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HP Compaq dx6100 MT Reference Manual

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service reference guide
HP Compaq Business Desktop dx6100 Series
3rd Edition
This document provides information on the removal and replacement of all
parts as well as information on troubleshooting, Desktop Management, setup
utilities, SATA drives, safety, routine care, connector pin assignments, POST
error messages, and diagnostic indicator lights.
Document Part Number 361293-003

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Summary of Contents for HP Compaq dx6100 MT

  • Page 1 HP Compaq Business Desktop dx6100 Series 3rd Edition This document provides information on the removal and replacement of all parts as well as information on troubleshooting, Desktop Management, setup utilities, SATA drives, safety, routine care, connector pin assignments, POST error messages, and diagnostic indicator lights.
  • Page 3 Service Reference Guide HP Compaq Business Desktop dx6100 Series 3rd Edition Document Part Number: 361293-003 First Edition, July 2004 Third Edition, June 2006...

  • Page 4: Service Reference Guide

    Intel is a trademark of Intel 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. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

  • Page 5: Table Of Contents

    3.3.1 HP Client Manager Software ........
  • Page 6 Contents 3.4 Asset Tracking and Security ........... 3–13 3.4.1 Password Security .
  • Page 7 5.4.2 Cleaning the Computer Case ..........5–6 5.4.3 Cleaning the Keyboard.
  • Page 8 Contents 7 Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.1 Preparation for Disassembly ........... . 7–1 7.2 Unlocking the Smart Cover Lock .
  • Page 9 Contents A Connector Pin Assignments B Power Cord Set Requirements C POST Error Messages D Troubleshooting Without Diagnostics E System Board and Riser Board Reference Designators F Memory Index Service Reference Guide, dx6100 361293-003...
  • Page 10 Contents viii 361293-003 Service Reference Guide, dx6100...

  • Page 11: Installing The Operating System

    If the computer has an optical CD-RW drive, install the appropriate application to be able to write to the drive. To install the application, double-click the Setup Software icon on the desktop or the application launcher and select the Easy CD Creator and Direct CD option when prompted.

  • Page 12: Transferring Files And Settings

    HP Software The Microsoft Windows XP Professional operating system is preinstalled on the computer and will be configured automatically the first time the computer is turned on. The following HP software may also be installed at that time on selected models: ■...
  • Page 13 ■ Support Software CD www.hp.com ■ HP Web site at ■ Restore Plus! CD, which is supplied with many HP models ✎ Additional HP software may be required in certain situations. Service Reference Guide, dx6100 Installing the Operating System 361293-003...
  • Page 14 Installing the Operating System 1–4 361293-003 Service Reference Guide, dx6100...

  • Page 15: Setup Utilities And Diagnostics Features

    Establish and manage energy-saving timeouts. ✎ All features identified in this chapter may not be available on all HP products. Power-On Self-Test (POST) POST is a series of diagnostic tests that runs automatically when the system is turned on. POST checks the following items to ensure that the computer system is functioning properly: ■...

  • Page 16: Computer Setup Utilities

    Setup Utilities and Diagnostics Features 2.2 Computer Setup Utilities Use Computer Setup Utilities (F10) to: ■ 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 17: Using Computer Setup (F10) Utilities

    2.2.1 Using Computer Setup (F10) Utilities Computer Setup can be accessed only by turning on the computer or restarting the system. To access the Computer Setup Utilities menu, complete the following steps: 1. Turn on or restart the computer. If you are in Windows, click Start >Shut Down >Restart. 2.

  • Page 18: Computer Setup Menu

    Setup Utilities and Diagnostics Features 2.2.2 Computer Setup Menu Heading Option File System Information About Set Time and Date Replicated Setup Default Setup Apply Defaults and Exit Ignore Changes and Exit Save Changes and Exit Storage Device Configuration ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2–4 Description Lists:...
  • Page 19 Heading Option Storage Device (continued) Configuration (continued) ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dx6100 Description Drive Emulation Allows you to select a drive emulation type for a certain storage device.
  • Page 20 Setup Utilities and Diagnostics Features Heading Option Storage Storage Options (continued) DPS Self-Test ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2–6 Description Removable Media Boot Enables/disables ability to boot the system from removable media. Legacy Diskette Write Enables/disables ability to write data to legacy diskettes.
  • Page 21 Setup Password requires that the setup password be entered to boot the computer if the sensor detects that the cover has been removed. This feature is supported on select models only. See the Desktop Management Guide on the Documentation CD for more information.
  • Page 22 Allows you to: • Enable/disable the Embedded Security device. • Reset the device to Factory Settings. This feature is supported on select models only. See the Desktop Management Guide on the Documentation CD for more information. Enables/disables serial ports, parallel port, front USB ports, system...
  • Page 23 Heading Option Security Master Boot Record Security* (continued) Save Master Boot Record* Restore Master Boot Record* ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dx6100 Description Allows you to enable or disable Master Boot Record (MBR) Security.
  • Page 24 Setup Utilities and Diagnostics Features Heading Option Power OS Power Management Hardware Power Management Thermal ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2–10 Description • Runtime Power Management - Enable/Disable. Allows certain operating systems to reduce processor voltage and frequency when the current software load does not require the full capabilities of the processor.
  • Page 25 Heading Option Advanced* Power-On Options *For advanced users only ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dx6100 Description Allows you to set: • POST mode (QuickBoot, FullBoot, or FullBoot every 1-30 days). •...
  • Page 26 Setup Utilities and Diagnostics Features Heading Option Advanced* Power-On Options (continued) (continued) *For advanced users only BIOS Power-On Onboard Devices PCI Devices Bus Options* ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2–12 Description Allows you to set: (continued) •...
  • Page 27 Heading Option Advanced* Device options (continued) *For advanced users only PCI VGA Configuration ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dx6100 Description Allows you to set: • Printer mode (bi-directional, EPP & ECP, output only). •...

  • Page 28: Diagnostics For Windows

    Running tests is optional but recommended after installing or connecting a new device. Third party devices not supported by HP may not be detected by Diagnostics for Windows. Save, print, or display the information generated by the utility.

  • Page 29: Detecting Diagnostics For Windows

    In either Windows XP or Windows 2000, if the Setup Software/Software Setup icon is not on the Desktop or in the Start menu, run the Setup program from the C:\CPQAPPS\DIAGS directory or select Start > Run and type the following in the command line: 3.

  • Page 30: Using Categories In Diagnostics For Windows

    2.3.3 Using Categories in Diagnostics for Windows To use categories: 1. Click Start > HP Information Center > Diagnostics for Windows. You can also select the Diagnostics for Windows icon, located in the Control Panel. The screen displays the overview of the computer hardware and software.

  • Page 31: Running Diagnostic Tests In Diagnostics For Windows

    2.3.4 Running Diagnostic Tests in Diagnostics for Windows To run diagnostic tests: 1. Click Start > HP Information Center > Diagnostics for Windows. Alternately, you can access Diagnostics for Windows via the control panel. The screen displays the overview of the computer hardware and software. Five tabs are displayed below the row of icons: Overview, Test, Status, Log, and Error.

  • Page 32: Configuration Record

    Setup Utilities and Diagnostics Features 4. Select Interactive Mode or Unattended Mode. In Interactive Mode, the diagnostic software will prompt you for input during tests that require it. Some tests require interaction and will display errors or halt testing if selected in conjunction with Unattended Mode. ❏...

  • Page 33: Installing Configuration Record

    Diagnostics for Windows. 2.4.2 Running Configuration Record To run this program: 1. Click Start > HP Information Center > Configuration Record. Alternately, you can access Diagnostics for Windows via the control panel. ✎ The Configuration Record utility has two view options: Show Changed Items Only and Show All.
  • Page 34 Setup Utilities and Diagnostics Features 2–20 361293-003 Service Reference Guide, dx6100...

