Compaq Deskpro EN Series Maintenance & Service Manual
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Compaq Deskpro EN Series Maintenance & Service Manual

Small form factor and net pc models
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Small Form Factor and
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  • Page 1 Maintenance & Service Guide Compaq Deskpro EN Series of Personal Computers Small Form Factor and Net PC Models...
  • Page 2 314271-001 314082-001...
  • Page 3 THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL. This guide contains information protected by copyright. No part of this guide may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation. © 1998 Compaq Computer Corporation.

  • Page 5: Table Of Contents

    Symbols and Conventions ......................ix Technician Notes ......................... x System Serial Number ......................... x Locating Additional Information....................x chapter 1 Product Description 1.1 Compaq Deskpro EN Series of Personal Computers............1-2 1.1.1 Small Form Factor Models ................1-2 1.1.2 Net PC Models....................1-2 1.2 Features ..........................1-3 1.3 Design Overview ......................1-4...
  • Page 6 2.11.9 Universal Driver Manager ................2-30 2.12 Building Blocks and Partners..................2-31 2.12.1 Desktop Management Interface (DMI)............2-31 2.12.2 Compaq Insight Manager and the Insight Management Agents......2-31 2.12.3 Compaq Management Solutions Partners Program .........2-32 chapter 3 Illustrated Parts Catalog 3.1 System Unit........................3-2 3.2 Miscellaneous Plastics Kit ....................3-4 3.3 Miscellaneous Hardware Kit....................3-5...
  • Page 7 4.2 Routine Care ........................4-3 4.2.1 General Cleaning Safety Precautions ..............4-3 4.2.2 Cleaning the Computer Case ................4-4 4.2.3 Cleaning the Keyboard ..................4-4 4.2.4 Cleaning the Monitor..................4-4 4.2.5 Cleaning the Mouse ...................4-5 4.3 Service Considerations.....................4-5 4.3.1 Power Supply Fan....................4-5 4.3.2 Tools and Software Requirements..............4-5 4.3.3 Screws........................4-5 4.3.4...
  • Page 8 Hard Drives......................7-5 7.2.3 24X Max Slimline CD-ROM Drive (Small Form Factor Model only) .....7-6 7.3 Audio System (Small Form Factor only).................7-7 7.4 Compaq Enhanced Keyboard ..................7-7 7.5 Two-Button Mouse ......................7-8 7.6 Supported Graphics Resolutions..................7-8 7.6.1 ATI RAGE PRO TURBO AGP 2X ..............7-8...
  • Page 9 appendix E POST Error Messages ......................... E-1 appendix F Troubleshooting Without Diagnostics Checklist for Solving Minor Problems ..................F-1 Resolving Audio Hardware Conflicts..................F-11 Contents...

  • Page 10: Preface

    This Maintenance and Service Guide is a troubleshooting and repair guide that can be used for reference when servicing the Compaq Deskpro EN Series, Small Form Factor and Net PC Models. Only authorized technicians trained by Compaq should attempt to repair this equipment.

  • Page 11: Technician Notes

    Technician Notes WARNING: Only authorized technicians trained by Compaq should attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, no one should attempt to make repairs at the component level or to make modifications to any printed wiring board.

  • Page 12: Product Description

    RODUCT ESCRIPTION This chapter describes the model offerings and features of the Compaq Deskpro EN Series of Personal Computers, Small Form Factor and Net PC models. Net PC and Small Form Factor Model Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 13: Compaq Deskpro En Series Of Personal Computers

    Compaq Deskpro EN Series of Personal Computers 1.1.1 Small Form Factor Models The Small Form Factor models come standard with: „ 1.44-MB diskette drive „ Intel Pentium II Microprocessor with MMX Technology „ Non-ECC SDRAM memory „ 4-MB embedded ATI RAGE PRO TURBO AGP 2X graphics memory;...

  • Page 14: Features

    CD-ROM drive, Small Form Factor only One 3.5-inch drive, 1.44-MB standard 24X Max Slimline CD-ROM Drive (select models) Internal speaker, standard Internal battery, standard Power supply fan, standard Two-button mouse Compaq Deskpro EN Series, Small Form and Net PC Models...

  • Page 15: Design Overview

    Chapter 5, “Removal and Replacement Procedures.” Preloaded Software The following software is preloaded on the computer: „ Compaq Diagnostics for Windows „ Compaq support software and device drivers „ Online Safety & Comfort Guide (when English is the chosen language) „ Intelligent Manageability „...

  • Page 16: Ordering Additional Operating System Drivers

    The annual subscription provides continuous access to the latest developments, while the single CD-ROM offers information as it is needed. When calling Compaq to place an order, be sure to have the serial number of the computer available. The location of the serial number is shown in Chapter 5, “Removal and Replacement Procedures.”...

  • Page 17: External Computer Features

    External Computer Features The Small Form Factor and Net PC models ship with a mouse and keyboard. A Compaq color monitor or other compatible monitor, which is also required to operate the computer, must be purchased separately. 1.5.1 Front Panel Controls and LEDs...

