modules may be preinstalled, preloaded, or available for download from the HP Web site. For select HP Compaq Desktops, HP ProtectTools is available as an after market option. Visit http://www.hp.com/products/security for more information.
Page 40: Hp Client Automation Enterprise Edition
For more information about the HP Client Automation solutions, visit http://www.hp.com/go/client. HP Client Automation Enterprise Edition HP Client Automation Enterprise Edition is a policy-based solution that enables administrators to inventory, deploy, patch, and continuously manage software and content across heterogeneous client platforms.
Page 41: Altiris Client Management Suite
● Setup and configure TPM security chip ● Centrally schedule client backup and recovery ● Add on support for managing Intel AMT For more information on HP Client Manager from Symantec, visit http://www.hp.com/go/ clientmanager. Altiris Client Management Suite Altiris Client Management Suite is an easy-to-use solution for full life-cycle software management of desktops, notebooks, and workstations.
Page 42: Management Technology
HP Backup and Recovery Manager is preinstalled on the C: drive and creates a Recovery Partition. Recovery Points and file backups can be copied to CD or DVD discs, while all backups can be copied to network or secondary hard disks. HP highly recommends that you create a Recovery Disc Set immediately before using the computer and schedule regular automatic Recovery Point backups.
Page 43 Available management technologies include the following: ● AMT (includes DASH 1.0) ● ASF and AMT may not be configured at the same time, but both are supported. To configure Intel vPro systems for AMT or ASF: Turn on or restart the computer. If you are in Microsoft Windows, click Start > Shut Down > Restart.
Page 44: Verdiem Surveyor
◦ Password Policy ◦ Secure Firmware Update (enable/disable) ◦ Set PRTC ◦ Idle Timeout ● Change Intel ® ME Password (HP highly recommends that this password be changed. The default password is admin.) In order to remotely manage AMT systems, the administrator must use a remote console that supports AMT.
Page 45: Rom Flash
ROM Flash The computer's BIOS is stored in a programmable flash ROM (read only memory). By establishing a setup password in the Computer Setup (F10) Utility, you can protect the ROM from being unintentionally updated or overwritten. This is important to ensure the operating integrity of the computer. Should you need or want to upgrade the BIOS, you may download the latest BIOS images from the HP driver and support page, http://www.hp.com/support/files.
Page 46: Replicating The Setup
When an invalid system BIOS image is detected, the system power LED will blink red 8 times, one blink every second. Simultaneously, the speaker will beep 8 times. If the portion of the system ROM containing the video option ROM image is not corrupt, Boot Block Emergency Recovery Mode will be displayed on the screen.
Page 47: Copying To Multiple Computers
Click File > Replicated Setup > Save to Removable Media. Follow the instructions on the screen to create the configuration diskette or USB flash media device. Turn off the computer to be configured and insert the configuration diskette or USB flash media device.
Page 48: Creating A Bootable Device
Supported devices have a preinstalled image to simplify the process of making them bootable. All HP or Compaq and most other USB flash media devices have this preinstalled image. If the USB flash media device being used does not have this image, use the procedure later in this section (see...
Page 49: Unsupported Usb Flash Media Device
At the A:\ prompt, enter SYS x: where x represents the drive letter noted above. CAUTION: Be sure that you have entered the correct drive letter for the USB flash media device. After the system files have been transferred, SYS will return to the A:\ prompt. Go to step 13. Copy any files you want to keep from your USB flash media device to a temporary directory on another drive (for example, the system's internal hard drive).
Page 50: Dual-State Power Button
As soon as the computer is turned on, press before the computer boots to the operating system to enter Computer Setup. Press Enter to bypass the title screen, if necessary. NOTE: If you do not press at the appropriate time, you must restart the computer and again press before the computer boots to the operating system to access the utility.
Page 51: Hp Web Site Support
To change the power button’s configuration, complete the following steps: Left click on the Start Button, then select Control Panel > Power Options. In the Power Options Properties, select the Advanced tab. In the Power Button section, select Stand by. After configuring the power button to function as a standby button, press the power button to put the system in a very low power state (standby).
Page 52 automatic integration between asset tracking features and these products enables you to choose the management tool that is best suited to the environment and to leverage the investment in existing tools. HP also offers several solutions for controlling access to valuable components and information. HP Embedded Security for ProtectTools, if installed, prevents unauthorized access to data and checks system integrity and authenticates third-party users attempting system access.
Page 53 Table 4-1 Security Features Overview (continued) See the Desktop Management Guide for more information. Smart Cover (some Allows you to: models) ● Lock/unlock the Cover Lock. ● Set the Cover Removal Sensor to Disable/Notify User/Setup Password. NOTE: Notify User alerts the user that the sensor has detected that the cover has been removed.
Page 54 Table 4-1 Security Features Overview (continued) System Security (some Data Execution Prevention (some models) (enable/disable) - Helps prevent operating system models: these options security breaches. are hardware Virtualization Technology (some models) (enable/disable) - Controls the virtualization features of the dependent) processor.
Page 55: Password Security
Table 4-1 Security Features Overview (continued) This feature allows the administrator the flexibility to protect changes to essential setup options, while allowing the user to view system settings and configure nonessential options. The administrator specifies access rights to individual setup options on a case-by-case basis via the Setup Security Level menu.
Page 56: Entering A Power-On Password
Select Security, then Power-On Password and follow the instructions on the screen. Before exiting, click File > Save Changes and Exit. Entering a Power-On Password To enter a power-on password, complete the following steps: Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart the Computer.
Page 57: Deleting A Power-On Or Setup Password
When the key icon appears, type the current password, a slash (/) or alternate delimiter character, the new password, another slash (/) or alternate delimiter character, and the new password again as shown: current password/new password/new password NOTE: Type carefully; for security reasons, the characters you type do not appear on the screen. Press Enter.
Page 58: Clearing Passwords
National Keyboard Delimiter Characters French Norwegian Turkish é French Canadian Polish U.S. English German Portuguese * For Bosnia-Herzegovina, Croatia, Montenegro, Serbia, and Slovenia Clearing Passwords If you forget the password, you cannot access the computer. Refer to the Troubleshooting Guide for instructions on clearing passwords.
Page 59: Drivelock Applications
DriveLock Applications The most practical use of the DriveLock security feature is in a corporate environment. The system administrator would be responsible for configuring the hard drive which would involve, among other things, setting the DriveLock master password and a temporary user password. In the event that the user forgets the user password or the equipment is passed on to another employee, the master password can always be used to reset the user password and regain access to the hard drive.
Page 60: Smart Cover Lock
Select Security > Smart Cover > Cover Removal Sensor, and select the desired security level. Before exiting, click File > Save Changes and Exit. Smart Cover Lock The Smart Cover Lock is a software-controllable cover lock featured on some HP computers. This lock prevents unauthorized access to the internal components.
Page 61: Cable Lock Provision
CAUTION: The Smart Cover FailSafe Key is a specialized tool available from HP. Be prepared; order this key before you need one at an authorized reseller or service provider. To obtain the FailSafe Key, do any one of the following: ●...
Page 62: Thermal Sensor
Thermal Sensor The thermal sensor is a hardware and software feature that tracks the internal temperature of the computer. This feature displays a caution message when the normal range is exceeded, which gives you time to take action before internal components are damaged or data is lost. CAUTION: A high temperature condition can result in damage to the system or data loss.
Page 63: Serial And Parallel Ata Drive Guidelines And Features
Serial and Parallel ATA Drive Guidelines and Features NOTE: Serial ATA = SATA Parallel ATA = PATA SATA Hard Drives Serial ATA Hard Drive Characteristics Number of pins/conductors in data cable Number of pins in power cable Maximum data cable length 39.37 in (100 cm) Data interface voltage differential 400-700 mV...
Page 64: Sata Hard Drive Cables
SATA Hard Drive Cables SATA Data Cable Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s drives. Current HP desktop products ship with SATA 3.0 Gb/s hard drives. SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and never bend it tighter than a 30 mm (1.18 in) radius.
Page 65: Pata Device Information
PATA Device Information The USDT model is the only product that supports a PATA optical drive. No PATA drives are supported on any other model. ATA SMART Drives The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that warns the user or network administrator of an impending failure or crash of the hard drive.
Page 66: Identifying The Chassis, Routine Care, And Disassembly Preparation
Identifying the Chassis, Routine Care, and Disassembly Preparation This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service. CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system board.
Page 67: Small Form Factor (Sff)
Small Form Factor (SFF) Figure 6-2 Small Form Factor chassis Ultra-Slim Desktop (USDT) Figure 6-3 Ultra-Slim Desktop chassis Chassis Designations...
Page 68: Electrostatic Discharge Information