  • Page 35: Desktop Management

    Support for specific features described in this guide may vary by model or software version. Initial Configuration and Deployment HP computers come with a preinstalled system software image. After a brief software “unbundling” process, the computer is ready to be used.

  • Page 36: Remote System Installation

    Configuring the system BIOS settings. To initiate Remote System Installation, press message appears in the lower-right corner of the HP logo screen. 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 37: Altiris Client Management Solutions

    3.3.2 Altiris Client Management Solutions HP and Altiris have partnered to provide comprehensive, tightly integrated systems management solutions to reduce the cost of owning HP client PCs. HP Client Manager Software is the foundation for additional Altiris Client Management Solutions that address: ■...

  • Page 38: Proactive Change Notification (Pcn)

    HP PC ROM images over the network. It also results in greater productivity and lower total cost of ownership.

  • Page 39: Hpqflash

    A rising tone series of beeps also signals successful completion. 5. Remove the diskette or CD and turn the power off. 6. Turn the power on again to restart the computer. Service Reference Guide, dx6100 http://www.hp.com/support/files 361293-003 Desktop Management and enter the name 3–5...

  • Page 40: 10Replicating The Setup

    This allows for faster, more consistent configuration of multiple computers. ✎ 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.

  • Page 41: Copying To Multiple Computers

    For example, do not copy the setup configuration from a dc7100 Ultra-Slim Desktop to a dx6100 Slim Tower. This method takes a little longer to prepare the configuration diskette or USB flash media device, but copying the configuration to target computers is significantly faster.

  • Page 42: Creating A Bootable Device

    Creating a Bootable Device Supported USB Flash Media Device Supported devices, such as an HP Drive Key or a Disk On Key, have a preinstalled image to simplify the process of making them bootable. If the USB flash media device being used does not have this image, use the procedure later in this section (see Device”...
  • Page 43 ❏ 256MB HP Drive Key ❏ 256MB Disk On Key ■ A bootable DOS diskette with the FDISK and SYS programs. If SYS is not available, FORMAT may be used, but all existing files on the USB flash media device will be lost.

  • Page 44: Unsupported Usb Flash Media Device

    ❏ HP Compaq Business Desktop dc7100 series ❏ HP Compaq Business Desktop dx6100 series ❏ HP Compaq Business Desktop d530 Series—Ultra-Slim Desktop, Small Form Factor, or Convertible Minitower ❏ Compaq Evo D510 Ultra-Slim Desktop ❏ Compaq Evo D510 Convertible Minitower/Small Form Factor Depending on the individual BIOS, future systems may also support booting to a USB flash media device.
  • Page 45 FORMAT C: /S Enter and press to bypass the title screen, if necessary. 361293-003 Desktop Management key until you enter Computer key. Ctrl . Format will format the USB flash key until you enter Computer...

  • Page 46: 11Dual-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 the latest device drivers, utilities, and flashable ROM images needed to run the latest Microsoft Windows operating system on the HP computer.

  • Page 47: Asset Tracking And Security

    HP also offers several solutions for controlling access to valuable components and information. ProtectTools Embedded Security, if installed, p system integrity and authenticates third-party users attempting system access.
  • Page 48 • Enable/disable the Embedded Security device. • Reset the device to Factory Settings. This feature is supported on select models only. See HP ProtectTools Embedded Security Guide, on the Documentation CD for more information. Enables/disables serial ports, parallel port, front USB ports, system audio, network controllers (some models), MultiBay devices (some models), and SCSI controllers (some models).
  • Page 49 This selection will only appear when at least one MultiBay drive that supports the DriveLock feature is attached to the system. See the Desktop Management Guide on the Documentation CD for more information. Allows you to enable or disable Master Boot Record (MBR) Security.
  • Page 50 Detects when memory For information on enabling modules have been added, Memory Change Alerts, moved, or removed; notifies refer to the online Desktop user and system administrator. Management Guide on the Documentation CD. Inhibits access to the interior Install a cable lock to secure...

  • Page 51: Password Security

    3.4.2 Establishing a Setup Password Using Computer Setup If the system is equipped with an embedded security device, refer to HP ProtectTools Embedded Security Guide, on the Documentation CD. Establishing a setup password through Computer Setup prevents reconfiguration of the computer (use of the Computer Setup (F10) utility) until the password is entered.

  • Page 52: Entering A Setup Password

    Entering a Setup Password If the system is equipped with an embedded security device, refer to HP ProtectTools Embedded Security Guide, on the Documentation CD.

  • Page 53: Deleting A Power-On Or Setup Password

    Computer Setup. Deleting a Power-On or Setup Password If the system is equipped with an embedded security device, refer to HP ProtectTools Embedded Security Guide, on the Documentation CD. 1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart the Computer.

  • Page 54: Drivelock

    If you forget the password, you cannot access the computer. Refer to the Troubleshooting Guide on the Documentation CD for instructions on clearing passwords. If the system is equiped with an embedded security device, refer to HP ProtectTools Embedded Security Guide, on the Documentation CD.

  • Page 55: 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.

  • Page 56: Smart Cover Sensor

    4. Before exiting, select File > Save Changes and Exit. Smart Cover Lock The Smart Cover Lock is a software-controllable cover lock featured on select HP computers. This lock prevents unauthorized access to the internal components. Computers ship with the Smart Cover Lock in the unlocked position.

  • Page 57: Locking The Smart Cover Lock

    PC component failure (such as processor or power supply) ■ Forgotten password CAUTION: The Smart Cover FailSafe Key is a specialized tool available from HP. Be prepared; order Ä this key before you need one (Tamper-resistant wrench PN 166527-001 or tamper-resistant bits PN 166527-002).

  • Page 58: Master Boot Record Security

    Desktop Management 3.4.6 Master Boot Record Security The Master Boot Record (MBR) contains information needed to successfully boot from a disk and to access the data stored on the disk. Master Boot Record Security may prevent unintentional or malicious changes to the MBR, such as those caused by some computer viruses or by the incorrect use of certain disk utilities.

  • Page 59: Before You Partition Or Format The Current Bootable Disk

    3.4.9 Fingerprint Identification Technology Eliminating the need to enter user passwords, HP Fingerprint Identification Technology tightens network security, simplifies the login process, and reduces the costs associated with managing corporate networks. Affordably priced, it is not just for high-tech, high-security organizations anymore.

  • Page 60: Fault Notification And Recovery

    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 61: Serial And Parallel Ata Drive Guidelines And Features

    Serial and Parallel ATA Drive Guidelines and ✎ Serial ATA = SATA Parallel ATA = PATA HP does not support the use of PATA (IDE) hard drives when SATA hard drives are installed on the computer. SATA and PATA Device Information Characteristic...

  • Page 62: Ata Cables

    Serial and Parallel ATA Drive Guidelines and Features 4.2 ATA Cables 4.2.1 SATA Data Cable The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive. As shown in the table, each cable has 3 grounds, and 4 transmit/receive pins. SATA data cables are susceptible to damage if overflexed.

  • Page 63: Pata Data Cable

    4.2.3 PATA Data Cable Signal Reset Ground DD10 DD11 DD12 DD13 4.2.4 PATA Power Cable Usage +12 V Ground Ground +5 V Service Reference Guide, dx6100 Serial and Parallel ATA Drive Guidelines and Features Signal DD14 DD15 Ground (Key) DMARQ Ground DIOW Ground...

  • Page 64: Pata Cable Layout

    Serial and Parallel ATA Drive Guidelines and Features 4.2.5 PATA Cable Layout The faces of industry-standard cable connectors are color-coded for easy recognition: ■ System board connector = blue face ■ Device 0 connector = black face ■ Device 1 connector = gray face ✎...

  • Page 65: Pata Device Classes

    Each drive attached to a channel must have a drive designation. If a drive is attached to the Device 0 cable position and its cable-select jumper is present, the drive is designated as Device 0. Similarly, if a drive is attached to the Device 1 cable position and its cable-select jumper is present, the drive is designated as Device 1.