  • Page 18: Drive Positions

    To verify the type, size, and capacity of the mass storage devices installed in the computer, run the View System Information (INSPECT) utility available at computer startup. Review Chapter 2, “Software Reference,” for information. Compaq Deskpro EN Series, Small Form and Net PC Models...

  • Page 19: Rear Panel Connectors And Indicators

    1.5.3 Rear Panel Connectors and Indicators Rear Panel Connectors and Indicators Voltage Select Switch Ethernet RJ-45 Activity Lights Power Cord Connector Serial Connector (COM A) Audio Line Out (stereo, non amplified) Microphone Connector (mono) Double-stacked USB Connectors Parallel Connector Ethernet RJ-45 Connector Serial Connector (COM B) Mouse Connector Keyboard Connector...

  • Page 20: Compaq Enhanced Keyboard

    *Keys available in select geographic regions. The keyboard has feet on the bottom that enable the user to tilt the keyboard to a more comfortable typing angle. Keyboard Tilt Feet Compaq Deskpro EN Series, Small Form and Net PC Models...

  • Page 21: Software Reference

    The Windows NT installation that is completed when the computer is first turned on creates an I386 directory. This directory and its subdirectories provide the Compaq-specific integration of Windows NT for the computer model. This image, license permitting, can be used as a distribution share point to deploy Windows NT over a network connection.
  • Page 22 2. Press the F6 key when the message “Setup is inspecting your computer’s hardware configuration…” appears on your screen. 3. When asked if you want to specify a storage device, press S and select the Compaq ATAPI/IDE/LS-120 Controller from the list.

  • Page 23: Registering The Computer

    The Microsoft Windows 95, Windows 98, or Windows NT Workstation operating system is preinstalled on the computer and will be configured automatically the first time the computer is turned on. The following Compaq software will also be installed at that time on selected models: „...

  • Page 24: Compaq Computer Setup Utilities And Diagnostic Features

    Compaq Computer Setup Utilities and Diagnostic Features Compaq Computer Setup Utilities and diagnostic features provide information needed about the computer system when contacting Compaq Customer Support. These tools can also be used to: „ Change factory default settings, and to set or change the system configuration, which may be necessary when you add or remove hardware.
  • Page 25 Ignore Changes and Exit. If you have already applied changes you now want to eliminate, select Set Defaults and Exit. This option will restore the original system defaults. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 26: Computer Setup Menu

    2.4.2 Computer Setup Menu Heading Option Description File System Information Lists product name, processor type/speed/stepping, CPU serial number, system ROM date, system board revision, installed memory size, and asset tracking number. Set Time and Date Allows you to set system time and date. Save to Floppy Saves system configuration to a blank 1.44-MB diskette.
  • Page 27 Appears only if there are multiple PCI video adapters in the system. Allows users to specify which VGA controller will be the “boot” or primary VGA controller. * These options should be used by advanced users only. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 28: Computer Diagnostics

    Computer Diagnostics Compaq strongly recommends that you create a diagnostics diskette as soon as you begin to use the computer. This diskette will play an important role in the restoration process if you ever experience a major system failure. It will also allow you to run the Computer Checkup (TEST) or View System Information (INSPECT) diagnostic programs.

  • Page 29: View System Information (Inspect)

    View information about the system once it has been configured. „ Save, print, or display the information generated by INSPECT. You should run INSPECT and have the printed report available before placing a call to the Compaq Customer Support Center. „...

  • Page 30: Enhanced Compaq Insight Personal Edition (Compaq Diagnostics For Windows)

    „ Operating system „ Windows version Depending on the version, Compaq Insight Personal Edition may include diagnostic tests to determine if all the devices installed on the computer are recognized by the system and are functioning properly. 2-10 Software Reference...
  • Page 31 By following the recommended actions, you may be able to solve some problems yourself. 7. Click Print or Save the error information in case you need to contact your Compaq authorized dealer, reseller, or service provider for assistance. 8. To exit Compaq Insight Personal Edition, click File, then click Exit.

  • Page 32: Protecting Your Software

    You can order a set of backup diskettes from Compaq at nominal cost for all of the software preinstalled on the computer, or you can make a set. Refer to the operating system or backup utility documentation for instructions on making backup copies of data files.

  • Page 33: Intelligent Manageability

    Intelligent Manageability Compaq Intelligent Manageability is the best, most comprehensive set of desktop management solutions in the industry. Providing easy control and management of the desktop and portable PC, Intelligent Manageability delivers significant financial and intangible returns when used to manage distributed PC environments.

  • Page 34: Initial Configuration And Deployment

    „ Installing application software or drivers. To initiate Remote System Installation, press F12 when the F12=Network Service Boot message appears in the lower-right corner of the Compaq logo screen. Follow the instructions on the screen to continue the process. 2-14...

  • Page 35: Asset Tracking And Security

    Asset Tracking and Security Compaq AssetControl features incorporated into the computer provide key asset tracking data that can be managed using Management Solutions Partners products. Seamless, automatic integration between AssetControl features and Solutions Partners products enables you to choose the management tool that is best suited to your environment and to leverage your investment in existing tools.