Electrostatic Discharge Information A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work perfectly throughout a normal cycle.
Page 69: Personal Grounding Methods And Equipment
● Avoid contact with pins, leads, or circuitry. ● Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam. Personal Grounding Methods and Equipment Use the following equipment to prevent static electricity damage to equipment: ● Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground cords.
Page 70: Operating Guidelines
● Conductive foam ● Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance ● Static-dissipative table or floor mats with hard tie to ground ● Field service kits ● Static awareness labels ● Wrist straps and footwear straps providing one-megohm +/- 10% resistance ●...
Page 71: Routine Care
Routine Care General Cleaning Safety Precautions Never use solvents or flammable solutions to clean the computer. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. Always unplug the computer when cleaning with liquids or damp cloths.
Page 72: Cleaning The Monitor
● If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is available through many electronic supply outlets. CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are improperly removed or installed, the keyboard may not function properly.
Page 73: Screws
● Diagnostics software ● HP tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or HP tamper- resistant bits (Smart Cover FailSafe Key, PN 166527-002) Screws The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths.
Page 74: Lithium Coin Cell Battery
Lithium Coin Cell Battery The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime of about three years. See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures.
Page 75: Removal And Replacement Procedures Convertible Minitower (Cmt) Chassis
Removal and Replacement Procedures Convertible Minitower (CMT) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. NOTE: Not all features listed in this guide are available on all computers.
Page 76: Unlocking The Smart Cover Lock
Unlocking the Smart Cover Lock NOTE: The Smart Cover Lock is an optional feature included on some models only. The Smart Cover Lock is a software-controllable cover lock, controlled by the setup password. This lock prevents unauthorized access to the internal components. The computer ships with the Smart Cover Lock in the unlocked position.
Page 77 Use the Smart Cover FailSafe Key to remove the two tamper-proof screws that secure the Smart Cover Lock to the chassis. Figure 7-1 Removing the Smart Cover Lock Screws You can now remove the access panel. See Computer Access Panel on page To reattach the Smart Cover Lock, secure the lock in place with the tamper-proof screws.
Page 78: External Security Devices
External Security Devices The following security devices are used to prevent unauthorized access to the internal components of the computer and/or secure the computer to a fixed object. Installing a Security Lock The security locks displayed below and on the following page can be used to secure the computer. Cable Lock Figure 7-2 Installing a Cable Lock...
Page 79: Padlock
Padlock Figure 7-3 Installing a Padlock External Security Devices...
Page 80: Hp Business Pc Security Lock
HP Business PC Security Lock Fasten the security cable by looping it around a stationary object. Figure 7-4 Securing the Cable to a Fixed Object Thread the keyboard and mouse cables through the lock. Figure 7-5 Threading the Keyboard and Mouse Cables Chapter 7 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis...
Page 81 Screw the lock to the chassis using the screw provided. Figure 7-6 Attaching the Lock to the Chassis Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the lock. Use the key provided to disengage the lock. Figure 7-7 Engaging the Lock External Security Devices...
Page 82: Computer Access Panel
Computer Access Panel Prepare the computer for disassembly (Preparation for Disassembly on page Lift up on the access panel handle (1), slide the access panel back about 1.25 cm (1/2 inch), then lift it up and off the unit (2). Figure 7-8 Removing the Computer Access Panel To install the access panel, reverse the removal procedure.
Page 83: Front Bezel
Front Bezel Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Push up on the two release tabs (1), then rotate the front bezel away from the chassis to release it (2).
Page 84: Bezel Blanks
Bezel Blanks Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Remove the front bezel (Front Bezel on page 71). Gently pull the subpanel, with the bezel blanks secured in it, away from the front bezel, then remove the desired bezel blank.
Page 85: Cable Management
Cable Management Always follow good cable management practices when working inside the computer. ● Keep cables away from major heat sources like the heatsink. ● Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them.
Page 86: Cable Connections
Cable Connections System board connectors are color-coded to make it easier to find the proper connection. System Board Connections System Board Connector Connector Name Connector Color Description White Power supply, 24-pin PWRCPU White Power supply, 4-pin FLOPPY Black Diskette drive CHFAN White Front chassis fan...
Page 87: Installing Additional Memory
Installing Additional Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs). DIMMs The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.
Page 88: Populating Dimm Sockets
Populating DIMM Sockets There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory channel A. Sockets DIMM3 and DIMM4 operate in memory channel B. Figure 7-12 DIMM Socket Locations Table 7-1...
Page 89: Installing Dimms
and the remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the largest amount of memory is spread between the two channels. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. For example, if you are populating the sockets with one 1-GB DIMM, and three 512-MB DIMMs, Channel A should be populated with the 1-GB DIMM and one 512-MB DIMM, and Channel B should be populated with the two 512-MB DIMMs.
Page 90 Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Figure 7-13 Installing a DIMM NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket.
Page 91: Expansion Cards
Expansion Cards The computer has three standard full-height PCI expansion slots, one PCI Express x1 expansion slot, one PCI Express x16 expansion slot, and one PCI Express x16 expansion slot that is downshifted to a x4 slot. Figure 7-14 Expansion Slot Locations Table 7-2 Expansion Slot Locations Item...
Page 92 Press straight down on the two green thumb tabs inside the chassis (1) and rotate the expansion card retention latch up (2). Figure 7-15 Opening the Expansion Slot Retainer Before installing an expansion card, remove the expansion slot cover or the existing expansion card.
Page 93 If you are removing a standard PCI card, hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket. Lift the card straight up to remove it. Be sure not to scrape the card against other components. Figure 7-17 Removing a Standard PCI Expansion Card If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion...
Page 94 If you are not installing a new expansion card, install an expansion slot cover to close the open slot. CAUTION: After removing an expansion card, you must replace it with a new card or expansion slot cover for proper cooling of internal components during operation. To install a new expansion card, slide the bracket on the end of the card down into the slot on the back of the chassis and press the card down firmly into the socket on the system board.
Page 95: Drives
Drives The computer supports up to five drives that may be installed in various configurations. When installing additional drives, follow these guidelines: ● The primary Serial ATA (SATA) hard drive must be connected to the dark blue SATA connector on the system board labeled SATA0. ●...
Page 96 Figure 7-21 Extra Optical Drive M3 Guide Screws Location CAUTION: To prevent loss of work and damage to the computer or drive: If you are inserting or removing a drive, shut down the operating system properly, turn off the computer, and unplug the power cord.
Page 97: System Board Drive Connections
System Board Drive Connections Refer to the following illustration and table to identify the system board drive connectors. Figure 7-22 System Board Drive Connections Table 7-3 System Board Drive Connections System Board Connector System Board Label Color SATA0 SATA0 dark blue SATA1 SATA1 white...
Page 98: Drive Positions
Drive Positions Figure 7-23 Desktop and Minitower Drive Positions Table 7-4 Drive Positions Three 5.25-inch external drive bays for optional drives (optical drives shown) One 3.5-inch external drive bay for optional drives (diskette drive shown) Two 3.5-inch internal hard drive bays An optional media card reader and an optional hard drive mounting bracket for these drive bays are available from HP.
Page 99: Removing A Drive From A Drive Bay
Removing a Drive from a Drive Bay CAUTION: All removable media should be taken out of a drive before removing the drive from the computer. Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70).
Page 100 ● If you are removing a media card reader, disconnect the USB cable from the system board. If the media card reader has a 1394 port, disconnect the 1394 cable from the PCI card. Figure 7-26 Disconnecting the Media Card Reader USB Cable Figure 7-27 Disconnecting the Media Card Reader 1394 Cable Chapter 7 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis...
Page 101 Remove the drive from the drive bay as follows: ● To remove a 5.25-inch drive in the desktop configuration, press down on the yellow drivelock mechanism (1) and slide the drive from the drive bay (2). CAUTION: When the yellow drivelock is pressed, all the external 5.25-inch drives are released so do not tilt the unit and allow the drives to fall out.
Page 102 ● To remove a hard drive from and internal 3.5-inch drive bay, pull up on the green hard drive drivelock mechanism (1) for that drive and slide the drive from the drive bay (2). Figure 7-30 Removing a Hard Drive Store the removed drive in anti-static packaging.
Page 103: Installing A 5.25-Inch Or 3.5-Inch Drive Into An External Drive Bay
Installing a 5.25-inch or 3.5-inch Drive into an External Drive Bay NOTE: A 3.5-inch drive may be a diskette drive or a media card reader. A 5.25-inch drive may be an optical drive or a media card reader with a 5.25-inch adapter kit attached. Prepare the computer for disassembly (Preparation for Disassembly on page 63).