  • Page 66: Pata Attach Sequence Rules By Class Priority

    Serial and Parallel ATA Drive Guidelines and Features 4.3.2 PATA Attach Sequence Rules by Class Priority Drives should be attached in the sequence shown for optimum performance starting at position 1. Primary Channel* Secondary Channel *If there are three or more devices, two or more of which are hard drives, two hard drives should be attached to the primary channel first before following the General Attach Sequence Rule.

  • Page 67: Pata Attach Sequence Worksheet

    4.3.3 PATA Attach Sequence Worksheet Use the worksheet below for obtaining optimum system performance when setting up a computer with multiple drives. Use the General Attach Sequence Rule to determine the best drive installation sequence. Device Name Two examples of how to use the worksheet are: ■...
  • Page 68 Serial and Parallel ATA Drive Guidelines and Features Example 1: Three-Device Installation Sample A system has three devices: Ultra ATA-100 hard drive, CD-ROM drive, and a DVD drive. Using the Device Class Table in Section 4.3.1, the devices may be identified as: ■...

  • Page 69: Pata Additional Drive Application Notes

    Example 2: Four-Device Installation Sample A system has four devices: two Ultra ATA-100 hard drives, one DVD-CDR/W drive, and a ZIP-250 drive. Using the Device Class Table in Section 4.3.1, the devices may be reidentified as: ■ Ultra ATA-100 hard drive = Class 1 ■...

  • Page 70: Ata Smart Drives

    Serial and Parallel ATA Drive Guidelines and Features 4.4 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 71: Sata Bios

    4.6 SATA BIOS Windows 2000 and XP Enhanced Mode (default BIOS Setting) —Separate IDE controller • PATA Controller in Legacy Mode - Device 0 is accessible as Device 0 of PATA controller’s Primary Channel - Device 1 is accessible as Device 1of PATA controller’s Primary Channel •...

  • Page 72: Mixed Devices Boot And Drive Letter Ordering

    Serial and Parallel ATA Drive Guidelines and Features 4.7 Mixed Devices Boot and Drive Letter Ordering SATA Emulation* Separate IDE Controller (default). Used with Windows 2000 and XP. Separate IDE Controller. Used with Windows 2000 and XP. Combined with IDE Controller.

  • Page 73: Identifying The Chassis, Routine Care, And Disassembly Preparation

    Identifying the Chassis, Routine Care, and 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 Ä...

  • Page 74: Slim Tower (St)

    Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1.2 Slim Tower (ST) 5.2 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.

  • Page 75: Preventing Electrostatic Damage To Equipment

    ■ Static electricity increases as humidity decreases. Event Walking across carpet Walking across vinyl floor Motions of bench worker Removing DIPs* from plastic tube Removing DIPs* from vinyl tray Removing DIPs* from Styrofoam Removing bubble pack from PCB Packing PCBs in foam-lined box *These are then multi-packaged inside plastic tubes, trays, or Styrofoam.

  • Page 76: Grounding The Work Area

    Identifying the Chassis, Routine Care, and Disassembly Preparation ■ Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a maximum of one-megohm ± 10% resistance between the operator and ground.

  • Page 77: Operating Guidelines

    ■ 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 78: Cleaning The Computer Case

    Identifying the Chassis, Routine Care, and Disassembly Preparation 5.4.2 Cleaning the Computer Case Follow all safety precautions in Section 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. ■...

  • Page 79: Cleaning The Mouse

    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 80: Cables And Connectors

    Identifying the Chassis, Routine Care, and Disassembly Preparation 5.5.4 Cables and Connectors Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector.

  • Page 81: Removal And Replacement Procedures- Microtower (Mt) Chassis

    Removal and Replacement Procedures— 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. ✎ Not all features listed in this guide are available on all computers. Preparation for Disassembly Chapter 5, “Identifying the Chassis, Routine Care, and Disassembly Preparation,”...

  • Page 82: External Security Devices

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.2 External Security Devices 6.2.1 Installing a Cable Lock The cable lock may be used to secure the computer access panel to the chassis and, at the same time, secure the computer to a fixed object. 6–2 361293-002 Service Reference Guide, dx6100...

  • Page 83: Installing A Padlock

    6.2.2 Installing a Padlock A padlock may be used by itself to secure the access panel to the computer chassis. A padlock may also be used with a security cable to secure the computer to a fixed object. Service Reference Guide, dx6100 Removal and Replacement Procedures—...

  • Page 84: Access Panel

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.3 Access Panel 1. Prepare the computer for disassembly Microtower (MT) Chassis”). Ä CAUTION: Before removing the computer access panel, ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet. 2.

  • Page 85: Front Bezel

    6.4 Front Bezel 1. Prepare the computer for disassembly 2. Remove the access panel 3. To remove the front bezel, press in on the two bottom tabs on the left side of the bezel 1 so that they release from the chassis. Then press in on the upper tab on the left side of the bezel 2 so that it releases from the chassis.
  • Page 86 Removal and Replacement Procedures— Microtower (MT) Chassis To reinstall the front bezel, 1. Position the chassis in the upright position. 2. Insert the hooks on the right side of the bezel 1 into the rectangular holes on the chassis then rotate the bezel into place 2 so that the three tabs on the left side of the bezel and the single tab on the upper right corner of the bezel snap into the slots on the chassis.

  • Page 87: Front Drive Bezels

    6.5 Front Drive Bezels 1. Prepare the computer for disassembly 2. Remove the access panel 3. Remove the front bezel 6.5.1 5.25" Drive Bezel Blank Press the two retaining tabs on the inside of the large bezel 1 towards the outside of the bezel to release the bezel blank.

  • Page 88: Diskette Drive Bezel

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.5.2 Diskette Drive Bezel Press the two upper 1 or the two lower 2 tabs for the diskette drive bezel towards the center of the drive bezel and push the bezel out to remove it from the front bezel. To install a bezel or a bezel blank, reverse the removal procedure.

  • Page 89: Cable Management

    6.6 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 90: Memory Modules

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.7 Memory Modules Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other.

  • Page 91: Expansion Cards

    6.8 Expansion Cards 6.8.1 Expansion Slot Cover 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3. On the rear of the computer, remove the retaining screw 1 then, slide the slot cover lock up 2 to access the expansion slot covers.

  • Page 92: Standard Pci Expansion Card

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.8.2 Standard PCI Expansion Card For preliminary steps, see If replacing a standard PCI expansion card, go to step 1. If installing a standard PCI or a PCI Express expansion card for the first time in a computer, skip to step 4.
  • Page 93 5. When installing an expansion card, hold the card just above the expansion slot on the system board then move the card toward the rear of the chassis so that the bracket on the card is aligned with the open slot on the rear of the chassis 1. 6.
  • Page 94 Removal and Replacement Procedures— Microtower (MT) Chassis 7. Replace the slot cover lock using the appropriate procedure for your computer, as illustrated below: » Slide the slot cover lock down 1 toward the expansion card brackets and slot covers to hold them in place, and then install the retaining screw 2 to secure the cover lock.

  • Page 95: Pci Express Expansion Card

    6.8.3 PCI Express Expansion Card For preliminary steps, see If replacing a standard PCI Expansion card go to Card”. If installing a PCI Express expansion card for the first time in a computer, skip to step 4. 1. Pull the retention arm on the back of the PCI Express expansion socket away from the card (on x16 card socket only) and carefully rock the card back and forth until the connectors pull free from the socket.
  • Page 96 Removal and Replacement Procedures— Microtower (MT) Chassis 3. Replace the slot cover lock using the appropriate procedure for your computer, as illustrated below: » Slide the slot cover lock down 1 toward the expansion card brackets and slot covers to hold them in place, and then install the retaining screw 2 to secure the cover lock.
  • Page 97 ✎ Press firmly on the card so that the whole connector seats properly in the expansion card slot. 7. Replace the slot cover lock using the appropriate procedure for your computer, as illustrated below: » Slide the slot cover lock down towards the expansion card brackets and slot covers 1 to secure them in place, and then install the retaining screw 2.

