Page 1 Service Reference Guide HP Compaq dx2250 Business PC...
Page 2 Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. This document contains proprietary information that is protected by copyright.
Page 3: About This Book
About This Book WARNING! bodily harm or loss of life. CAUTION: damage to equipment or loss of information. NOTE: Text set off in this manner provides important supplemental information. ENWW Text set off in this manner indicates that failure to follow directions could result in Text set off in this manner indicates that failure to follow directions could result in...
Page 4 About This Book ENWW...
Page 5 Table of contents Index ... 153 ENWW...
Page 6 ENWW...
Page 7: Install The Operating System
This action points the operating system to the appropriate drivers. Obtain the latest support software, including support software for the operating system from http://www.hp.com/support. Select your country and language, select Download drivers and software, enter the model number of the computer, and press Enter. Transferring Files and Settings Use the Microsoft Windows XP Professional/Home Files and Settings Transfer Wizard to move files and settings from the old computer to the new one.
Page 8: Hp Backup And Recovery Manager
HP Backup and Recovery Manager Manual. You can order a Recovery Disc Set from HP by calling the HP support center. Go to the following Web site, select your region, and click the Technical support after you buy link under the Call HP heading to obtain the support center telephone number for your region.
Page 9: 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 10 The Computer Setup Utility screen is divided into menu headings and actions. Eight menu headings appear on the Computer Setup Utility screen: ● System Information ● Standard CMOS Features ● Advanced BIOS Features ● Advanced Chipset Features ● Integrated Peripherals ●...
Page 11: Computer Setup-System Information
Table 2-1 Computer Setup (F10) Utility Main Menu (continued) Power Management Setup PC Health Status (Action Choices) Computer Setup—System Information NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-2 Computer Setup—System Information Option Product Name SKU Number Processor Type...
Page 12: Computer Setup-Standard Cmos Features
Computer Setup—Standard CMOS Features NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-3 Computer Setup—Standard CMOS Features Option Date (mm:dd:yy) Time (hh:mm:ss) PATA Controller PATA Channel 0 Master PATA Channel 0 Slave SATA Controller SATA Mode Chapter 2 Computer Setup (F10) Utility Description...
Page 13 Table 2-3 Computer Setup—Standard CMOS Features (continued) SATA Channel 1 Master SATA Channel 2 Master Floppy Controller Drive A Halt On POST Delay ENWW For each, allows you to: ● run HDD self-test for selected channel: ● SMART Status Check ●...
Page 14: Computer Setup-Advanced Bios Features
Computer Setup—Advanced BIOS Features NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-4 Computer Setup—Advanced BIOS Features Device Boot Disabling F9 Boot Menu Removable Device Boot Seq. Hard Disk Boot Seq. Optical Drive Boot Seq.
Page 15: Computer Setup-Advanced Chipset Features
Computer Setup—Advanced Chipset Features NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-5 Computer Setup—Advanced Chipset Features Option UMA Frame Buffer Init Display First (VGA Setting) SURROUNDVIEW (VGA Setting) Auto Detect PCI Clk (VGA Setting) Spread Spectrum (VGA Setting)
Page 16: Computer Setup-Integrated Peripherals
Computer Setup—Integrated Peripherals NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-6 Computer Setup—Integrated Peripherals Option Onboard HD Audio OnChip USB Controller USB Legacy Support Onboard LAN Onboard LAN Boot Onboard Serial Port Onboard Parallel Port Parallel Port Mode Chapter 2 Computer Setup (F10) Utility...
Page 17: Computer Setup-Power Management Setup
Computer Setup—Power Management Setup NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-7 Computer Setup—Power Management Setup Option After AC Power Loss External Modem S5 Wake-Up Wake on PCI Device from S5 AMD Cool'n'Quiet RTC Alarm Resume Date (of Month) Resume Time...
Page 18: Computer Setup-Pc Health Status
Computer Setup—PC Health Status NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-8 Computer Setup—PC Health Status Option System Fan Fail Check Disables/enables system fan detection during POST. Smart Fan Function Current CPU Temperature Current System Temperature...
Page 19: Recovering The Configuration Settings
Make sure the target computer is turned on. Connect the removable storage to the target computer. Boot to DOS. Type N:\folder\BIOS.exe LOAD:ABC001.DAT (where N is the drive letter of the removable storage) to load the custom CMOS setting onto the target system. ENWW http://www.hp.com under the Software & Driver Downloads Recovering the Configuration Settings...
Page 20 Chapter 2 Computer Setup (F10) Utility ENWW...
Page 21: Accessing Hp Insight Diagnostics
The information in each screen of the utility can be saved as an html file and stored on a diskette or USB HP Drive Key. Use HP Insight Diagnostics to determine if all the devices installed on the computer are recognized by the system and functioning properly. Running tests is optional but recommended after installing or connecting a new device.