Page 104 NOTE: If you are installing a third optional drive, you may need to remove the strap that bundles the extra power connectors. Connect the power cable (1) and data cable (2) to the rear of the optical drive or diskette drive. Figure 7-32 Connecting the Drive Cables (Optical Drive shown) If you are installing a new drive, connect the opposite end of the data cable to the appropriate...
Page 105: Installing A 3.5-Inch Sata Hard Drive Into An Internal Drive Bay
Installing a 3.5-inch SATA Hard Drive into an Internal Drive Bay NOTE: The system does not support Parallel ATA (PATA) hard drives. Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive.
Page 106 Slide the hard drive down into the drive cage until it locks. The drivelock automatically secures the drive in the bay. Figure 7-34 Installing a Hard Drive into the Hard Drive Bay CAUTION: Make sure the guide screws line up with the guide slots in the drive cage. The use of unnecessary force when installing any drive into the drive bay may result in damage to the drive.
Page 107: Removing And Replacing A Removable 3.5-Inch Sata Hard Drive
Removing and Replacing a Removable 3.5-inch SATA Hard Drive Some models are equipped with a Removable SATA Hard Drive Enclosure in the 5.25-inch external drive bay. The hard drive is housed in a carrier that can be quickly and easily removed from the drive bay.
Page 108 Remove the adhesive strip that secures the thermal sensor to the top of the hard drive (1) and move the thermal sensor away from the carrier (2). Figure 7-37 Removing the Thermal Sensor Remove the four screws from the bottom of the hard drive carrier. Figure 7-38 Removing the Security Screws Chapter 7 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis...
Page 109 Slide the hard drive back to disconnect it from the carrier then lift it up and out of the carrier. Figure 7-39 Removing the Hard Drive Place the new hard drive in the carrier then slide the hard drive back so that it seats in the SATA connector on the carrier's circuit board.
Page 110 Replace the four screws in the bottom of the carrier to hold the drive securely in place. Figure 7-41 Replacing the Security Screws Place the thermal sensor on top of the hard drive in a position that does not cover the label (1) and attach the thermal sensor to the top of the hard drive with the adhesive strip (2).
Page 111 Slide the cover on the carrier (1) and replace the screw on the rear of the carrier to secure the cover in place (2). Figure 7-43 Replacing the Carrier Cover Slide the hard drive carrier into the enclosure on the computer and lock it with the key provided. NOTE: The carrier must be locked for power to be supplied to the hard drive.
Page 112: Front I/O, Usb, Power Switch Assembly
Front I/O, USB, Power Switch Assembly Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Remove the front bezel (Front Bezel on page 71). Disconnect the three cables (front USB, power button LED, and front audio) from the system board. Remove the audio cable from the clip on top of the fan shroud.
Page 113: Speaker
Speaker Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Disconnect the speaker wire from the system board, and remove the wire from the clip on top of the fan shroud.
Page 114: Rear Chassis Fan
Rear Chassis Fan Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Disconnect the fan control cable from the system board. Press down on the two upper tabs to loosen the fan housing from the chassis. Rotate the fan forward, and then lift it up and out of the chassis.
Page 115: Esata Port Assembly
eSATA port assembly Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Remove the two screws that secure the port to the chassis. Disconnect the cable from the system board Remove the port assembly from the chassis.
Page 116: Heatsink
Heatsink Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Unscrew the four captive screws that secure the heatsink to the system board. CAUTION: Heatsink retaining screws should be removed in diagonally opposite pairs (as in an X) to even the downward forces on the processor.
Page 117: Fan Shroud
Fan Shroud Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Remove the heatsink (Heatsink on page 104). Pull up on all four shroud tabs simultaneously and slide the shroud from the heatsink. Figure 7-49 Removing the fan shroud To reinstall the fan shroud, reverse the removal procedure.
Page 118: Processor
Processor Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Remove the heatsink (Heatsink on page 104). Rotate the locking lever to its full open position (1). Raise and rotate the microprocessor retainer to its fully open position (2).
Page 119: Front Chassis Fan
If using a new heatsink, remove the protective covering from the bottom of the heatsink and place it in position atop the processor. Secure the heatsink to the system board and system board tray with the 4 captive screws and attach the heatsink control cable to the system board.
Page 120: Power Supply
Power Supply Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Disconnect all power cables from the mass storage devices and from the system board. Remove the four screws that connect the power supply to the chassis. Figure 7-52 Removing the power supply, screw locations Press the tab in front of the power supply that holds it in place.
Page 121: System Board
System Board Prepare the computer for disassembly (Preparation for Disassembly on page 63). When replacing the system board, make sure the following components are removed from the defective system board and installed on the replacement system board: ● Memory modules ●...
Page 122: Battery
Battery The battery that comes with your computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery. NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket.
Page 123: Type 1 Battery Holder
Type 1 Battery Holder Lift the battery out of its holder. Figure 7-55 Removing the battery from a type 1 holder Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. Replace the computer access panel.
Page 124: Type 3 Battery Holder
Plug in the computer and turn on power to the computer. Reset the date and time and any special system setups using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. Type 3 Battery Holder Pull back on the clip (1) that holds the battery in place, then remove the battery (2). Insert the new battery and position the clip back in place.
Page 125: Changing From A Minitower To A Desktop Configuration
Changing from a Minitower to a Desktop Configuration Prepare the computer for disassembly (Preparation for Disassembly on page 63). Remove the computer access panel (Computer Access Panel on page 70). Remove the front bezel (Front Bezel on page 71). Disconnect all power and data cables from the back of the drives in the 5.25-inch drive bays. To release the drives from the 5.25-inch drive bay, lift the release tab on the green latch drive bracket for the drive.
Page 126 Before you reinstall each drive into the chassis, turn the drive so that it is perpendicular to the internal 3.5-inch drive. The drive should be parallel to the green latch drive bracket. Figure 7-59 Installing a Drive in the Desktop Configuration Gently slide the drive into the uppermost available bay until it snaps into place.
Page 127: Changing From A Desktop To A Minitower Configuration
Reposition the subpanel (rotate it 90º) with the logo at the bottom, then snap it back into the bezel. Figure 7-60 Changing from a Minitower to a Desktop Configuration Changing from a Desktop to a Minitower Configuration Prepare the computer for disassembly (Preparation for Disassembly on page 63).
Page 128 Before you reinstall each drive into the chassis, turn it so that it is in the same orientation as the internal 3.5-inch drive. The bottom of the drive should be parallel to the yellow drivelock. Figure 7-62 Installing a Drive in the Minitower Configuration Gently slide the drive into the uppermost available bay until it snaps into place.
Page 129 Reposition the subpanel (rotate it 90º) with the logo at the bottom, then snap it back into the bezel. Figure 7-63 Changing from a Desktop to a Minitower Configuration Changing from a Desktop to a Minitower Configuration 117...
Page 130: Removal And Replacement Procedures Small Form Factor (Sff) Chassis
Removal and Replacement Procedures Small Form Factor (SFF) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. NOTE: Not all features listed in this guide are available on all computers.
Page 131: Unlocking The Smart Cover Lock
Unlocking the Smart Cover Lock NOTE: The Smart Cover Lock is an optional feature included on some models only. The Smart Cover Lock is a software-controllable cover lock, controlled by the setup password. This lock prevents unauthorized access to the internal components. The computer ships with the Smart Cover Lock in the unlocked position.
Page 132 Use the Smart Cover FailSafe Key to remove the tamper-proof screw that secures the Smart Cover Lock to the chassis. Figure 8-1 Removing the Smart Cover Lock Screw You can now remove the access panel. See Computer Access Panel on page 125.
Page 133: External Security Devices
External Security Devices The following security devices are used to prevent unauthorized access to the internal components of the computer and/or secure the computer to a fixed object. Installing a Security Lock The security locks displayed below and on the following pages can be used to secure the computer. Cable Lock Figure 8-2 Installing a Cable Lock...
Page 134: Padlock
Padlock Figure 8-3 Installing a Padlock 122 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis...
Page 135: Hp Business Pc Security Lock
HP Business PC Security Lock Fasten the security cable by looping it around a stationary object. Figure 8-4 Securing the Cable to a Fixed Object Thread the keyboard and mouse cables through the lock. Figure 8-5 Threading the Keyboard and Mouse Cables External Security Devices 123...
Page 136 Screw the lock to the chassis using the screw provided. Figure 8-6 Attaching the Lock to the Chassis Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the lock. Use the key provided to disengage the lock. Figure 8-7 Engaging the Lock 124 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis...
Page 137: Front Bezel Security
Front Bezel Security The front bezel can be locked in place by installing a security screw provided by HP. The security screw is located on the fan duct inside the chassis. To lock the front bezel, remove the security screw from the fan duct (1) and install it through the chassis frame into the front bezel (2). Figure 8-8 Installing the Front Bezel Security Screw Computer Access Panel...