  • Page 98: Drives

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.9 Drives The computer supports up to six 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. Ä...

  • Page 99: Removing A Drive

    6.9.2 Removing a Drive 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3. Remove the front bezel 4.

  • Page 100: Releasing The Drives

    Removal and Replacement Procedures— Microtower (MT) Chassis Disconnecting Hard Drive Cables ✎ Some products use straight cable connectors while others use right angle connectors. Releasing the Drives 5. A latch drive bracket with release tabs secures the drives in the drive bay. Lift the release tab on the latch drive bracket 1 for the drive you want to remove, then slide the drive from its drive bay 2.

  • Page 101: Installing A Drive

    6.9.3 Installing a Drive CAUTION: To prevent loss of work and damage to the computer or drive: Ä ■ If you are inserting or removing a hard drive, shut down the operating system properly, then turn off the computer. Do not remove a hard drive while the computer is on or in standby mode. ■...
  • Page 102 Removal and Replacement Procedures— Microtower (MT) Chassis 3. Reconnect the power and data cables to the drive as shown in the following illustrations. ✎ Refer to Section 4.1, “SATA and PATA Device cabling to get optimum performance. Connecting Optical Drive Cables Connecting Diskette Drive Cables 6–22 Information”for information on attaching the...
  • Page 103 Connecting Hard Drive Cables ✎ Some products use straight cable connectors while others use right angle connectors. 4. Install the front bezel 5. Install the access panel 6. Turn on the computer. ✎ If you replaced the primary hard drive, the restore CD may be used to restore the operating system, software drivers, and/or any software applications that were preinstalled on the computer.

  • Page 104: Chassis Fan

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.10 Chassis Fan 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3.

  • Page 105: Front I/O Panel Housing Assembly

    6.11 Front I/O Panel Housing Assembly 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3. Disconnect three attaching cables from the system board: the power switch/LED cable, the front USB cable, and the front audio cable.

  • Page 106: Front I/O Devices

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.12 Front I/O Devices 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3.

  • Page 107: Power Switch Assembly

    6.13 Power Switch Assembly 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3. Remove the front I/O panel assembly 4.

  • Page 108: Heatsink

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.14 Heatsink 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3.

  • Page 109: Processor

    6.15 Processor 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Disconnect the heatsink control cable from the system board and remove the heatsink. Section 6.14, “Heatsink” 4. Rotate the locking lever to its full open position 1. 5.
  • Page 110 After installing a new processor onto the 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 ROMPaq can be found on the Web at: http:\\h18000.www1.hp.com/support/files. 6–30...

  • Page 111: System Board

    6.16 System Board 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3. Remove all PCI expansion boards 4.

  • Page 112: Battery

    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. Ä...

  • Page 113: Type 1 Battery Holder

    6.17.1 Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the replacement battery into position, positive side up. 3. The battery holder automatically secures the battery in the proper position. 4. Replace the computer cover or access panel 5.

  • Page 114: Type 2 Battery Holder

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.17.2 Type 2 Battery Holder 1. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery 1. When the battery pops up, lift it out. 2.

  • Page 115: Type 3 Battery Holder

    6.17.3 Type 3 Battery Holder 1. To release the battery from its holder, press back lever 1 that extends above one edge of the battery. 2. When the battery pops up, lift it out 2. 3. To insert the new battery, push it down into the holder with the positive side to the left as shown in the drawing above.

  • Page 116: Speaker

    Removal and Replacement Procedures— Microtower (MT) Chassis 6.18 Speaker 1. Prepare the computer for disassembly 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on 3.

  • Page 117: Power Supply

    6.19 Power Supply Å WARNING: Voltage is always present on the system board when the computer is plugged into 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. 1.
  • Page 118 Removal and Replacement Procedures— Microtower (MT) Chassis 5. Pull the power supply towards the front of the chassis while depressing the two sets of retaining clips 1 to allow the power supply to move far enough to lift it from the chassis 2. To install the power supply, reverse the removal procedure.

  • Page 119: Removal And Replacement Procedures-Slim Tower (St) Chassis

    Removal and Replacement Procedures— 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. ✎ Not all features listed in this guide are available on all computers. Preparation for Disassembly Chapter 5, “Identifying the Chassis, Routine Care, and Disassembly Preparation,”...
  • Page 120 Removal and Replacement Procedures— Slim Tower (ST) Chassis 8. Disconnect all peripheral device cables from the computer. ✎ During disassembly, label each cable as you remove it, noting its position and routing. Keep all screws with the units removed. CAUTION: The screws used in the computer are of different thread sizes and lengths; using the wrong Ä...

  • Page 121: Unlocking The Smart Cover Lock

    Unlocking the Smart Cover Lock If you have locked the Smart Cover Lock use Computer Setup to unlock the lock. Refer to the Desktop Management Guide on the Documentation Library CD for more information about the Smart Cover Lock. If you cannot access Computer Setup to unlock the cover you will need to remove the locking solenoid by using the Smart Cover FailSafe Key (Spare part number 166527-001 or 166527-002).
  • Page 122 Removal and Replacement Procedures— Slim Tower (ST) Chassis To reattach the Smart Cover Lock, position the lock with the tamper-proof screw. 7–4 361293-003 Service Reference Guide, dx6100...

  • Page 123: Hood Sensor

    Hood Sensor 1. Prepare the computer for disassembly. 2. Remove the computer cover. 3. Raise the power supply to its full upright position. 4. Disconnect the hood sensor cable from the system board. 5. Slide the hood sensor switch mounted on the power supply towards the outside of the computer 1 and lower it through the slot 2.

  • Page 124: External Security Devices

    Removal and Replacement Procedures— Slim Tower (ST) Chassis External Security Devices 7.4.1 Security Clip A special clip is required to secure the computer from intrusion. This clip must be installed before installing the computer cover. 7.4.2 Cable Lock The cable lock may be used to secure the computer cover to the chassis and, at the same time, secure the computer to a fixed object.

  • Page 125: Padlock

    7.4.3 Padlock A padlock may be used by itself to secure the computer cover to the computer chassis. A padlock may also be used with a security cable to secure the computer to a fixed object. 7.4.4 Universal Chassis Clamp Lock Without Security Cable 1.
  • Page 126 Removal and Replacement Procedures— Slim Tower (ST) Chassis 3. Insert the plug into the lock 1 and push the button in 2 to engage the lock. Use the key provided to disengage the lock. 7–8 361293-003 Service Reference Guide, dx6100...

  • Page 127: With Security Cable

    Removal and Replacement Procedures— Slim Tower (ST) Chassis With Security Cable 1. Fasten the cable by looping it around a stationary object. 2. Thread the keyboard and mouse cables through the lock. Service Reference Guide, dx6100 361293-003 7–9...
  • Page 128 Removal and Replacement Procedures— Slim Tower (ST) Chassis 3. Screw the lock to the chassis using the screw provided. 4. Insert the plug end of the security cable into the lock 1 and push the button in 2 to engage the lock.

  • Page 129: Computer Cover

    Computer Cover 1. Prepare the computer for disassembly Ä CAUTION: Before removing the computer cover, ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet. 1. Press the buttons on the left and right sides of the computer 1. 2.

  • Page 130: Front Drive Bezels

    Removal and Replacement Procedures— Slim Tower (ST) Chassis Front Drive Bezels 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Remove the drive bezel by pushing the top tab on the right side of the larger front bezel as shown 1 and rotating the drive bezel away from the larger front bezel 2.
  • Page 131 There are three available drive bezel inserts. Item Diskette drive bezel Hard drive bezel 3.5” drive bezel Service Reference Guide, dx6100 Removal and Replacement Procedures— Slim Tower (ST) Chassis Description 361293-003 7–13...