Page 22: Survey Tab
NOTE: language unless you want to test your specific keyboard. In the End User License Agreement page, click Agree if you agree with the terms. The HP Insight Diagnostics utility launches with the Survey tab displayed. Survey Tab The Survey tab displays important system configuration information.
Page 23: Status Tab
The test status (running, passed, or failed) of each device being tested ● The overall test progress of all devices being tested ● The test progress for each device being tested ● The elapsed test times for each device being tested ENWW HP Insight Diagnostics...
Page 24: 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 HP Drive Key (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 25: Downloading The Latest Version Of Hp Insight Diagnostics
Print the information from the storage device used to save it. NOTE: To exit HP Insight Diagnostics, click Exit Diagnostics button in the bottom left corner of the screen then remove the Documentation and Diagnostics CD from the optical drive.
Page 26 The HP Backup and Recovery Manager provides two basic recovery methods. The first, recovery of files and folders, operates in Windows. The second, PC Recovery, requires a reboot to the Recovery Partition or from the Recovery Disc Set. To reboot to the Recovery Partition, press F11 at startup when you see the message ”Press F11 for Emergency Recovery.”...
Page 27: Desktop Management
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 28: Hp Openview Agent
Scroll down and click on the link to install Altiris AClient. The Altiris Deployment Solution Agent is a key infrastructure component for enabling the HP Client Foundation Suite and the Client Premium Suite. To learn about the other infrastructure components necessary for implementing the HP Client Foundation Suite and Client Premium Suite, please visit www.hp.com/go/easydeploy.
Page 29 Follow the instructions in the wizard. In addition to allowing you to create the Restore Plus! CD set, HP Backup and Recovery Manager can be used to back up data and system files to the hard drive, to network drives, or to removable media, such as CDs, DVDs, or flash media.
Page 30: Remote System Installation
To initiate Remote System Installation, press appears in the lower-right corner of the HP logo screen when the computer is booting up. Follow the instructions on the screen to continue the process. The default boot order is a BIOS configuration setting that can be changed to always attempt to PXE boot.
Page 31: Hp System Software Manager
Management Interface (MS WMI), Web-Based Enterprise Management (WBEM), System Management BIOS (SMBIOS), and Advanced Configuration and Power Interface (ACPI). HP CMI is a foundation technology utilized in HP Client Management Solutions. With HP CMI, HP gives you flexibility in choosing how you manage your HP client computers.
Page 32: Hp Protecttools Security Manager
● Diagnostics—remotely run & view reports on HP desktop, notebook, and workstation models ● System Health Scan—check for known hardware issues in your installed base of HP client systems ● Active Chat—connect to HP customer support to resolve issues ●...
Page 33: Hp Client Foundation Suite
● Altiris AuditExpress For more information on HP Client Management Premium Suite, visit www.hp.com/go/easydeploy. HP Client Foundation Suite The HP Client Foundation Suite (HP CFS) is designed for organizations wanting essential client management functionality. It combines: ● HP Client Manager ●...
Page 34: Rom Flash
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 35: Remote Rom Flash
Enabling the system administrator to perform this task remotely on multiple computers results in a consistent deployment of, and greater control over, HP PC BIOS images over the network. It also results in greater productivity and lower total cost of ownership.
Page 36: Replicating The Setup
This allows for faster, more consistent configuration of multiple computers. NOTE: Both procedures require a diskette drive or a supported USB flash media device, such as an HP Drive Key. Copying to Single Computer CAUTION: A setup configuration is model-specific. File system corruption may result if source and target computers are not the same model.
Page 37: Copying To Multiple Computers
Copying to Single Computer on page Supported USB Flash Media Device when the monitor light turns green to enter tap//welcome.hp.com/support/files Replicating the Setup 30). and enter...
Page 38: Creating A Bootable Device
Creating a Bootable Device Supported USB Flash Media 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...
Page 39: Unsupported Usb Flash Media Device
If your bootable DOS diskette contains SYS.COM, go to step 8. Otherwise, go to step 9. At the A:\ prompt, enter SYS x: where x represents the drive letter noted above. CAUTION: 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 40 6. Put the SATA controller on its original IRQ. Save the changes and exit. The computer will boot to the USB flash media device as drive C. Chapter 4 Desktop Management The power cord MUST be unplugged. Enter to bypass the title screen, if necessary.
Page 41: Dual-State Power Button
HP has made the task of locating, accessing, evaluating, and installing the latest support software easier. You can download the software from http://www.hp.com/support.
Page 42: Industry Standards
(For more information, refer to the HP ProtectTools Security Manager Guide at www.hp.com.) Security features such as HP Embedded Security for ProtectTools, the Smart Cover Sensor and the Smart Cover Lock, available on some models, help to prevent unauthorized access to the internal components of the personal computer.