Page 138: Front Bezel
Front Bezel Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125). Lift up the latch behind the upper right side of the bezel and push down on the latch behind the lower right side of the bezel (2), then pull the right side of the bezel off the chassis (1), followed by the left side.
Page 139: Bezel Blanks
Bezel Blanks On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays that need to be removed before installing a drive. To remove a bezel blank: Remove the front bezel (Front Bezel on page 126).. To remove the 3.5-inch bezel blank, push the two retaining tabs that hold the bezel blank in place towards the outer right edge of the bezel (1) and slide the bezel blank to the right to remove it (2).
Page 140: Installing Additional Memory
Installing Additional Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs). DIMMs The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.
Page 141: Populating Dimm Sockets
Populating DIMM Sockets There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory channel A. Sockets DIMM3 and DIMM4 operate in memory channel B. Figure 8-13 DIMM Socket Locations Table 8-1...
Page 142: Installing Dimms
and the remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the largest amount of memory is spread between the two channels. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. For example, if you are populating the sockets with one 1-GB DIMM, and three 512-MB DIMMs, Channel A should be populated with the 1-GB DIMM and one 512-MB DIMM, and Channel B should be populated with the two 512-MB DIMMs.
Page 143 Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Figure 8-14 Installing a DIMM NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket.
Page 144: Expansion Cards
Expansion Cards The computer has one PCI expansion slot, one PCI Express x1 expansion slot, one PCI Express x16 expansion slot, and one PCI Express x16 expansion slot that is downshifted to a x4 slot. NOTE: The PCI and PCI Express slots support only low profile cards. An optional PCI riser card with two full height standard PCI slots is available from HP.
Page 145 Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab on the latch and rotating the latch to the open position. Figure 8-16 Opening the Expansion Slot Retainer Before installing an expansion card, remove the expansion slot cover or the existing expansion card.
Page 146 If you are removing a standard PCI card, hold the card at each end, and carefully rock it back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket then away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape the card against the other components.
Page 147 Store the removed card in anti-static packaging. If you are not installing a new expansion card, install an expansion slot cover to close the open slot. CAUTION: After removing an expansion card, you must replace it with a new card or expansion slot cover for proper cooling of internal components during operation.
Page 148 Rotate the slot cover retention latch back in place to secure the expansion card. Figure 8-21 Closing the Expansion Slot Retainer Connect external cables to the installed card, if needed. Connect internal cables to the system board, if needed. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide for instructions on using Computer Setup.
Page 149: Cable Management
Cable Management The Small Form Factor chassis is a very compact computer and proper routing of the internal cables is critical to the operation of the computer. Follow good cable management practices when working inside the computer. ● Keep cables away from major heat sources like the heatsink. ●...
Page 150: Cable Connections
Cable Connections System board connectors are color-coded to make it easier to find the proper connection. Cable Cable Designator Power Supply System board, 24-pin Power Supply Diskette drive Power Supply CPU power, 6-pin Power Supply 1st SATA hard drive Power Supply 2nd SATA hard drive Power Supply Optical drive...
Page 151: Drives
Drives A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. CAUTION: Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive. Failure to do so will result in data loss. After replacing the primary hard drive, you will need to run the Restore Plus! CD to load the HP factory-installed files.
Page 152: Installing And Removing Drives
Installing and Removing Drives When installing additional drives, follow these guidelines: ● The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on the system board labeled SATA0. ● Connect a SATA optical drive to the white SATA connector on the system board labeled SATA1. ●...
Page 153 Figure 8-25 Extra Optical Drive M3 Guide Screws Location CAUTION: To prevent loss of work and damage to the computer or drive: If you are inserting or removing a drive, shut down the operating system properly, turn off the computer, and unplug the power cord.
Page 154: System Board Drive Connections
System Board Drive Connections Refer to the following illustration and table to identify the system board drive connectors. Figure 8-26 System Board Drive Connections Table 8-4 System Board Drive Connections System Board Connector System Board Label Color SATA0 SATA0 dark blue SATA1 SATA1 white...
Page 155: Removing An Optical Drive
Removing an Optical Drive CAUTION: All removable media should be taken out of a drive before removing the drive from the computer. To remove an optical drive: Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125).
Page 156: Installing An Optical Drive Into The 5.25-Inch Drive Bay
Rotate the drive cage back down to its normal position. CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down. Figure 8-29 Rotating the Drive Cage Down Press down on the green drive retainer button located on the left side of the drive to disengage the drive from the drive cage (1).
Page 157 Install two M3 metric guide screws in the lower holes on each side of the drive. HP has provided four extra M3 metric guide screws on the front of the chassis, under the front bezel. The M3 metric guide screws are black. Refer to Installing and Removing Drives on page 140 for an illustration of the extra M3 metric guide screws location.
Page 158 Rotate the drive cage to its upright position. Figure 8-33 Rotating the Drive Cage Up Connect the SATA data cable to the white system board connector labeled SATA1. Route the data cable through the cable guides. CAUTION: There are two cable guides that keep the data cable from being pinched by the drive cage when raising or lowering it.
Page 159: Removing An External 3.5-Inch Drive
Rotate the drive cage back down to its normal position. CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down. Figure 8-35 Rotating the Drive Cage Down Lock any security devices that were disengaged when the access panel was removed. The system automatically recognizes the drive and reconfigures the computer.
Page 160 Disconnect the drive cables, as indicated in the following illustrations: If you are removing a diskette drive, disconnect the data cable (1) and power cable (2) from the back of the drive. Figure 8-36 Disconnecting the Diskette Drive Cables 148 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis...
Page 161 If you are removing a media card reader, disconnect the USB cable from the system board. If the media card reader has a 1394 port, disconnect the 1394 cable from the PCI card. Figure 8-37 Disconnecting the Media Card Reader USB Cable Figure 8-38 Disconnecting the Media Card Reader 1394 Cable Drives 149...
Page 162: Installing A Drive Into The 3.5-Inch External Drive Bay
Press the green drive retainer latch (1) located on the right side of the drive to disengage the drive from the drive cage. While pressing the drive retainer latch, slide the drive back until it stops, then lift it up and out of the drive cage (2). Figure 8-39 Removing a 3.5-inch Drive (Diskette Drive shown) NOTE:...
Page 163 Position the guide screws on the drive into the J-slots in the drive bay. Then slide the drive toward the front of the computer until it locks into place. Figure 8-40 Installing a Drive into the 3.5-inch Drive Bay (Diskette Drive shown) Connect the appropriate drive cables: If installing a diskette drive, connect the power and data cables to the rear of the drive and connect the other end of the data cable to the connector on the system board labeled FLOPPY.
Page 164: Removing And Replacing The Primary 3.5-Inch Internal Sata Hard Drive
Removing and Replacing the Primary 3.5-inch Internal SATA Hard Drive NOTE: The system does not support Parallel ATA (PATA) hard drives. Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive.
Page 165 Rotate the power supply to its upright position. The hard drive is located beneath the power supply. CAUTION: If the computer has a Smart Cover Lock installed next to the drive cage, carefully route all cables around the Smart Cover Lock assembly as you raise the power supply to avoid damage to the cables or lock.
Page 166 Press down on the green release latch next to the hard drive (1). While holding the latch down, slide the drive forward until it stops, then lift the drive up and out of the bay (2). Figure 8-44 Removing the Hard Drive To install a hard drive, you must transfer the silver and blue isolation mounting guide screws from the old hard drive to the new hard drive.
Page 167 Align the guide screws with the slots on the chassis drive cage, press the hard drive down into the bay, then slide it back until it stops and locks in place. Figure 8-46 Installing the Hard Drive Connect the power and data cables to the back of the hard drive. NOTE: When replacing the primary hard drive, be sure to route the SATA and power cables through the cable guide on the bottom of the chassis frame behind the hard drive.
Page 168: Removing And Replacing A Removable 3.5-Inch Sata Hard Drive
Removing and Replacing a Removable 3.5-inch SATA Hard Drive Some models are equipped with a Removable SATA Hard Drive Enclosure in the 5.25-inch external drive bay. The hard drive is housed in a carrier that can be quickly and easily removed from the drive bay.
Page 169 Remove the adhesive strip that secures the thermal sensor to the top of the hard drive (1) and move the thermal sensor away from the carrier (2). Figure 8-48 Removing the Thermal Sensor Remove the four screws from the bottom of the hard drive carrier. Figure 8-49 Removing the Security Screws Drives 157...
Page 170 Slide the hard drive back to disconnect it from the carrier then lift it up and out of the carrier. Figure 8-50 Removing the Hard Drive Place the new hard drive in the carrier then slide the hard drive back so that it seats in the SATA connector on the carrier's circuit board.