  • Page 132: Cable Management

    Removal and Replacement Procedures— Slim Tower (ST) Chassis Cable Management The Slim Tower 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.
  • Page 133 When removing the power supply power cables from the P1 or P3 connectors on the system board, always follow these steps: 1. Squeeze on the top of the retaining latch attached to the cable end of the connector 1. 2. Grasp the cable end of the connector and pull it straight up 2. CAUTION: Always pull the connector - NEVER pull on the cable.

  • Page 134: Memory

    Removal and Replacement Procedures— Slim Tower (ST) Chassis Memory Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other. CAUTION: Static electricity can damage the electronic components of the computer or optional cards.
  • Page 135 6. Repeat steps 4 and 5 for any additional modules that you want to install. ✎ The computer automatically recognizes the additional memory when the computer is turned on. To reassemble the computer, reverse the removal procedure. ✎ If you normally lock the Smart Cover Lock, use Computer Setup to relock the lock and enable the Smart Cover Sensor.

  • Page 136: Vertically Oriented Expansion Card

    Removal and Replacement Procedures— Slim Tower (ST) Chassis Vertically Oriented Expansion Card 7.9.1 Expansion Card Retainer 1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to unlock the lock. 2. Turn off the computer properly through the operating system, then turn off any external devices.

  • Page 137: Pci Expansion Card

    7.9.2 PCI Expansion Card 1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to unlock the lock. 2. Turn off the computer properly through the operating system, then turn off any external devices. 3.
  • Page 138 Removal and Replacement Procedures— Slim Tower (ST) Chassis 9. Install the expansion card by sliding the card under the slot cover retention latch then pressing the card down into the slot on the system board. ✎ Be sure not to scrape other components in the chassis when installing an expansion card. 10.

  • Page 139: Pci Express Expansion Card

    7.9.3 PCI Express Expansion Card To remove a PCI Express expansion card: 1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to unlock the lock. 2. Turn off the computer properly through the operating system, then turn off any external devices.

  • Page 140: Horizontally Oriented Expansion Card

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.10 Horizontally Oriented Expansion Card This application is only available when the computer has the PCI Riser Card cage installed. Neither a PCI Express x1 or x16 card can be used in this application. 7.10.1 Expansion Card Cage 1.
  • Page 141 6. Remove the expansion card cage If you are installing a card for the first time in this computer, go to step 12. 7. If your are replacing an existing card, remove the card retaining screw 1 and stand the card cage on its end for better leverage.
  • Page 142 Removal and Replacement Procedures— Slim Tower (ST) Chassis 15. Reinstall the expansion card cage by aligning the cage with the guide rails on the backwall. Press down firmly on the cage to secure it in place on the backwall. Be sure the riser card in the cage is properly seated in the PCI expansion slot on the system board.

  • Page 143: Riser Card

    7.10.3 Riser Card 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock 7.2, “Unlocking the Smart Cover 2. Prepare the computer for disassembly 3. Remove the computer access panel 4. Remove the expansion card cage 5.

  • Page 144: Drives

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.11 Drives A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. Ä CAUTION: Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive.

  • Page 145: Optical Drive

    7.11.2 Optical Drive CAUTION: All removable media should be taken out of the drives before removing the drive from the Ä computer. ✎ An optical drive is a CD-ROM, CD-R/RW, DVD-ROM, DVD+R/RW, or CD-RW/DVD Combo drive. 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock 7.2, “Unlocking the Smart Cover 2.
  • Page 146 Removal and Replacement Procedures— Slim Tower (ST) Chassis 6. Disconnect the power and data cables from the rear of the optical drive. 7. Slide the optical drive forward and lift it up and out of the drive cage. ✎ If the drive will not slide out of the cage, the cage is not fully extended. Pull on the cage until the internal drive lock mechanism has been released.

  • Page 147: External 3.5-Inch Drive

    7.11.3 External 3.5-inch Drive 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock. Refer to Section 7.2, “Unlocking the Smart Cover 2. Prepare the computer for disassembly. Refer to 3. Remove the computer cover. Refer to 4.

  • Page 148: Primary Hard Drive

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.11.4 Primary Hard Drive 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock 7.2, “Unlocking the Smart Cover 2. Prepare the computer for disassembly 3. Remove the computer cover 4.
  • Page 149 Removal and Replacement Procedures— Slim Tower (ST) Chassis 5. Remove the security clip that secures the backwall to the power supply. 6. Rotate the power supply to its full upright position. Service Reference Guide, dx6100 361293-003 7–31...
  • Page 150 Removal and Replacement Procedures— Slim Tower (ST) Chassis 7. Disconnect the power cable and data cable from the back of the hard drive. 8. Pull the tab that locks the drive in place away from the drive 1, slide the hard drive toward the front of the computer, then lift it up and out of the bay 2.
  • Page 151 You will need a Torx T-15 screwdriver to remove and re-install the guide screws. HP has provided four extra 6-32 standard guide screws on the front of the chassis, under the computer cover. The 6-32 standard guide screws are silver and are used only for the hard drive.

  • Page 152: Fan Shroud

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.12 Fan Shroud 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Lift up on the fan shroud to remove it from the computer. When replacing the shroud, make sure that it does not get caught on the wires from either the fan or the speaker.

  • Page 153: Front I/O Devices

    7.13 Front I/O Devices 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Disconnect the two I/O device cables from the system board: the front USB cable pair and the front audio cable. 4. Remove the drives from the drive tray. Refer to 5.
  • Page 154 Removal and Replacement Procedures— Slim Tower (ST) Chassis 7. Remove the SATA cable from the front and side retaining clips. 8. Push the empty drive cage back into its locked position. CAUTION: Make sure the flat ribbon cables are folded down and the SATA and power cables are Ä...
  • Page 155 Removal and Replacement Procedures— Slim Tower (ST) Chassis 9. Remove the two screws that secure the front I/O device 1 then, push the I/O device towards the back of the chassis 2. 10. Pull the drive cage forward, grasp the I/O device and carefully pull it from under the drive cage 3.
  • Page 156 Removal and Replacement Procedures— Slim Tower (ST) Chassis Follow these procedures for reinstalling the front I/O device. 1. Begin with the drive cage in its fully extended position. Guide the I/O device cables under the drive cage and through the legs of the drive cage support 1. It may be necessary to use a wooden pencil to help in this task.

  • Page 157: Power Switch Assembly

    7.14 Power Switch Assembly 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Disconnect the power switch/LED cable from the system board. 4. Squeeze the switch holder retaining clips together at the front of the chassis 1 and push the switch assembly out of the chassis 2.

  • Page 158: Heatsink

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.15 Heatsink 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Remove the fan shroud. Refer to 4. Disconnect the heatsink fan control cable from the system board. 5. Loosen the four captive screws 1 that secure the heatsink to the system board tray. 6.

  • Page 159: Processor

    7.16 Processor 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Remove the fan shroud. 4. Disconnect the heatsink control cable from the system board and remove the heatsink (Section 7.15, “Heatsink”). 5. Rotate the locking lever to its full open position 1. 6.
  • Page 160 After installing a new processor onto the 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 ROMPaq can be found on the Web at: 7–42 http:\\h18000.www1.hp.com/support/files 361293-003 Service Reference Guide, dx6100...

  • Page 161: Speaker

    7.17 Speaker 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Remove the fan shroud 4. Remove the heatsink control cable and the heatsink from the system board “Heatsink”). 5. Remove any memory modules that might interfere with the screwdriver used for removing the speaker.