Page 43 ● Enable/disable the Embedded Security device. ● Reset the device to Factory Settings. This feature is supported on some models only. See the HP ProtectTools Security Manager Guide at www.hp.com Enables/disables serial ports, parallel port, front USB ports, system audio, network controllers (some models), and SCSI controllers (some models).
Page 44: Password Security
Establishing a Setup Password Using Computer Setup If the system is equipped with an embedded security device, refer to the HP ProtectTools Security Manager Guide at www.hp.com. Establishing a setup password through Computer Setup prevents reconsideration of the computer (use of the Computer Setup (F10) utility) until the password is entered.
Page 45: Establishing A Power-On Password Using Computer Setup
Entering a Setup Password If the system is equipped with an embedded security device, refer to the HP ProtectTools Security Manager Guide at www.hp.com.
Page 46: Changing A Power-On Or Setup Password
Changing a Power-On or Setup Password If the system is equipped with an embedded security device, refer to the HP ProtectTools Security Manager Guide at www.hp.com.
Page 47: National Keyboard Delimiter Characters
If you forget the password, you cannot access the computer. Refer to the Troubleshooting Guide on the Documentation and Diagnostics CD for instructions on clearing passwords. If the system is equipped with an embedded security device, refer to the HP ProtectTools Security Manager Guide at www.hp.com.
Page 48: Using Drivelock
DriveLock. Since the initial configuration of DriveLock is typically performed by a system administrator, a master password should be set first. HP encourages system administrators to set a master password whether they plan to enable DriveLock or keep it disabled. This will give the administrator the ability to modify DriveLock settings if the drive is locked in the future.
Page 49: Setting The Smart Cover Sensor Protection 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. Computers ship with the Smart Cover Lock in the unlocked position.
Page 50: Unlocking The Smart Cover Lock
Forgotten password CAUTION: The Smart Cover FailSafe Key is a specialized tool available from HP. Be prepared; order this key before you need oneat an authorized reseller. To obtain the FailSafe Key, call the appropriate number listed in the warranty.
Page 51: Fingerprint Identification Technology
If the computer is connected to a network managed by HP Client Manager, the computer sends a fault notice to the network management application. With HP Client Manager Software, you can also remotely schedule diagnostics to automatically run on all managed PCs and create a summary report of failed tests.
Page 52 Chapter 4 Desktop Management ENWW...
Page 53: Serial And Parallel Ata Drive Guidelines And Features
Data transfer rate 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.
Page 54: Sata Power Cable
Pin Number P5** P6** *P2 and P3 differential signal pair **P5 and P6 differential signal pair SATA Power Cable Usage V3.3 V3.3 V3.3 Ground Ground Ground Chapter 5 Serial and Parallel ATA Drive Guidelines and Features Usage Device Plug Ground Ground Transmit data Transmit data...
Page 55: Pata Device Information
This model supports PATA drives. 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. The SMART drive tracks fault prediction and failure indication parameters such as reallocated sector count, spin retry count, and calibration retry count.
Page 56 Chapter 5 Serial and Parallel ATA Drive Guidelines and Features ENWW...
Page 57: 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 58: 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 59: 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 60 ● 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 61: Routine Care
● Never restrict the airflow into the computer by blocking any vents or air intakes. Do not place the keyboard, with the keyboard feet down, directly against the front of the desktop unit as this also restricts airflow. ●...
Page 62: Cleaning The Keyboard
To clean the computer case, follow the procedures described below: ● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab. ● For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth or swab dampened with clear water.
Page 63: Service Considerations
If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.
Page 64: Cables And Connectors
In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP, their authorized partners, or their agents. Chapter 6 Identifying the Chassis, Routine Care, and Disassembly Preparation This computer contains a lithium battery.
Page 65: Removal And Replacement Procedures - Microtower (Mt) Chassis
Removal and Replacement Procedures — Microtower (MT) 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 66: Access Panel
Access Panel Prepare the computer for disassembly CAUTION: turned off and that the power cord is disconnected from the electrical outlet. Disconnect the power cord from the computer and from the power source (1). Remove the two screws that secure the access panel to the computer chassis (2). Slide the access panel back about 6 mm (1/4 inch), then rotate the top of the panel away from the chassis (pivot on the bottom) and lift it off the unit (3).
Page 67: Front Bezel
Front Bezel Prepare the computer for disassembly Remove the access panel Press down on all three tabs (1) on the left side of the bezel then, rotate the bezel off the chassis (2), beginning with the left side and then the right side. To reinstall the front bezel, reverse the removal procedure.