Page 171 Replace the four screws in the bottom of the carrier to hold the drive securely in place. Figure 8-52 Replacing the Security Screws Place the thermal sensor on top of the hard drive in a position that does not cover the label (1) and attach the thermal sensor to the top of the hard drive with the adhesive strip (2).
Page 172 Slide the cover on the carrier (1) and replace the screw on the rear of the carrier to secure the cover in place (2). Figure 8-54 Replacing the Carrier Cover Slide the hard drive carrier into the enclosure on the computer and lock it with the key provided. NOTE: The carrier must be locked for power to be supplied to the hard drive.
Page 173: Fan Shroud
Fan Shroud Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125). Lift the fan shroud straight up out of the chassis. Figure 8-55 Removing the fan shroud To install the fan shroud, reverse the removal procedure. Fan Shroud 161...
Page 174: Front Fan Assembly
Front Fan Assembly Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125). Remove the front bezel (Front Bezel on page 126). Remove the fan shroud (Fan Shroud on page 161).
Page 175: Hood Sensor
Hood Sensor The hood sensor is installed in the top of the baffle that is attached to the chassis fan. Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125).
Page 176: Power Switch Assembly
Power Switch Assembly Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125). Remove the front bezel (Front Bezel on page 126). Remove the chassis fan (Front Fan Assembly on page 162).
Page 177: Front I/O Device
Front I/O Device Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125). Remove the front bezel (Front Bezel on page 126). Remove the chassis fan (Front Fan Assembly on page 162).
Page 178: Smart Cover Lock
Lift the speaker from the inside of the chassis to remove it. Figure 8-60 Removing the speaker To install the speaker, reverse the removal procedures. Smart Cover Lock Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125).
Page 179: Heatsink
Heatsink Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125). Remove the fan shroud (Fan Shroud on page 161). Remove the chassis fan (Front Fan Assembly on page 162).
Page 180: Processor
Processor Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125). Remove the fan shroud (Fan Shroud on page 161). Remove the heatsink (Heatsink on page 167). Rotate the locking lever to its full open position (1). Raise and rotate the microprocessor retainer to its fully open position (2).
Page 181: Power Supply
Apply the thermal grease provided in the spares kit to the top of the processor and install the heatsink atop the processor. Go to step 7. If using a new heatsink, remove the protective covering from the bottom of the heatsink and place it in position atop the processor.
Page 182 Pull the power supply forward until the posts on the power supply move forward in the power supply bracket, and then lift the power supply straight up and out of the chassis. Figure 8-65 Removing the power supply To install the power supply, reverse the removal procedure. CAUTION: When installing the power supply cables, make sure they are properly positioned so they are not cut by the drive cage and are not pinched by the rotating power supply.
Page 183: System Board
System Board Prepare the computer for disassembly (Preparation for Disassembly on page 118). Remove the access panel (Computer Access Panel on page 125). Remove all PCI and PCI Express expansion boards (Expansion Cards on page 132). Remove the fan shroud from the chassis (Fan Shroud on page 161).
Page 184: Backwall
CAUTION: Before reinstalling the heatsink you must clean the top of the processor and the bottom of the heatsink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply thermal grease to the top of the processor from the syringe supplied in the spares kit. CAUTION: When reconnecting the cables it is important that they be positioned so they do not interfere with the rotation of the drive cage or power supply.
Page 185: Battery
Battery The battery that comes with your computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery. NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket.
Page 186: Type 1 Battery Holder
Type 1 Battery Holder Lift the battery out of its holder. Figure 8-68 Removing the battery from a type 1 holder Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. Replace the computer access panel.
Page 187: Type 3 Battery Holder
Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. Type 3 Battery Holder Pull back on the clip (1) that holds the battery in place, then remove the battery (2). Insert the new battery and position the clip back in place.
Page 188: Using The Small Form Factor Computer In A Tower Orientation
Using the Small Form Factor Computer in a Tower Orientation The Small Form Factor computer can be used in a tower orientation. The HP logo plate on the front bezel is adjustable for either desktop or tower orientation. Prepare the computer for disassembly (Preparation for Disassembly on page 118).
Page 189 Orient the computer so that its right side is facing down. Figure 8-72 Changing from Desktop to Tower Orientation NOTE: To stabilize the computer in a tower orientation, HP recommends the use of the optional tower stand. Reconnect the power cord and any external devices, then turn on the computer. Lock any security devices that were disengaged when the access panel was removed.
Page 190: Removal And Replacement Procedures Ultra-Slim Desktop (Usdt) Chassis
Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. NOTE: Not all features listed in this guide are available on all computers.
Page 191: External Security Devices
External Security Devices The following security devices are used to prevent unauthorized access to the internal components of the computer and/or secure the computer to a fixed object. Installing a Security Lock Cable Lock There are two cable lock slots on the rear of the computer. The slot next to the thumbscrew should be used when there is no port cover.
Page 192: Padlock
Padlock Figure 9-3 Installing a Padlock HP Business PC Security Lock Fasten the security cable by looping it around a stationary object. Figure 9-4 Securing the Cable to a Fixed Object 180 Chapter 9 Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis...
Page 193 Thread the keyboard and mouse cables through the lock. Figure 9-5 Threading the Keyboard and Mouse Cables Screw the lock to the chassis using the screw provided. Figure 9-6 Attaching the Lock to the Chassis External Security Devices 181...
Page 194 Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the lock. Use the key provided to disengage the lock. Figure 9-7 Engaging the Lock 182 Chapter 9 Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis...
Page 195: Computer Access Panel
Computer Access Panel To access internal components, you must remove the access panel: Prepare the computer for disassembly (Preparation for Disassembly on page 178). Loosen the thumbscrew on the rear of the computer (1), slide the access panel toward the front of the computer, and then lift it off (2).
Page 196: Front Bezel
Front Bezel Prepare the computer for disassembly (Preparation for Disassembly on page 178). Remove the computer access panel (Computer Access Panel on page 183). Lift the fan and shroud assembly up and place it on top of the optical drive to access the front bezel release tabs.
Page 197: Bezel Blank
Bezel Blank On some models, there is a bezel blank covering the external drive bay that needs to be removed before installing a drive. To remove a bezel blank: Remove the computer access panel (Front Bezel on page 184). Push the two retaining tabs that hold the bezel blank in place towards the outer right edge of the bezel (1) and pull the bezel blank inwards to remove it (2).
Page 198: Installing Additional Memory
Installing Additional Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) small outline dual inline memory modules (SODIMMs). SODIMMs The memory sockets on the system board can be populated with up to two industry-standard SODIMMs. These memory sockets are populated with at least one preinstalled SODIMM.
Page 199: Populating Sodimm Sockets
Populating SODIMM Sockets There are two SODIMM sockets on the system board, with one socket per channel. The sockets are labeled DIMM1 and DIMM3. The DIMM1 socket operates in memory channel A. The DIMM3 socket operates in memory channel B. Figure 9-12 SODIMM Socket Locations Table 9-1...
Page 200: Installing Sodimms
Installing SODIMMs CAUTION: You must disconnect the power cord before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.
Page 201 Slide the new SODIMM into the socket at approximately a 30° angle (1) then press the SODIMM down (2) so that the latches lock it in place. Figure 9-14 Installing a SODIMM NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket.
Page 202: Cable Management
Cable Management Always follow good cable management practices when working inside the computer. ● Keep cables away from major heat sources like the heatsink. ● Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them.
Page 203: Cable Connections
Cable Connections System board connectors are color-coded to make it easier to find the proper connection. System Board Connections System Board Connector Connector Name Connector Color Description CHFAN1 Maroon Front chassis fan CHFAN2 Brown Rear chassis fan SPRK White Internal speaker SATA1 White Optical data...
Page 204: Preparing The New Optical Drive
Preparing the New Optical Drive Before the new optical drive can be used, the release latch must be attached. Peel the backing off the adhesive on the release latch. Without allowing the release latch to touch the optical drive, carefully align the holes on the release latch with the pins on the side of the optical drive.
Page 205: Installing The New Optical Drive
Installing the New Optical Drive NOTE: If you are installing an optical drive in a bay that did not previously have a drive in it, you must remove the access panel and the bezel blank covering the opening of the bay before proceeding. Follow the procedures in Computer Access Panel on page 183 Bezel Blank on page...
Page 206 Pull the connector straight up to disconnect it from the system board. Figure 9-19 Removing the optical drive connector To install the optical drive connector, reverse the removal procedures. 194 Chapter 9 Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis...
Page 207: Hard Drive