  • Page 162: Power Supply

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.18 Power Supply Å WARNING: Voltage is always present on the system board when the computer is plugged into 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.
  • Page 163 Removal and Replacement Procedures— Slim Tower (ST) Chassis 9. Lift the power supply up and out of the chassis. To install the power supply, reverse the removal procedure. Ä 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 164: System Board

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.19 System Board 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Remove all PCI and PCI Express expansion boards Expansion Card”). 4. Remove the fan shroud from the chassis 5.
  • Page 165 Removal and Replacement Procedures— Slim Tower (ST) Chassis 7. Rotate the power supply to its upright position. 8. Disconnect the serial port from the system board 9. Disconnect the balance of the cables from the system board. Service Reference Guide, dx6100 361293-003 7–47...
  • Page 166 Removal and Replacement Procedures— Slim Tower (ST) Chassis 10. Remove the heatsink from the system board and the system board tray “Heatsink”). 11. Remove the long mounting screw that secures the system board tray to the chassis. 7–48 (Section 7.15, 361293-003 Service Reference Guide, dx6100...
  • Page 167 12. Slide the system board tray assembly towards the front of the chassis, about 1/4 inch and lift the system board up and out of the chassis. 13. Remove the heatsink from the system board and the system tray ✎ The standoff tray may be separated from the bottom of the system board at this time.
  • Page 168 Removal and Replacement Procedures— Slim Tower (ST) Chassis 2. Install the processor. Ä CAUTION: Before installing a previously used heatsink you must clean the top of the procesor and the bottom of the heatsink with the alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply thermal grease to the top of the processor using the syringe in the spares kit.

  • Page 169: Chassis Fan

    7.20 Chassis Fan 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Remove the fan shroud 4. Disconnect the chassis fan cable from the system board. 5. Remove the four screws that secure the fan and fan guard to the chassis then, remove the fan from the chassis.

  • Page 170: Backwall

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.21 Backwall 1. Prepare the computer for disassembly 2. Remove the computer cover 3. Remove all PCI and PCI Express expansion boards Expansion Card”). 4. Press down on the green latch located on the front of the chassis next to the drives 1. This disengages the drive cage.
  • Page 171 8. Disconnect the “Serial A” cable 1 from the system board, remove the two screws 2 that secure the serial connector to the backwall, then remove the serial connector 3 from the backwall. 9. Remove the fan shroud from the fan 10.
  • Page 172 Removal and Replacement Procedures— Slim Tower (ST) Chassis 11. Slide the system board tray assembly towards the front of the chassis, about 7 mm (1/4-inch) and lift the system board up and out of the computer. 12. Remove the three screws 1 that secure the backwall assembly to the chassis, then slide the backwall assembly 2 a few millimeters/inches toward the space vacated by the power supply and lift out.
  • Page 173 13. Slide the new backwall 1 onto the rear chassis. Secure it with the three screws 2 removed from the old backwall. 14. Install the serial connector 1 into the new backwall using the two screws 2 that were removed from the serial connector in a previous step. Reconnect the “Serial A” cable 3 to the system board.
  • Page 174 Removal and Replacement Procedures— Slim Tower (ST) Chassis 16. Reconnect all power and data cables to the system board. Be sure to use proper cable handling and placement precautions. 17. Install the power supply. Rotate it to its normal operating position. Be sure to use proper cable handling and placement precautions.
  • Page 175 Removal and Replacement Procedures— Slim Tower (ST) Chassis 21. Replace the fan shroud on top of the fan. 22. Replace the computer access panel. 23. Connect the power cord to the computer and electrical outlet. 24. Connect any peripheral equipment to the computer. Service Reference Guide, dx6100 361293-003 7–57...

  • Page 176: Battery

    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. Ä...

  • Page 177: Type 1 Battery Holder

    7.22.1 Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the replacement battery into position, positive side up. 3. The battery holder automatically secures the battery in the proper position. 4. Replace the computer cover or access panel. 5.

  • Page 178: Type 2 Battery Holder

    Removal and Replacement Procedures— Slim Tower (ST) Chassis 7.22.2 Type 2 Battery Holder 1. 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. 2.

  • Page 179: Type 3 Battery Holder

    7.22.3 Type 3 Battery Holder 1. Pull back on the clip 1 that holds the battery in place, then remove the battery 2. 2. Insert the new battery and position the clip back in place. ✎ After the battery has been replaced, use the following steps to complete this procedure. 3.
  • Page 180 Removal and Replacement Procedures— Slim Tower (ST) Chassis 7–62 361293-003 Service Reference Guide, dx6100...

  • Page 181: 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 Service Reference Guide, dx6100 Connector Pin Assignments Signal Data...

  • Page 182: Ethernet Aui

    Connector Pin Assignments Ethernet RJ-45 Connector and Icon Ethernet AUI Signal Ground Negative AUI Differential Collision Positive AUI Differential Collision Negative AUI Differential Transmit Positive AUI Differential Transmit Ground Ground Negative AUI Differential Receive A–2 Signal (+) Transmit Data (-) Transmit Data (+) Receive Data Unused Unused...

  • Page 183: Parallel Interface

    Parallel Interface Signal Strobe Data Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 Serial Interface, Powered and Non-Powered Connector and Icon Connector and Icon Microphone Connector and Icon (1/8” miniphone) 1 2 3 1 2 3 Service Reference Guide, dx6100 Connector and Icon Signal...
  • Page 184 Connector Pin Assignments 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 SCSI Low Voltage Differential/Single Ended (LVD/SE) Signal 1-16 Ground 17-18 TERMPWR...

  • Page 185: External Infrared Transceiver

    Ultra SCSI Signal 1-11 Ground Reserved Open Reserved 15-25 Ground External Infrared Transceiver Signal Transmit Receive Ground Monitor Signal Red Analog Green Analog Blue Analog Not used Ground Service Reference Guide, dx6100 Connector and Icon Signal Signal Reserved TERMPWR Reserved Ground ATN # Ground...
  • Page 186 Connector Pin Assignments ATA/ATAPI (IDE) Standard Drive Cable Signal Reset Ground DD10 DD11 DD12 DD13 MultiBay CD-ROM Adapter Signal RESDRV_ GROUND A–6 Connector Signal DD14 DD15 Ground (Key) DMARQ Ground DIOW Ground DIOR Ground IORDY CSEL Connector Signal Signal GROUND (key) CS1FX CS3FX...

  • Page 187: Pin Power

    24-Pin Power Signal +3.3 V +3.3 V +5 V +5 V 24-Pin MicroFit Power Signal +5 Vaux +5 V +5 V PS_ON 4-Pin Power (for CPU) Connector and Icon Service Reference Guide, dx6100 Connector Signal Signal +3.3 V -12 V +5 Vaux +12 V PSON...
  • Page 188 Connector Pin Assignments 6-Pin Power (for CPU) Connector and Icon SATA Data and Power Signal Ground V 3.3 Ground V 12 *S = Data, P = Power A–8 Signal 12 V CPU 12 V CPU +12 V Drive Connector Signal Signal Ground V 3.3...
  • Page 189 PCI Express x1, x4, x8, and x16 PCI Express Connector Pin A Signal Signal PRSNT1# JTAG3 +12V JTAG4 +12V JTAG5 +3.3v JTAG2 +3.3v PERn(2) RSVD RSVD PERp3 PERn3 PERp4 PERp9 PERp8 PERn9 PERn8 PERp10 PERp14 PERn15 PERn14 PERp15 Pin B information is on the next page Notes: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32...
  • Page 190 Connector Pin Assignments PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B Signal Signal +12V SMDAT +12V RSVD +3.3v JTAG1 SMCLK 3.3vAux PRSNT2# PETp3 PETn3 PETp4 PETn4 RSVD PETn8 PETp10 PETp9 PETn10 PETn9 PRSNT2# RSVD PETp15 PETn15 Notes: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32...

  • Page 191: Power Cord Set Requirements

    Power cord sets for use in other countries must meet the requirements of the country where you use the computer. For more information on power cord set requirements, contact your authorized HP dealer, reseller, or service provider. General Requirements The requirements listed below are applicable to all countries: 1.
  • Page 192 Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. Country Australia (1) Austria (1) Belgium (1) Canada (2) Denmark (1) Finland (1) France (1) Germany (1) 1. The flexible cord must be <HAR> Type HO5VV-F, 3-conductor, 1.0 mm Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it will be used.