Page 68: Front Drive Bezels
Front Drive Bezels Prepare the computer for disassembly Remove the access panel Remove the front bezel 5.25" Drive Bezel Blank While facing the inside of the front bezel, press the two retaining tabs on the right towards the outer edge of the bezel (1) and pull the bezel blank inwards (2) to remove it. To install a bezel blank, reverse the removal procedure.
Page 69 Removing a 3.5” Drive Bezel Blank While facing the inside of the front bezel, press outward on the retaining tabs on each side of the bezel blank (1) and pull the bezel blank inwards to remove it. NOTE: To install a 3.5” bezel blank, press the blank inward from the inside of the front bezel so that it snaps into place.
Page 70: Ddr2-Sdram Dimms
Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs). CAUTION: DDR and DDR2 memory modules are not interchangeable. DDR2-SDRAM DIMMs The memory sockets on the system board can be populated with up to two industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.
Page 71 CAUTION: When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the module. Prepare the computer for disassembly Remove the access panel and lay the computer down on its side to make it easier to work on. (Access Panel on page WARNING! components to cool before touching.
Page 72: Expansion Cards
Expansion Cards Expansion Slot Cover Lock Prepare the computer for disassembly Remove the access panel Lay the computer down on its side to make it easier to work on. On the rear of the computer, remove the screw that secures the slot cover lock in place (1) then, slide the slot cover lock up and away from the slots to remove it from the computer (2).
Page 73: Pci/Pcie Expansion Card
PCI/PCIe Expansion Card To remove an expansion card continue with step 1. To install an expansion card in an existing empty slot go to step 9. Prepare the computer for disassembly Remove the access panel Lay the computer down on its side to make it easier to work on. Remove the slot cover lock If you are installing an expansion card for the first time go to step 9.
Page 74 With the card aligned so the mounting bracket will fit firmly against the computer backwall, slide the expansion card into the expansion socket and press it firmly into place. NOTE: that the entire connector seats properly in the expansion card socket. Reinstall the slot cover lock and its retaining screw.
Page 75: 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 76: Cable Connections
Cable Connections Cable Power Supply Power Supply Power Supply Power Supply Power Supply Power Supply Power Supply Cable Diskette drive 1st SATA Hard drive 2nd SATA Hard drive ODD Data ODD Audio Heatsink fan Secondary system fan Front power on button Front I/O USB Speaker Front audio...
Page 77: Drive Positions
Drives The computer supports up to five drives that may be installed in various configurations. This Section describes the procedure for replacing or upgrading the storage drives. A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. CAUTION: device before removing the hard drive.
Page 78 5.25" Drive Prepare the computer for disassembly Remove the access panel Remove the front bezel Disconnect the power, data, and audio cables, as necessary, from the back of the drive. Remove the two screws that secure the drive in the drive cage (1). Slide the drive out of the drive cage, as shown in the illustration below (2).
Page 79 3.5” Drive If you are installing a device for the first time in the external 3.5” drive bay you will need to use a flat blade screwdriver to break out the metal shield. The 3.5” external drive bay may be populated with a diskette drive or a media card reader. The removal procedure is the same for both devices.
Page 80 NOTE: There are a total of eight extra guide/retainer screws on the front of the chassis behind the bezel. Four have Unified Standard (US) #6–32 standard threads and for have M3 metric threads. US screws are used for used for hard drives and have a silver finish. Metric screws are used for all other drives and have a black finish.
Page 81 Removing a 3.5” Hard Drive Prepare the computer for disassembly Remove the access panel Remove the front bezel Disconnect the power, and data cables from the back the drive. Remove the four retaining screws that secure the drive in the drive cage (1). Slide the drive out of the rear of the drive bay (2).
Page 82: Front I/O Panel Housing Assembly
Front I/O Panel Housing Assembly Prepare the computer for disassembly Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on Remove the front bezel Free the two cables from the cable tie that is attached to the chassis. Remove the screw (1) that secures the housing to the chassis and then rotate the housing away from the chassis and pull the assembly out of the chassis.
Page 83: Power Switch Assembly
Power Switch Assembly Prepare the computer for disassembly Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on Disconnect the braided cables from the system board. Free the braided cables from the cable tie that is attached to the chassis.
Page 84 Speaker Prepare the computer for disassembly Remove the access panel Remove the front bezel Disconnect the speaker cable from the system board. Free the cable from the cable tie that is attached to the chassis. Remove the screw that secures the speaker to the inside of the chassis (1) then, remove the speaker (2) by sliding it out of the retaining clips..
Page 85: System Fan
System Fan Prepare the computer for disassembly Remove the access panel Disconnect the cable that connects the system fan to the system board. Remove the screws that secure the fan to the chassis and remove the fan. To install the fan, reverse the removal procedures. NOTE: When installing the fan, make sure the wires leading from the fan are located near the P2 4–pin power connector on the system board.