Hard Drive NOTE: The Ultra-Slim Desktop supports only 2.5-inch Serial ATA (SATA) internal hard drives; parallel ATA (PATA) internal hard drives are not supported. Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive.
Page 208 Lift the hard drive carrier straight up and out of the chassis. Figure 9-21 Removing the Hard Drive Carrier To remove the hard drive from the carrier, remove the guide screw from the front left side of the carrier. Figure 9-22 Removing the Hard Drive Guide Screw 196 Chapter 9 Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis...
Page 209 Slide the carrier back and remove the hard drive. Figure 9-23 Removing the Hard Drive Transfer the three remaining guide screws (two on the right and one on the rear left) from the old drive to the new drive. Figure 9-24 Transferring the Guide Screws Hard Drive 197...
Page 210 Align the guide screws with the slots on the carrier and slide the new hard drive into the carrier (1), then replace the guide screw on the front left of the carrier to secure the drive in the carrier (2). Figure 9-25 Installing the Hard Drive in the Carrier To place the hard drive carrier back in the chassis, align the guide screws with the slots on the...
Page 211: Hard Drive Cage
NOTE: No configuration of the SATA hard drive is necessary; the computer automatically recognizes it the next time you turn on the computer. After replacing the hard drive, use the Recovery Disc Set that you created when you initially set up the computer to restore the operating system, software drivers, and any software applications that were preinstalled on the computer.
Page 212: Port Cover
Port Cover An optional rear port cover is available for the computer. To install the port cover: Thread the cables through the bottom hole on the port cover (1) and connect the cables to the rear ports on the computer. Insert the hooks on the port cover into the slots on the rear of the chassis, then slide the cover to the right to secure it in place (2).
Page 213: Front Fan
Figure 9-29 Removing a Port Cover Front Fan Prepare the computer for disassembly (Preparation for Disassembly on page 178). Remove the computer access panel (Computer Access Panel on page 183). Disconnect the fan control cable from the system board. Lift the fan straight up and out of the chassis. Figure 9-30 Removing the front fan To install the front fan, reverse the removal procedure.
Page 214: Speaker
Speaker Prepare the computer for disassembly (Preparation for Disassembly on page 178). Remove the computer access panel (Computer Access Panel on page 183). Remove the front bezel (Front Bezel on page 184). Remove the optical drive (Removing the Existing Optical Drive on page 191).
Page 215: Rear Fan
Rear Fan Prepare the computer for disassembly (Preparation for Disassembly on page 178). Remove the computer access panel (Computer Access Panel on page 183). Disconnect the fan control cable from the system board. Remove the four screws that secure the fan to the chassis (1), slide the fan forward, and then lift it up and out of the chassis (2).
Page 216: Heatsink
Heatsink Prepare the computer for disassembly (Preparation for Disassembly on page 178). Remove the computer access panel (Computer Access Panel on page 183). Remove the front fan (Front Fan on page 201). Lift the fan up and place it on top of the optical drive to access the front bezel release tabs. You do not need to disconnect the fan cable from the system board.
Page 217: Processor
CAUTION: Heatsink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heatsink on the processor. This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board. Processor Prepare the computer for disassembly (Preparation for Disassembly on page...
Page 218: System Board
Position the heatsink atop the processor. If using a new heatsink, remove the protective covering from the bottom of the heatsink and place it in position atop the processor. Secure the heatsink to the system board and system board tray with the 4 captive screws and attach the heatsink control cable to the system board.
Page 219 Remove the five remaining screws that secure the system board to the chassis. Figure 9-36 Removing the system board Slide system board toward the front of the unit until the rear connectors are clear of their slots in the chassis. Lift the rear of the system board until it clears the chassis, and then remove the system board from the chassis.
Page 220: Hood Sensor
Hood Sensor Prepare the computer for disassembly (Preparation for Disassembly on page 178). Remove the computer access panel (Computer Access Panel on page 183). Remove the optical drive (Removing the Existing Optical Drive on page 191). Remove the hard drive (Hard Drive on page 195).
Page 221 WARNING! This computer contains an internal lithium manganese dioxide battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury: Do not attempt to recharge the battery. Do not expose to temperatures higher than 140°F (60°C). Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
Page 222: Changing From Desktop To Tower Configuration
Changing from Desktop to Tower Configuration Prepare the computer for disassembly (Preparation for Disassembly on page 178). Remove the computer access panel (Computer Access Panel on page 183). Remove the front bezel (Front Bezel on page 184). On the back side of the logo plate, press down on the “step” to remove the logo plate from the bezel (1).
Page 223 Place the computer firmly down into the stand. Figure 9-40 Placing the Computer on the Stand Reconnect the external equipment, plug the power cord into a power outlet, and turn the computer Lock any security devices that were disengaged when the computer cover or access panel was removed.
Page 224: Appendix A Connector Pin Assignments
Connector Pin Assignments This appendix contains the pin assignments for many computer and workstation connectors. Some of these connectors may not be used on the product being serviced. Keyboard Connector and Icon Signal Data Unused Ground +5 VDC Clock Unused Mouse Connector and Icon Signal...
Page 225: Ethernet Rj-45
Ethernet RJ-45 Connector and Icon Signal (+) Transmit Data (-) Transmit Data (+) Receive Data Unused Unused (-) Receive Data Unused Unused Ethernet AUI Connector and Icon Signal Signal Ground Positive AUI Differential Receive Negative AUI Differential Collision +12V Positive AUI Differential Collision Ground Negative AUI Differential Transmit Ground...
Page 226: Parallel Interface
Parallel Interface Connector and Icon Signal Signal Strobe Acknowledge Data Bit 0 Busy Data Bit 1 Paper End Data Bit 2 Select Data Bit 3 Auto Linefeed Data Bit 4 Error Data Bit 5 Initialize Printer Data Bit 6 Select IN Data Bit 7 18–25 Signal Ground...
Page 227: Usb
Connector and Icon Signal +5 VDC - Data + Data Ground Microphone Connector and Icon (1/8” miniphone) Signal 1 (Tip) Audio_left 1 2 3 2 (Ring) Power_Right 3 (Shield) Audio_right Headphone Connector and Icon (1/8” miniphone) Signal 1 (Tip) Audio_left 1 2 3 2 (Ring) Power_Right...
Page 228: External Infrared Transceiver
External Infrared Transceiver Connector and Icon Signal Transmit Receive Ground Mode Not Used Not Used Not Used Monitor Connector and Icon Signal Signal Red Analog +5V (fused) Green Analog Ground Blue Analog Not used Not used DDC Serial Data Ground Horizontal Sync Ground Vertical Sync...
Page 229: Ata/Atapi (Ide) Standard Drive Cable
ATA/ATAPI (IDE) Standard Drive Cable Connector Signal Signal Signal Reset DMAK Ground DD14 Ground INTRQ DD15 IOCS16 Ground (Key) PDIAG (cable detect) DMARQ DD10 Ground DIOW CS1FX DD11 Ground CS3FX DIOR DASP DD12 Ground Ground IORDY DD13 CSEL ATA/ATAPI (IDE) Standard Drive Cable 217...
Page 230: Cd-Rom 50-Pin Connector
CD-ROM 50-Pin Connector Connector Signal Signal Signal Signal Audio L-ch DD12 IORDY Audio R-ch DMACK Audio GND DD13 INTRQ IOCS16 RESET DD14 PDIAG DD15 CSEL DMARQ CS1FX DD10 CS3FX Vendor-specific DIOR DASP Vendor-specific DD11 DIOW 24-Pin Power Connector Front Signal Signal Signal Signal...
Page 231: 24-Pin Microfit Power (Cmt, Sff)
24-Pin MicroFit Power (CMT, SFF) Connector Front Signal Signal Signal Signal +5 Vaux PWRGD +12V +3.3V +5V Sense +3.3V +3.3V Sense Tach +3.3V PS_ON +3.3V Fan-CMD +3.3V 4-Pin Power (for CPU) Connector and Icon Signal +12V CPU -12V CPU 6-Pin Power (for CPU) (CMT, SFF) Connector and Icon Signal 12V CPU...
Page 232: Sata Data And Power
SATA Data and Power Drive Connector Signal Signal Signal Signal Ground Ground Ground Ground V 3.3 V 3.3 Ground Ground Ground Reserved Ground V 12 V 12 S = Data, P = Power PCI Express x1, x4, x8, and x16 PCI Express Connector Pin A Signal Signal...
Page 233: Pci Express
PERp8 PERn9 PERp13 PERN8 PERp12 PERn13 PERp11 PERn12 PERp10 PERn11 PERp14 PERn15 PERn14 PERp15 NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B Signal...
Page 234: Pci Express Mini Card
PETp11 PETn12 PETp10 PETn11 PETp9 PETn10 PETp14 PETn9 PETp13 PETn14 PRSNT2# RSVD PETp15 PETn15 NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 PCI Express Mini Card PCI Express Mini Card Connector Signal Signal...
Page 235: Dvi Connector
PETn0 Reserved* Reserved* Reserved* SMB_DATA USB_D+ LED_WLAN# PETp0 Reserved* Reserved* Reserved* LED_WPAN# +3.3V Reserved* Reserved* USB_D- LED_WWAN# +1.5V NOTE: *Reserved for future second PCI Express LAN (if needed) **Reserved for future wireless coexistence control interface (if needed) ***Reserved for future UIM interface (if needed) DVI Connector Connector and Icon Signal...
Page 236: Appendix B Power Cord Set Requirements
Power Cord Set Requirements The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
Page 237: Country-Specific Requirements
Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. Country Accrediting Agency Country Accrediting Agency Australia (1) EANSW Italy (1) Austria (1) Japan (3) METI Belgium (1) CEBC Norway (1) NEMKO Canada (2) Sweden (1) SEMKO Denmark (1) DEMKO...
Page 238: Appendix C Post Error Messages
POST Error Messages This appendix lists the error codes, error messages, and the various indicator light and audible sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the problem, and steps you can take to resolve the error condition. POST Message Disabled suppresses most system messages during POST, such as memory count and non-error text messages.
Page 239: Post Numeric Codes And Text Messages
POST Numeric Codes and Text Messages This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST. NOTE: The computer will beep once after a POST text message is displayed on the screen. Table C-1 Numeric Codes and Text Messages Control panel message...