  • Page 193: Post Error Messages

    POST Error Messages An error message results if the Power-On Self-Test (POST) encounters a problem. This test runs when the system is turned on, checking assemblies within the computer and reporting any errors found. Not all computers use all of the codes listed. POST Error Messages Screen Message 101-Option ROM...
  • Page 194 Run Computer Setup (F10 Setup). incorrect. Make sure memory module(s) (if any) are installed properly. If third party memory has been added, test using HP-only memory. Verify proper memory module type. RAM failure. Run Computer Setup (F10 Setup) or Windows utilities.
  • Page 195 POST Error Messages Screen Message 301-Keyboard Error 303-Keyboard Controller Error 304-Keyboard or System Unit Error 501-Display Adapter Failure 510-Splash Screen image corrupted 511-CPU, CPUA, or CPUB Fan not detected 512-Chassis, rear chassis, or front chassis fan not detected 514-CPU or Chassis Fan not detected.
  • Page 196 System test if applicable. that will fix an erroneous Apply firmware patch if applicable. (see error message.) www.hp.com/support) Back up contents and replace hard drive. (for MultiBay option on Ensure the MultiBay option is attached non-USDT systems) as device 0 on the IDE cable.
  • Page 197 POST Error Messages Screen Message 1794-Inaccessible devices attached to SATA 1 and/or SATA (for systems with 4 SATA ports) 1796-SATA Cabling Error 1801-Microcode Patch Error 1998-Master Boot Record has been lost. 1999-Master Boot Record has been changed. Service Reference Guide, dx6100 Probable Cause (for integrated MultiBay/ Ensure the MultiBay device is fully...
  • Page 198 Run Computer Setup. If Setup already has become corrupted. 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 199: Post Diagnostic Front Panel Leds And Audible Codes

    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. ✎...
  • Page 200 Replace the system board. Pre-video Reseat DIMMs. Power on the system. memory error. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. Pre-video For systems with a graphics card: graphics error.
  • Page 201 Activity Red Power LED flashes nine times, once every second, followed by a two second pause. Red Power LED flashes ten times, once every second, followed by a two second pause. System does not power on and LEDs are not flashing.
  • Page 202 C–10 361293-003 Service Reference Guide, dx6100...

  • Page 203: Troubleshooting Without Diagnostics

    Troubleshooting Without Diagnostics Preliminary Checklist This section describes some simple, preliminary tests and guidelines for troubleshooting the computer without using the diagnostics. ■ Are the computer and monitor connected to a working electrical outlet? ■ Is the voltage select switch is set to the appropriate voltage for your region (115V or 230V)? ■...

  • Page 204: Solving Minor Problems

    Solving Minor Problems Solving Minor Problems Problem Computer appears locked up and will not turn off when the power button is pressed. Computer will not respond to USB keyboard or mouse. CAUTION: When attempting to resume from standby mode, do not hold down the power Ä...
  • Page 205 Solving Minor Problems (Continued) Problem Poor performance is experienced. (continued) 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. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved.
  • Page 206 Solving Minor Problems (Continued) Problem System does not power on and the LEDs on the front of the computer are not flashing. D–4 Cause Possible Solution System unable to power Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, then: 1.

  • Page 207: Solving Power Supply Problems

    Solving Power Supply Problems Solving Power Supply Problems Problem Power supply shuts down intermittently. 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. Beeps continue for five iterations after which the LED flashes will continue until the...

  • Page 208: Solving Diskette Problems

    Solving Diskette Problems Solving Diskette Problems Problem Diskette drive light stays on. Drive not found. Diskette drive cannot write to a diskette. Cannot format diskette. D–6 Cause Solution Diskette is damaged. In Microsoft Windows XP, right-click Start, click Explore, and select a drive.
  • Page 209 Solving Diskette Problems (Continued) Problem Cannot format diskette. (continued) A problem has occurred with a disk transaction. Diskette drive cannot read a diskette. “Invalid system disk” message is displayed. Service Reference Guide, dx6100 Cause Solution Diskette is Use another diskette or remove the write-protected.

  • Page 210: Solving Hard Drive Problems

    Solving Diskette Problems (Continued) Problem Cannot Boot to Diskette. Solving Hard Drive Problems Solving Hard Drive Problems Problem Hard drive error occurs. Disk transaction problem. Drive not found (identified). D–8 Cause Solution Diskette is not bootable. Replace with a bootable diskette. Diskette boot has been Run Computer Setup and enable diskette boot in Storage >...
  • Page 211 Solving Hard Drive Problems (Continued) Problem Nonsystem disk/NTLDR missing message. Nonsystem disk/NTLDR missing message. (continued) Service Reference Guide, dx6100 Cause Solution The system may not 1. Run Computer Setup. have automatically 2. If the system still does not recognized a newly recognize the new device, installed device.
  • Page 212 Solving Hard Drive Problems (Continued) Problem Parallel ATA (PATA) hard drive does not perform optimally. Computer will not start. Computer seems to be locked up. D–10 Cause Solution System files missing or 1. Insert a bootable system diskette not properly installed. and restart.

  • Page 213: Solving Multibay Problems

    Solving MultiBay Problems Solving MultiBay Problems Problem Drive not found. Service Reference Guide, dx6100 Cause Solution You attempted to hot Shut down Windows and turn off plug a removable the computer. Insert the drive into hard drive that has the MultiBay, if it is not already DriveLock security inserted.

  • Page 214: Solving Display Problems

    Solving Display Problems Problem Blank screen (no video). CAUTION: When attempting to resume from standby mode, do not hold down the Ä power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data. D–12 Cause Solution...
  • Page 215 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. Pre-video graphics For systems with a graphics card: error.
  • Page 216 Problem Blurry video or requested resolution cannot be set. The picture is broken up, rolls, jitters, or flashes. Vibrating or rattling noise coming from inside a CRT monitor when powered on. Clicking noise coming from inside a CRT monitor. High pitched noise coming from inside a flat panel monitor.

  • Page 217: Solving Audio Problems

    Problem Certain typed symbols do not appear correct. Solving Audio Problems Solving Audio Problems Problem Sound does not come out of the speaker or headphones. Service Reference Guide, dx6100 Cause Solution The font you are using Use the Character Map to locate the does not support that and select the appropriate symbol.
  • Page 218 Solving Audio Problems (Continued) Problem CAUTION: When attempting to resume from standby mode, do not hold down the Ä power button for more than four seconds. Otherwise, the computer will shut down and any unsaved data will be lost. Noise or no sound comes out of the speakers or headphones.

  • Page 219: Solving Printer Problems

    Solving Printer Problems Solving Printer Problems Problem Printer will not print. Printer will not turn on. Printer prints garbled information. Printer is offline. Service Reference Guide, dx6100 Cause Solution Printer is not turned on Turn the printer on and make sure it and online.

  • Page 220: Solving Keyboard And Mouse Problems

    Solving Keyboard and Mouse Problems Solving Keyboard and Mouse Problems Problem Keyboard commands and typing are not recognized by the computer. CAUTION: When attempting to resume from standby mode, do not hold down the Ä power button for more than four seconds. Otherwise, the computer will shut down and any unsaved data will be lost.
  • Page 221 Solving Keyboard and Mouse Problems Problem Mouse does not respond to movement or is too slow. (continued) CAUTION: When attempting to resume from standby mode, do not hold down the Ä power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

  • Page 222: 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 diskette drive. If you install a plug and play device, Windows 2000 and Windows XP automatically recognize the device and configure the computer. If you install a non–plug and play device, you must reconfigure the computer after completing installation of the new hardware.
  • Page 223 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. Video card is not For systems with a graphics card: seated properly or is 1.

  • Page 224: Solving Network Problems

    Solving Network Problems These guidelines do not discuss the process of debugging the network cabling. Solving Network Problems Problem Wake-on-LAN feature is not functioning. Network driver does not detect network controller. Network status link light does not turn on or it never flashes.
  • Page 225 Solving Network Problems (Continued) Problem Diagnostics passes, but the computer does not communicate with the network. Diagnostics passes, but the computer does not communicate with the network. Network controller stopped working when an expansion board was added to the computer. Network controller stops working without apparent cause.