Page 86 Heatsink Prepare the computer for disassembly Remove the access panel and lay the computer down on its side to make it easier to work on. (Access Panel on page Disconnect the heatsink control cable from the system board. Loosen the four captive screws that secure the heatsink to the system board. Lift the heatsink from atop the processor and set it on its side to keep from contaminating the work area with thermal grease.
Page 87 Processor Prepare the computer for disassembly Remove the access panel and lay the computer down on its side to make it easier to work on. (Access Panel on page Disconnect the heatsink control cable from the system board and remove the heatsink. on page 80 Rotate the processor locking lever to its full open position (1).
Page 88 NOTE: ROM to ensure that the latest version of the BIOS is being used on the computer. The latest system ROM BIOS can be found on the Web at: http:\\h18000.www1.hp.com/support/files. Chapter 7 Removal and Replacement Procedures— Microtower (MT) Chassis Heatsink retaining screws should be tightened in diagonally opposite pairs (as...
Page 89: System Board
After installing a new system board, always update the system ROM to ensure that the latest version of the BIOS is being used on the computer. The latest system ROM BIOS can be found on the Web at: http:\\h18000.www1.hp.com/support/files. ENWW (Preparation for Disassembly on page panel.(Access Panel on page...
Page 90 Batteries, battery packs, and accumulators should not be disposed of together with the general household waste. In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP/Compaq, their authorized partners, or their agents.
Page 91: Type 1 Battery Holder
Type 1 Battery Holder Lift the battery out of its 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. 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.
Page 92: Type 2 Battery Holder
Type 2 Battery Holder To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery. When the battery pops up, lift it out (1). To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up (2).
Page 93: Type 3 Battery Holder
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. Replace the computer access panel. 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.
Page 94: Power Supply
Power Supply WARNING! an active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and/or the AC outlet before opening the computer. Prepare the computer for disassembly Remove the access panel Disconnect all power cables from the mass storage devices and from the system board.
Page 95: 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 Mouse Connector and Icon Ethernet BNC Connector and Icon ENWW Signal Data...
Page 96: Ethernet Aui
Ethernet RJ-45 Connector and Icon Ethernet AUI Connector and Icon Signal Ground Negative AUI Differential Collision Positive AUI Differential Collision Negative AUI Differential Transmit Positive AUI Differential Transmit Ground Ground Negative AUI Differential Receive Appendix A Connector Pin Assignments Signal (+) Transmit Data (-) Transmit Data (+) Receive Data...
Page 97: Parallel Interface
Parallel Interface Connector and Icon Signal Strobe Data Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 Data Bit 5 Data Bit 6 Data Bit 7 Serial Interface, Powered and Non-Powered Connector and Icon Connector and Icon ENWW Signal Acknowledge...
Page 98: Line-In Audio
Microphone Connector and Icon (1/8” miniphone) 1 2 3 Headphone Connector and Icon (1/8” miniphone) 1 2 3 Line-in Audio Connector and Icon (1/8” miniphone) 1 2 3 Line-out Audio Connector and Icon (1/8” miniphone) 1 2 3 External Infrared Transceiver Connector and Icon Appendix A Connector Pin Assignments Signal...
Page 99 Monitor Connector and Icon Signal Red Analog Green Analog Blue Analog Not used Ground Ground Ground Ground ENWW Transmit Receive Ground Mode Not Used Not Used Not Used Signal +5V (fused) Ground Not used DDC Serial Data Horizontal Sync Vertical Sync DDC Serial Clock Monitor...
Page 100: Ata/Atapi (Ide) Standard Drive Cable
ATA/ATAPI (IDE) Standard Drive Cable Connector Signal Reset Ground DD10 DD11 DD12 DD13 24-Pin Power Connector Signal +3.3V +3.3V Appendix A Connector Pin Assignments Signal DD14 DD15 Ground (Key) DMARQ Ground DIOW Ground DIOR Ground IORDY CSEL Signal +5 Vaux +12V +12V +3.3V...
Page 101: Pin Microfit Power
24-Pin MicroFit Power Connector Signal +5 Vaux PS_ON 4-Pin Power (for CPU) Connector and Icon 6-Pin Power (for CPU) Connector and Icon ENWW Signal PWRGD +3.3V +3.3V Tach Fan-CMD Signal Signal +12V +5V Sense +3.3V Sense +3.3V +3.3V +3.3V -12V Signal +12V CPU -12V CPU...
Page 102: Sata Data And Power
SATA Data and Power Drive Connector Signal Ground Ground V 12 *S = Data, P = Power PCI Express x1, x4, x8, and x16 PCI Express Connector Pin A Signal PRSNT1 +12V +12V JTAG2 PERn(2) PERp3 PERn3 Appendix A Connector Pin Assignments Signal V 3.3 Ground...