Page 240 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 163-Time & Date Not Set CMOS jumper may not be properly installed. Check for proper placement of the CMOS jumper if applicable. 164-MemorySize Error Memory amount has changed since the last Press the key to save the memory boot (memory added or removed).
Page 241 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 304-Keyboard or System Unit Error Keyboard failure. Reconnect the keyboard with computer turned off. Ensure that none of the keys are depressed. Replace the keyboard. Replace the system board. 501-Display Adapter Failure Graphics display controller.
Page 242 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 921-Device in PCI Express slot failed to There is an incompatibility/problem with this Try rebooting the system. If the error initialize device and the system or PCI Express Link reoccurs, the device may not work with this could not be retrained to an x1.
Page 243 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 2200-PMM Allocation Error during MEBx Memory error during POST execution of the Reboot the computer. Download Management Engine (ME) BIOS Extensions Unplug the power cord, re-seat the option ROM.
Page 244 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 2205-Interface error during MEBx execution MEBx operation experienced a hardware Reboot the computer. error during communication with ME. If the error persists, update to the latest BIOS version.
Page 245: Interpreting Post Diagnostic Front Panel Leds And Audible Codes
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board.
Page 246 Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes four Power failure (power Open the hood and ensure the 4 or 6-wire times, once every second, supply is overloaded). power supply cable is seated into the followed by a two second connector on the system board.
Page 247: Interpreting Post Diagnostic Front Panel Leds And Audible Codes
Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes eight Invalid ROM based on bad Reflash the system ROM with the latest BIOS times, once every second, checksum. image. See the “Boot Block Emergency followed by a two second Recovery Mode”...
Page 248 Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Check to see if the 5V_aux light on the system board is turned on. If it is turned on, then replace the power button harness. If the problem persists, replace the system board.
Page 249: Appendix D Troubleshooting Without Diagnostics
Troubleshooting Without Diagnostics This chapter provides information on how to identify and correct minor problems, such as diskette drive, hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions. NOTE: For information on specific error messages that may appear on the screen during Power-On Self-Test (POST) at startup, refer to Appendix A,...
Page 250: Helpful Hints
● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to Helpful Hints on page 238 in this guide. To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature.
Page 251 ● Wake the computer by pressing any key on the keyboard or pressing the power button. If the system remains in suspend mode, shut down the computer by pressing and holding the power button for at least four seconds then press the power button again to restart the computer. If the system will not shut down, unplug the power cord, wait a few seconds, then plug it in again.
Page 252: Solving General Problems
Solving General Problems You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board.
Page 253 Table D-1 Solving General Problems (continued) There is no sound or sound volume is too low. Cause Solution System volume may be set low or muted. Check the F10 BIOS settings to make sure the internal system speaker is not muted (this setting does not affect the external speakers).
Page 254 Table D-1 Solving General Problems (continued) Poor performance is experienced. Cause Solution (Windows Vista) and type msconfig. On the Startup tab of the System Configuration Utility, clear applications that you do not want to launch automatically. Some software applications, especially games, are stressful Lower the display resolution for the current application or on the graphics subsystem consult the documentation that came with the application...
Page 255: Solving Power Problems
Table D-1 Solving General Problems (continued) System does not power on and the LEDs on the front of the computer are not flashing. Cause Solution Check that both power supply cables are properly connected to the system board. Check to see if the 5V_aux light on the system board is turned on.
Page 256: Solving Diskette Problems
Table D-2 Solving Power Problems (continued) Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Power failure (power supply is overloaded). Check that the voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage.
Page 257 Table D-3 Solving Diskette Problems (continued) Drive not found. Cause Solution Cable is loose. Reseat diskette drive data and power cable. Removable drive is not seated properly. Reseat the drive. The device has been hidden in Computer Setup. Run the Computer Setup utility and ensure Device Available is selected for the Legacy Diskette in Security >...
Page 258 Table D-3 Solving Diskette Problems (continued) A problem has occurred with a disk transaction. Cause Solution The directory structure is bad, or there is a problem with a file. In Microsoft Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error- checking, click Check Now.
Page 259: Solving Hard Drive Problems
Solving Hard Drive Problems Table D-4 Solving Hard Drive Problems Hard drive error occurs. Cause Solution Hard disk has bad sectors or has failed. In Microsoft Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools.
Page 260 Table D-4 Solving Hard Drive Problems (continued) Nonsystem disk/NTLDR missing message. Cause Solution The system is trying to start from a diskette that is not bootable. Remove the diskette from the diskette drive. The system is trying to start from the hard drive but the hard Insert a bootable diskette into the diskette drive and drive may have been damaged.
Page 261: Solving Media Card Reader Problems
Table D-4 Solving Hard Drive Problems (continued) Computer seems to be locked up. Cause Solution off the power. To restart the computer, press the power button again. The removable hard drive has no power to the hard drive enclosure. Cause Solution The lock on the enclosure is not turned to the “ON”...
Page 262 Table D-5 Solving Media Card Reader Problems (continued) A write-protected or locked error occurs when attempting to write to the media card. Cause Solution Media card is locked. Locking the media card is a safety feature If using an SD card, make sure that the lock tab located on the that prevents writing to and deleting from an SD/Memory Stick/ right of the SD card is not in the locked position.
Page 263: Solving Display Problems
Table D-5 Solving Media Card Reader Problems (continued) After inserting a media card in the reader, the computer attempts to boot from the media card. Cause Solution The inserted media card has boot capability. If you do not want to boot from the media card, remove it during boot or do not select the option to boot from the inserted media card during the boot process.
Page 264 Table D-6 Solving Display Problems (continued) Cannot enable integrated graphics after installing a PCI Express graphics card. Cause Solution On systems with Intel integrated graphics, the integrated The integrated graphics can be enabled in Computer Setup if graphics cannot be enabled after installing a PCI Express x16. a PCI or PCI Express x1 graphics card is installed, but it cannot be enabled if there is a graphics card in the PCI Express x16 slot.
Page 265 Table D-6 Solving Display Problems (continued) Dim characters. Cause Solution The brightness and contrast controls are not set properly. Adjust the monitor brightness and contrast controls. Cables are not properly connected. Check that the graphics cable is securely connected to the graphics card and the monitor.
Page 266 Table D-6 Solving Display Problems (continued) “Out of Range” displays on screen. Cause Solution Video resolution and refresh rate are set higher than what the Restart the computer and enter Safe Mode. Change the monitor supports. settings to a supported setting then restart the computer so that the new settings take effect.
Page 267: Solving Audio Problems
Table D-6 Solving Display Problems (continued) Certain typed symbols do not appear correct. Cause Solution Tools > Character Map. You can copy the symbol from the Character Map into a document. Solving Audio Problems If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following table.
Page 268: Solving Printer Problems
Table D-7 Solving Audio Problems (continued) Sound does not come out of the speaker or headphones. Cause Solution Digital CD audio is not enabled. Enable digital CD audio. In the Device Manager, right-click on the CD/DVD device and select Properties. Make sure Enable digital CD audio for this CD-ROM device is checked.
Page 269 Table D-8 Solving Printer Problems (continued) Printer will not print. Cause Solution The correct printer drivers for the application are not installed. Install the correct printer driver for the application. Try printing using the MS-DOS command: DIR C:\ > [printer port] where [printer port] is the address of the printer being used.
Page 270: Solving Keyboard And Mouse Problems
Solving Keyboard and Mouse Problems If you encounter keyboard or mouse problems, see the documentation that came with the equipment and to the common causes and solutions listed in the following table. Table D-9 Solving Keyboard Problems Keyboard commands and typing are not recognized by the computer. Cause Solution Keyboard connector is not properly connected.
Page 271: Solving Hardware Installation Problems
Table D-10 Solving Mouse Problems (continued) Mouse does not respond to movement or is too slow. Cause Solution Mouse may need cleaning. Remove the roller ball cover on the mouse and clean the internal components. Mouse may need repair. See the Worldwide Limited Warranty for terms and conditions. Computer is in standby mode.
Page 272 Table D-11 Solving Hardware Installation Problems (continued) A new device is not recognized as part of the system. Cause Solution Setup to reconfigure or disable devices to resolve the resource conflict. USB ports on the computer are disabled in Computer Setup. Enter Computer Setup (F10) and enable the USB ports.
Page 273: Solving Network Problems