  • Page 226: Solving Memory Problems

    Solving Memory Problems Ä CAUTION: For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the system will not boot the operating system. Solving Memory Problems Problem System will not boot or does not function properly after installing additional memory modules.

  • Page 227: Solving Processor Problems

    Solving Processor Problems Solving Processor Problems Problem Poor performance is experienced. Power LED flashes Red three times, once every second, followed by a two second pause, and the computer beeps three times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved.

  • Page 228: Solving Cd-Rom And Dvd Problems

    Solving CD-ROM and DVD Problems Solving CD-ROM and DVD Problems Problem System will not boot from CD-ROM or DVD drive. CD-ROM or DVD devices are not detected or driver is not loaded. Movie will not play in the DVD drive. Cannot eject compact disc (tray-load unit).

  • Page 229: Solving Drive Key Problems

    Solving CD-ROM and DVD Problems (Continued) Problem CD-ROM, CD-RW, DVD-ROM, or DVD-R/RW drive cannot read a disc or takes too long to start. (continued) Recording audio CDs is difficult or impossible. Solving Drive Key Problems Solving Drive Key Problems Problem Drive key is not seen as a drive letter in Windows XP.

  • Page 230: Solving Internet Access Problems

    Solving Front Panel Component Problems Problem A USB device, headphone, or microphone is not recognized by the workstation. (continued) Solving Internet Access Problems Solving Internet Access Problems Problem Unable to connect to the Internet. D–28 Cause Solution The correct device 1.
  • Page 231 Solving Internet Access Problems (Continued) Problem Unable to connect to the Internet. (continued) Cannot automatically launch Internet programs. Internet takes too long to download Web sites. Service Reference Guide, dx6100 Cause Solution Cookies are corrupted. Windows XP 1. Select Start > Control Panel.

  • Page 232: Diagnostic Front Panel Leds And Audible Codes

    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. ✎...
  • Page 233 4. Replace the system board. Pre-video memory 1. Reseat DIMMs. Power on the system. error. 2. Replace DIMMs one at a time to 3. Replace third-party memory with HP 4. Replace the system board. 361293-003 present. 6-wire power supply cable is seated into the connector on the system board.
  • Page 234 3. Replace the processor. 361293-003 the system. diskette. See the “ROM Flash” section of the Desktop Management Guide on the Documentation CD. located on the rear of the power supply (some models), is set to the appropriate voltage. Proper voltage setting depends on your region.
  • Page 235 Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Red Power LED flashes ten times, once every second, followed by a two second pause and the computer beeps ten times. Beeps stop after fifth iteration but LEDs continue until problem is resolved.
  • Page 236 D–34 361293-003 Service Reference Guide, dx6100...
  • Page 237 System Board and Riser Board Reference These reference designators are used on most but not all HP system and riser boards. Designator CR35 E49/JP49 J20 - 29 J31 - J35 Service Reference Guide, dx6100 Component Battery socket/Battery LED - 5V_Aux(on)/PS_ON(off)
  • Page 238 Designator J101 J9020-J9029 J9030-J9034 JP49/E49 E–2 Component (Continued) Video connector, VGA Primary single USB connector Secondary single USB port Microphone jack Line-in jack Line-out jack Headphone jack Volume control Double-stacked headphone (Bottom)/microphone (Top) connector Double-stacked line-in (Top)/line-out (Bottom) connector Stacked serial/audio connector Primary double-stack USB, Top = Port 2, Bottom = Port 1 Secondary double-stack USB, Top = Port 4, Bottom = Port 3 Triple-stacked audio jack (line in, line out/headphone, microphone)
  • Page 239 Designator P101 P106 P124 P125 P126 P216 SW50 Service Reference Guide, dx6100 Component (Continued) MultiBay header SCSI LED connector PCI extender slot (female) Blade PC graphics connector (outboard) Blade PC graphics connector (inboard) Serial port header First serial port Flying serial port Double stack serial port, Top = Serial B, Bottom = Serial A Riser edge connector (male-mates with J30) Primary Serial ATA (SATA) connector...
  • Page 240 Designator XMM1 XMM2 - XMM5 XU15/U15 Y5/H5 E–4 Component (Continued) VRM controller USB front port power switch First USB rear port power switch Second USB rear port power switch Third USB rear port power switch Battery retainer Memory slot. DIMM1 or RIMM1 populated and tested Following memory slots Primary processor socket Secondary processor socket...
  • Page 241 The dx6100 series computers with Intel-based processors may come with either double data rate synchronous dynamic random access memory (DDR-SDRAM) dual inline memory modules (DIMMs) or with double data rate 2 synchronous dynamic random access memory (DDR2-SDRAM) dual inline memory modules (DIMMs). Ä...

  • Page 242: Dimm Sockets

    DDR2-SDRAM DIMMs The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory module slots are populated with at least one preinstalled memory module. To achieve the maximum memory support, you can populate the system board with up to 4GB of memory configured in a high-performing dual channel mode.
  • Page 243 The system board shown may differ from the one in your product. Item Description DIMM socket XMM1, Channel A DIMM socket XMM2, Channel A DIMM socket XMM3, Channel B DIMM socket XMM4, Channel B The system will automatically operate in single channel mode, dual channel Asymmetric mode, or a a higher-performing dual channel Interleaved mode, depending on how the DIMMs are installed.
  • Page 244 F–4 361293-003 Service Reference Guide, dx6100...
  • Page 245 4-pin power pin assignments A–7 24-pin MicroFit power pin assignments A–7 24-pin power pin assignments A–7 6-pin power pin assignments A–8 access panel, MT removal and replacement 6–4 advanced, Computer Setup heading 2–11 ATA/ATAPI (IDE) drive cable pin assignments A–6 backwall ST removal and replacement 7–52 battery...
  • Page 246 MT removal and replacement 6–28 ST removal and replacement 7–40 hood sensor ST removal and replacement 7–5 HP software. See software infrared (IR) transceiver, external, pin assignments A–5 installing Diagnostics for Windows 2–15 IR transceiver. See infrared (IR) transceiver...
  • Page 247 jumper settings D–9 keyboard cleaning 5–6 pin assignments A–1 LEDs blinking power C–7 blinking PS/2 keyboard C–7 line-in audio pin assignments A–4 line-out audio pin assignments A–4 memory DDR F–1 DDR2 F–2 MT removal and replacement 6–10 ST removal and replacement 7–16 menu bar, Diagnostics for Windows 2–16 microphone pin assignments A–3 microtower.
  • Page 248 Index ST expansion card removal and replacement 7–21 PCI Express expansion card MT removal and replacement 6–15 PCI Express pin assignments A–9 POST (Power-On Self-Test) 2–1 POST error messages C–1 C–6 power cord set requirements country specific B–2 general B–1 power supply fan 5–7 MT removal and replacement 6–37...
  • Page 249 safety precautions, cleaning 5–5 SATA data cable pinouts 4–2 power cable pinouts 4–2 SATA pin assignments A–8 screws, correct size 5–7 SCSI pin assignments A–4 SDRAM (synchronous dynamic random access memory) F–1 security Computer Setup heading 2–7 MT 6–2 ST 7–6 security features mechanical 3–16 Setup (F10) 3–13...
  • Page 250 Wake-on-LAN feature D–22 warnings battery 5–8 Web sites Altiris solutions 3–3 Diagnostics for Windows SoftPaq 2–15 Fingerprint Identification technology 3–25 HP 1–1 1–3 Index–6 HPQFlash 3–5 PC Deployment 3–1 Remote ROM Flash 3–4 replicating setup, BIOS utility 3–8 ROM Flash 3–4 software downloads 2–15...

This manual is also suitable for:

Compaq dx6100 stDx6100 - microtower pcCompaq dx6100 seriesDx6120 - microtower pc

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