Page 103 PERp8 PERN8 PERp14 PERn14 PERp15 Pin B information is on the next page 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 104: Dvi Connector
PETn8 PETp9 PETn9 PETp15 PETn15 Pin B information is on the next page 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 DVI Connector Connector and Icon Signal T.M.D.S.
Page 105 T.M.D.S. Data3– T.M.D.S. Clock- ENWW DVI Connector...
Page 106 100 Appendix A Connector Pin Assignments ENWW...
Page 107: 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 108 Country Australia (1) Austria (1) Belgium (1) Canada (2) Denmark (1) Finland (1) France (1) Germany (1) The flexible cord must be Type HO5VV-F, 3-conductor, 0.75mm and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it will be used. The flexible cord must be Type SVT or equivalent, No.
Page 109: 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 110: 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 111 Run Computer Setup or Windows utilities. Make sure the memory module(s) are installed properly. If third-party memory has been added, test using HP-only memory. Verify proper memory module type. Run Computer Setup or Windows utilities. Ensure memory modules are correctly installed.
Page 112: Appendix C Post Error Messages
Table C-1 Numeric Codes and Text Messages (continued) Control panel message 303-Keyboard Controller Error 304-Keyboard or System Unit Error 404-Parallel Port Address Conflict Detected 410-Audio Interrupt Conflict 411-Network Interface Card Interrupt Conflict IRQ address conflicts with another device. 501-Display Adapter Failure 510-Flash Screen Image Corrupted 511-CPU, CPUA, or CPUB Fan not Detected CPU fan is not connected or may have 512-Chassis, Rear Chassis, or Front Chassis...
Page 113 Table C-1 Numeric Codes and Text Messages (continued) Control panel message 601-Diskette Controller Error 605-Diskette Drive Type Error 610-External Storage Device Failure 611-Primary Floppy Port Address Assignment Conflict 660-Display cache is detected unreliable 912-Computer Cover Has Been Removed Since Last System Startup 917-Front Audio Not Connected 918-Front USB Not Connected 921-Device in PCI Express slot failed to...
Page 114 Drive Protection System test under Storage > DPS Self-test. Apply hard drive firmware patch if applicable. (Available at http://www.hp.com/support.) Back up contents and replace hard drive. Ensure SATA connectors are used in ascending order. For one device, use SATA 0.
Page 115 Run Computer Setup. If Setup already has data in the field or will not allow the serial number to be entered, download from http://www.hp.com and run SP5572.EXE (SNZERO.EXE). Run Computer Setup and try to enter serial number under Security, System ID, then save changes.
Page 116 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Parity Check 2 System will not boot without fan 110 Appendix C POST Error Messages Description Parity RAM failure. CPU fan not installed or disconnected in VSFF chassis. Recommended action Ensure that none of the keys are depressed.
Page 117: Interpreting Post Diagnostic Front Panel Leds
Suspend mode. Pre-video memory error. Reseat DIMMs. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. Interpreting POST Diagnostic Front Panel LEDs 111 WARNING! Rotating fan blades can cause serious bodily harm.
Page 118 Activity Green Power LED flashes six times, once every second, followed by a two second pause. Green Power LED flashes eight times, once every second, followed by a two second pause. System does not power on and LEDs are not flashing. 112 Appendix C POST Error Messages Possible Cause Recommended Action...
Page 119: Troubleshooting Without Diagnostics
If you recently added new hardware, remove the hardware and see if the computer functions properly. ENWW Misuse of the computer or failure to establish a safe and comfortable work HP Insight Diagnostics on page 15 for more information. POST Error Messages http://www.hp.com/...
Page 120: Helpful Hints
Remove any software that was recently installed. ● Restore the system to a Recovery Point created in HP Backup and Recovery Manager or run the Restore Plus! CD. For more information on using HP Backup and Recovery Manager, refer to the HP Backup and Recovery Manager User Guide by selecting Start >...
Page 121 ● Press and hold any key. If the system beeps, then the keyboard should be operating correctly. ● Check all cable connections for loose connections or incorrect connections. ● 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.
Page 122: 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! to the system board.
Page 123 Table D-1 Solving General Problems (continued) Cursor will not move using the arrow keys on the keypad. Cause Num Lock key may be on. There is no sound or sound volume is too low. Cause System volume may be set low or muted. The audio device may be connected to the wrong jack on the rear of the computer or the jack has been retasked to perform a different function.
Page 124 Table D-1 Solving General Problems (continued) Poor performance is experienced. Cause Too many applications running. Some software applications, especially games, are stressful on the graphics subsystem Cause unknown. Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times.
Page 125 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 ENWW Solution Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on green then: Check that the unit is plugged into a working AC outlet.