Table D-11 Solving Hardware Installation Problems (continued) Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution For systems with integrated graphics, replace the system board.
Page 274 Table D-12 Solving Network Problems (continued) Wake-on-LAN feature is not functioning. Cause Solution Click the Configure button. Click the Power Management tab, then select the check box to Allow this device to wake the computer. Network driver does not detect network controller. Cause Solution Network controller is disabled.
Page 275 Table D-12 Solving Network Problems (continued) Diagnostics reports a failure. Cause Solution Network controller interrupt is shared with an expansion board. Under the Computer Setup Advanced menu, change the resource settings for the board. The network controller is defective. Contact an authorized service provider. Diagnostics passes, but the computer does not communicate with the network.
Page 276: Solving Memory Problems
Table D-12 Solving Network Problems (continued) Cannot connect to network server when attempting Remote System Installation. Cause Solution The network controller is not configured properly. Verify Network Connectivity, that a DHCP Server is present, and that the Remote System Installation Server contains the NIC drivers for your NIC.
Page 277: Solving Processor Problems
Table D-13 Solving Memory Problems (continued) Memory count during POST is wrong. Cause Solution The memory modules may not be installed correctly. Check that the memory modules have been installed correctly and that proper modules are used. Integrated graphics may use system memory. No action required.
Page 278: Solving Cd-Rom And Dvd Problems
Power LED flashes Red eleven times, once every second, followed by a two second pause. Cause Solution The current processor does not support a feature previously Install a TXT capable processor. enabled on this system. Disable TXT in the Computer Setup (F10) utility. Reinstall the original processor.
Page 279 Table D-15 Solving CD-ROM and DVD Problems (continued) CD-ROM or DVD devices are not detected or driver is not loaded. Cause Solution Drive is not connected properly or not properly configured. See the documentation that came with the optional device. Movie will not play in the DVD drive.
Page 280: Solving Usb Flash Drive Problems
USDT computer boots too slow after removing a CD-ROM or DVD drive. Cause Solution The system is searching for the drive during boot because the Disconnect the drive cable from the system board. drive cable is still attached to the system board. Solving USB Flash Drive Problems If you encounter USB flash drive problems, common causes and solutions are listed in the following table.
Page 281: Solving Front Panel Component Problems
Solving Front Panel Component Problems If you encounter problems with devices connected to the front panel, refer to the common causes and solutions listed in the following table. Table D-17 Solving Front Panel Component Problems A USB device, headphone, or microphone is not recognized by the computer. Cause Solution Device is not properly connected.
Page 282 Table D-18 Solving Internet Access Problems (continued) Unable to connect to the Internet. Cause Solution IP address is not configured properly. Contact your ISP for the correct IP address. Cookies are corrupted. (A “cookie” is a small piece of Windows Vista information that a Web server can store temporarily with the Select Start >...
Page 283: Solving Software Problems
Table D-18 Solving Internet Access Problems (continued) Internet takes too long to download Web sites. Cause Solution Select Start > Control Panel. Click on System and Maintenance. Click on System. In the Tasks list, select Device Manager. Double-click Modems. Double-click Agere Systems PCI-SV92PP Soft Modem.
Page 284: Contacting Customer Support
Table D-19 Solving Software Problems (continued) “Illegal Operation has Occurred” error message is displayed. Cause Solution Software being used is not Microsoft-certified for your version Verify that the software is certified by Microsoft for your version of Windows. of Windows (see program packaging for this information). Configuration files are corrupt.
Page 285: Appendix E System Board And Riser Board Reference Designators
System Board and Riser Board Reference Designators These reference designators are used on most but not all HP system and riser boards. Designator Component Battery socket/Battery LED - 5V_Aux or VIN Health-LED UID LED Power LED Boot block header/jumper Boot block recovery header ROM recovery header LAN IEEE test header CPLD programming header...
Page 286 PCI Express x4 graphics slot First parallel port Second parallel port Double-stacked parallel port, Top = Port B, Bottom = Port A Parallel port over single Serial Port Parallel port over Serial Port and Video Port Parallel port over dual VGA ports Display port connector DVI connector Keyboard connector, PS/2 (Closest to power supply)
Page 287 USB rear port choke (2nd) USB rear port choke (3rd) USB front port choke (2nd) P/S connector (20 or 24 pin) Second P/S connector (as required) Processor 12V header Secondary Processor 12V header Main Power/Control Panel Speaker connector Analog audio connector (from CD-ROM) Primary chassis fan header or primary CPU heatsink fan Secondary chassis fan header Diskette drive connector...
Page 288 Primary serial port/Connector for first serial port Double stack serial port, Top = Serial B, Bottom = Serial A Riser edge connector (male-mates with J30) Primary Serial ATA (SATA) connector Second Serial ATA (SATA) connector Third Serial ATA (SATA) connector Fourth Serial ATA (SATA) connector VSFF expansion connector Graphics option connector...
Page 289 Single chip solution (combined northbridge/southbridge) North bridge South bridge Super I/O Clock chip 64 bit Bridge NIC Chip NIC SPI ROM LOM1 PHY Audio Codec Audio internal speaker amplifier LOM2 LOM2 EEPROM LOM2 PHY SPI ROM - SOIC-8 footprint Fan controller SPI ROM - SO16 footprint TMDS controller Parallel port diode array...
Page 290 Primary (TH) system clock crystal Secondary (SMT) system clock crystal Primary NIC clock crystal Secondary NIC clock crystal Y5/H5 RTC clock crystal/tie-down SATA-to-PATA crystal L1–5 USB chokes 278 Appendix E System Board and Riser Board Reference Designators...
Page 291: Appendix F Specifications
Specifications CMT Specifications Table F-1 Specifications Desktop Dimensions 7.0 in 17.8 cm Height 17.63 in 44.8 cm Width 17.8 in 45.2 cm Depth Tower Dimensions 17.63 in 44.8 cm Height 7.0 in 17.8 cm Width 17.8 in 45.2 cm Depth Approximate Weight 26.4 lb 12.0 kg...
Page 292: Sff Specifications
Table F-1 Specifications (continued) Maximum (85% Efficient PS) 1519 BTU/hr 383 kg-cal/hr Typical (idle; 85% Efficient PS) 239 BTU/hr 60 kg-cal/hr Power Supply 115V 230V Operating Voltage Range 90-264 VAC 90-264 VAC Rated Voltage Range 100-240 VAC 100-240 VAC Rated Line Frequency 50-60 Hz 50-60 Hz Power Output...
Page 293: Usdt Specifications
Table F-2 Specifications (continued) Typical (idle; standard PS) 307 BTU/hr 77 kg-cal/hr Maximum (85% Efficient PS) 999 BTU/hr 252 kg-cal/hr Typical (idle; 85% Efficient PS) 239 BTU/hr 60 kg-cal/hr Power Supply 115V 230V Operating Voltage Range 90-264 VAC 90-264 VAC Rated Voltage Range 100-240 VAC 100-240 VAC...
Page 294 Table F-3 Specifications (continued) Heat Dissipation 550 BTU/hr 139 kg-cal/hr Maximum 222 BTU/hr 56 kg-cal/hr Typical (idle) Power Supply 90-264 VAC Operating Voltage Range 100-240 VAC Rated Voltage Range 50-60 Hz Rated Line Frequency Power Output 135 W Rated Input Current (maximum) 2.2A @ 100VAC 1.1A @ 200VAC This system utilizes an active power factor corrected external power supply.
Page 295: Index
Index Symbols/Numerics beep codes 233 changing operating systems, 24-pin MicroFit power pin bezel, removing 184 support 39 assignments 219 BIOS changing password 44 24-pin power pin HPQFlash 33 chasis types, illustrated 54 assignments 218 Remote ROM Flash 33 chassis 4-pin power pin assignments 219 boot problems 268 CMT illustrated 54 6-pin power pin assignments 219...
Page 296 processor removal and transferring hard drive Fault Notification and replacement 106 screws 197 Recovery 49 rear chassis fan removal and upgrading hard drive 195 fingerprint identification replacement 102 drive connectors 85 technology 49 speaker removal and drive, protecting 49 flash drive problems 268 replacement 101 DriveLock 46 flashing LEDs 233...
Page 297 heatsink internal components, monitor problems 251 CMT removal and accessing 183 mouse replacement 104 internal temperature of cleaning 60 SFF removal and computer 50 pin assignments 212 replacement 167 Internet access problems 269 mouse problems 258 USDT removal and Internet addresses. See Web sites replacement 204 national keyboard delimiter helpful hints 238...
Page 298 power problems 243 processor problems 265 SFF system board 171 power supply protecting hard drive 49 USDT battery 208 CMT removal and ProtectTools Security USDT front fan 201 replacement 108 Manager 27 USDT hard drive cage 199 fan 60 PXE (Preboot Execution USDT heatsink 204 operating voltage range 282 Environment) 24...
Page 299 DriveLock 46 hood sensor removal and HP Client Management features, table 40 replacement 163 Interface 25 fingerprint identification power supply removal and HP Client Manager from technology 49 replacement 169 Symantec 28 front bezel 125 power switch assembly removal HP ProtectTools Security HP Business PC Security and replacement 164 Manager 27...
Page 300 tamper-proof screws ventilation, proper 58 tool 61 Verdiem Surveyor 32 temperature control 58 temperature, internal Wake-on-LAN feature 261 computer 50 Web sites thermal sensor 50 Altiris Client Management tools, servicing 60 Suite 29 Torx T15 screwdriver 60 BIOS download 33 tower configuration 210 Configuration tower orientation 176...

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Compaq dc7900

HP dc7900 - Convertible Minitower PC Service & Reference Manual

1 Installing and Customizing the Software

2 Computer Setup (F10) Utility

3 Computer Diagnostic Features

4 Desktop Management

5 Serial and Parallel ATA Drive Guidelines and Features

6 Identifying the Chassis, Routine Care, and Disassembly Preparation

7 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis

8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

9 Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis

Appendix A Connector Pin Assignments

Appendix B Power Cord Set Requirements

Appendix C POST Error Messages

Appendix D Troubleshooting Without Diagnostics

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Summary of Contents for HP dc7900 - Convertible Minitower PC