Page 126: Solving Power Problems
Solving Power Problems Common causes and solutions for power problems are listed in the following table. Table D-2 Solving Power Problems Power supply shuts down intermittently. Cause Voltage selector switch on rear of computer chassis (some models) not switched to correct line voltage (115V or 230V). Power supply will not turn on because of internal power supply fault.
Page 127: Solving Diskette Problems
Solving Diskette Problems Common causes and solutions for diskette problems are listed in the following table. NOTE: You may need to reconfigure the computer when you add or remove hardware, such as an additional diskette drive. See instructions. Table D-3 Solving Diskette Problems Diskette drive light stays on.
Page 128 Table D-3 Solving Diskette Problems (continued) Cannot format diskette. Cause Invalid media reported. Disk may be write-protected. Legacy diskette writes are disabled in Computer Setup. A problem has occurred with a disk transaction. Cause The directory structure is bad, or there is a problem with a file. In Windows XP, right-click Start, click Explore, and select a Diskette drive cannot read a diskette.
Page 129 Table D-3 Solving Diskette Problems (continued) Cannot Boot to Diskette. Cause Network server mode is enabled in Computer Setup. ENWW Solution NOTE: Both steps should be used as the Removable Media Boot function in Computer Setup overrides the Boot Order enable command. Run Computer Setup and disable Network Server Mode in Security >...
Page 130: Solving Hard Drive Problems
Solving Hard Drive Problems Table D-4 Solving Hard Drive Problems Hard drive error occurs. Cause Hard disk has bad sectors or has failed. Disk transaction problem. Cause Either the directory structure is bad or there is a problem with a file. Drive not found (identified).
Page 131 If FAT32 formatting, the hard drive cannot be accessed. Install system files for the appropriate operating system. Restore the system to a recovery point in HP Backup and Recovery Manager. Refer to the HP Backup and Recovery Manager User Guide in the Windows Start menu for more information.
Page 132: Solving Media Card Reader Problems
Solving Media Card Reader Problems Table D-5 Solving Media Card Reader Problems Media card will not work in a digital camera after formatting it in Microsoft Windows XP. Cause By default, Windows XP will format any media card with a capacity greater than 32MB with the FAT32 format.
Page 133 Cause The media card reader is connected to the computer via the PCI card, which is not supported on the HP Desktop BIOS. After installing the media card reader, the front USB ports on the computer do not work. Cause The USB cable for the front USB ports was disconnected so that the system board connector could be used for the reader.
Page 134: Solving Display Problems
Reflash the system ROM with the latest BIOS image. See the “Boot Block Emergency Recovery Mode” section of the Desktop Management Guide on the Documentation and Diagnostics CD for more information. Be sure that the monitor can accept the same horizontal scan rate as the resolution chosen.
Page 135 ENWW Solution Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. Solution For systems with a graphics card: Reseat the graphics card. Power on the system.
Page 136 Table D-6 Solving Display Problems (continued) Blurry video or requested resolution cannot be set. Cause If the graphics controller was upgraded, the correct graphics drivers may not be loaded. Monitor is not capable of displaying requested resolution. Graphics card is bad. The picture is broken up, rolls, jitters, or flashes.
Page 137 To download a SoftPaq that will assist you with the synchronization, go to the following Web site, select the appropriate monitor, and download either SP32347 or SP32202: http://www.hp.com/support Reseat the graphics card. Replace the graphics card. Solution symbol.
Page 138: Solving Audio Problems
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. Table D-7 Solving Audio Problems Sound cuts in and out. Cause Processor resources are being used by other open applications.
Page 139 Table D-7 Solving Audio Problems (continued) Sound does not come out of the speaker or headphones. Cause Headphones or devices connected to the line-out connector mute the internal speaker. Volume is muted. Computer is in standby mode. Sound from headphones is not clear or muffled. Cause Headphones are plugged into the rear audio output connector.
Page 140: Solving Printer Problems
Solving Printer Problems If you encounter printer problems, see the documentation that came with the printer and to the common causes and solutions listed in the following table. Table D-8 Solving Printer Problems Printer will not print. Cause Printer is not turned on and online. The correct printer drivers for the application are not installed.
Page 141: Solving Keyboard And Mouse Problems
Mouse connector is not properly plugged into the back of the computer. ENWW Solution On the Windows Desktop, click Start. Click Shut Down. The Shut Down Windows dialog box is displayed. Select Shut down. After the shutdown is complete, reconnect the keyboard to the back of the computer and restart the computer.
Page 142 Table D-10 Solving Mouse Problems (continued) Mouse does not respond to movement or is too slow. Cause Program in use has stopped responding to commands. Mouse may need cleaning. Mouse may need repair. Wireless device error. Computer is in standby mode. Mouse will only move vertically, horizontally, or movement is jerky.
Page 143: Solving Hardware Installation Problems
Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, Windows XP automatically recognizes the device and configures the computer. If you install a non–plug and play device, you must reconfigure the computer after completing installation of the new hardware.
Page 144 DIMM module. Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. Solution For systems with a graphics card: Reseat the graphics card.
Page 145: Solving Network Problems
Solving Network Problems Some common causes and solutions for network problems are listed in the following table. These guidelines do not discuss the process of debugging the network cabling. Table D-12 Solving Network Problems Wake-on-LAN feature is not functioning. Cause Wake-on-LAN is not enabled.
Page 146 Table D-12 Solving Network Problems (continued) Network status link light never flashes. NOTE: The network status light is supposed to flash when there is network activity. Cause Network driver is not properly loaded. System cannot autosense the network. Diagnostics reports a failure. Cause The cable is not securely connected.
Page 147 Install a working, industry-standard NIC, or change the boot sequence to boot from another source. Solution Verify Network Connectivity, that a DHCP Server is present, and that the Remote System Installation Server contains the NIC drivers for your NIC. Solution Contact HP. Solving Network Problems 141...
Page 148: Solving Memory Problems
DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM module. For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the computer will not boot the operating system.
Page 149 Memory is installed incorrectly or is bad. ENWW Solution Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. Solving Memory Problems 143...
Page 150: Solving Processor Problems
Solving Processor Problems If you encounter processor problems, common causes and solutions are listed in the following table. Table D-14 Solving Processor Problems Poor performance is experienced. Cause Processor is hot. Power LED flashes Red three times, once every second, followed by a two second pause. Cause Processor is not seated properly or not installed.
Page 151: Solving Cd-Rom And Dvd Problems
Solving CD-ROM and DVD Problems If you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the following table or to the documentation that came with the optional device. Table D-15 Solving CD-ROM and DVD Problems System will not boot from CD-ROM or DVD drive.
Page 152 Table D-15 Solving CD-ROM and DVD Problems (continued) Movie will not play in the DVD drive. Cause Movie may be regionalized for a different country. Decoder software is not installed. Damaged media. Movie rating locked out by parental lock. Media installed upside down. Cannot eject compact disc (tray-load unit).
Page 153 USDT computer boots too slow after removing a CD-ROM or DVD drive. Cause The system is searching for the drive during boot because the drive cable is still attached to the system board. ENWW Solution Disconnect the drive cable from the system board. Solving CD-ROM and DVD Problems 147...
Page 154: Solving Drive Key Problems
Solving Drive Key Problems If you encounter Drive Key problems, common causes and solutions are listed in the following table. Table D-16 Solving Drive Key Problems USB Drive Key is not seen as a drive letter in Windows XP. Cause The drive letter after the last physical drive is not available.
Page 155: 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 Device is not properly connected.
Page 156: Solving Internet Access Problems
Solving Internet Access Problems If you encounter Internet access problems, consult your Internet Service Provider (ISP) or refer to the common causes and solutions listed in the following table. Table D-18 Solving Internet Access Problems Unable to connect to the Internet. Cause Internet Service Provider (ISP) account is not set up properly.
Page 157 Table D-18 Solving Internet Access Problems (continued) Internet takes too long to download Web sites. Cause ENWW Solution Windows XP Select Start > Control Panel. Double-click System. Click the Hardware tab. In the Device Manager area, click the Device Manager button.
Page 158: Solving Software Problems
NOTE: HP Backup and Recovery Manager can be used to restore the software to a recovery point or to restore the system to its factory configuration. Refer to Manager on page 2 If you encounter software problems, see the applicable solutions listed in the following table.
Page 159 Boot Block Emergency Recovery Mode 29 boot problems 147 bootable device creating 32 DiskOnKey 32, 33 HP Drive Key 32, 33 USB flash media device 32 booting options Full Boot 103 Quick Boot 103 cable connections 70 cable lock provision 44...
Page 160 66 FailSafe Key caution 44 ordering 44 fan, power supply 57 Fault Notification and Recovery HP Client Manager 45 fingerprint identification technology 45 flashing LEDs 111 front bezel removal and replacement 61 front drive bezel 62...
Page 161 ordering FailSafe Key 44 overheating, prevention 55 parallel interface pin assignments 91 password changing 40 clearing 41 deleting 40 power-on 39 security 38 setup 38, 39 PC deployment 21 PCI Express pin assignments 96 PCN (Proactive Change Notification) 28 POST error messages 103 power button configuring 35 dual-state 35...
Page 162 Wake-on-LAN feature 139 Web sites BIOS download 28 Fingerprint Identification Technology 45 HP Client Foundation Suite 27 HP Client Foundation Suite and Client Premium Suite 22 HP Client Management Premium Suite 27 HP Client Manager 26 HP OpenView Client Configuration Manager 27...

HP Compaq dx2250 Service & Reference Manual

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