  • Page 36: Password Security

    For more information about Computer Setup, refer to the “Compaq Computer Setup Utilities” section of this chapter. In some cases switches may need to be set. For more information about these switches, refer to the “Connectors, Jumpers, and Switches”...
  • Page 37 Type carefully; for security reasons, the characters you type do not appear on the screen. The new password takes effect the next time you turn on the computer. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 2-17...
  • Page 38 Deleting a Power-On or Setup Password 1. Turn on or restart the computer. If you are in Windows, click Start Æ Shut Down Æ Restart the Computer. To delete the setup password, run Computer Setup. 2. When the key icon appears, type your current password followed by a slash (/) or alternate delimiter character as shown: current password/ Refer to the “National Keyboard Delimiter Characters”...

  • Page 39: Smart Cover Sensor

    3. Select Security, then select Smart Cover and follow the instructions on the screen. 4. Before exiting, click File Æ Save Changes and Exit. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 2-19...

  • Page 40: Quicklock/Quickblank

    „ PC component failure (e.g., processor or power supply) „ Forgotten password CAUTION: The Smart Cover FailSafe Key is a specialized tool available from Compaq. Be prepared; order this key before you need one. 2.9.4 QuickLock/QuickBlank QuickLock/QuickBlank disables the keyboard and mouse interface, and can blank the screen, without exiting open applications.

  • Page 41: The Cable Lock Provision

    A physical security device for your computer may also be available, through the cable lock provision. See your Guide to Features & Upgrades for more information on using and installing the cable lock provision. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 2-21...

  • Page 42: Fault Notification And Recovery

    When a fault occurs, the computer displays a Local Alert message containing a description of the fault and any recommended actions. You can then view current system health by using Compaq Insight Personal Edition. If the computer is connected to a network managed by Compaq Insight Manager or other SNMP-based management products from Compaq Management Solutions Partners, the computer also sends a fault notice to the network management application.

  • Page 43: Proactive Backup

    This feature displays a warning message when the normal range is exceeded, which gives you time to take action before internal components are damaged or data is lost. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 2-23...

  • Page 44: Software Updating And Management

    For more information, refer to the online Remote Management Administrators Guide. The Remote Management Administrators Guide is included with the Remote Management Administration Tools, and is available on the Support Software CD or at the Compaq Web Site at www.compaq.com.
  • Page 45 If the system successfully starts from the diskette and successfully reprograms the ROM, then the three keyboard lights will turn on. A “rising tone” series of beeps also signals successful completion. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 2-25...
  • Page 46 Insert a valid ROMPaq diskette, turn the power off, then turn the power on. ROM upgrade failed. Try another ROMPaq diskette. If the light remains turned on, contact Compaq customer support. ROM upgrade successfully completed. Turn power off and back on to resume normal system operation. Keyboard Lights...

  • Page 47: Remote Security Management

    Security Management, refer to the online Remote Management Administrators Guide. The Remote Management Administrators Guide is included with the Remote Management Administration Tools, and is available on the Support Software CD or at the Compaq Web Site at www.compaq.com. 2.11.3...

  • Page 48: Replicating Original Setup

    2.11.4 Replicating Original Setup This procedure gives an administrator the ability to easily copy one setup configuration to other computers of the same model. This allows for faster, more consistent configuration of multiple computers. To replicate your setup: 1. Access the Computer Setup Utilities menu. 2.

  • Page 49: Enhanced Support Software Cd And World Wide Web Site

    (Compaq part number 183426-xxx). The annual subscription ensures your continuous access to the latest developments. If you call Compaq to place an order, be sure to have the serial number of the computer available. This number is necessary for all purchases.

  • Page 50: Compaq Integrated Software

    The resulting solution enables customers to manage and control ongoing software maintenance costs. The UDM is available on the Support Software CD and may be downloaded from the Compaq World Wide Web site at www.compaq.com. 2-30 Software Reference...

  • Page 51: Building Blocks And Partners

    The Desktop Management Task Force (DMTF) is an industry body created in 1992 with the goal of standardizing systems manageability. DMTF established the Desktop Management Interface (DMI) framework to standardize access to PC configuration data. Compaq, as a Steering Committee and Technical Committee member of the DMTF, delivers hardware and software instrumentation that supports the DMI standard.

  • Page 52: Compaq Management Solutions Partners Program

    Compaq Family of Personal Computers information from a central location. The partnership ensures that the benefits of Intelligent Manageability are accessible through a broad range of vendors. This allows customers to use their tools of choice to remotely manage their Compaq computers more confidently and cost effectively.

  • Page 53: Illustrated Parts Catalog

    This chapter provides an illustrated parts breakdown and a reference for spare parts for the Small Form Factor and Net PC models. Net PC and Small Form Factor Models Compaq Deskpro EN Series. Small Form Factor and Net PC Models...

  • Page 54: System Unit

    System Unit Illustrated Parts Catalog...
  • Page 55 Power Supply 288472-001 Chassis assembly 314221-001 includes hinge bar, hinge bar retaining screw, drive cage spring, cover release latch, and power supply hinge bracket with mounting screws (repair/exchange only) Compaq Deskpro EN Series. Small Form Factor and Net PC Models...

  • Page 56: Miscellaneous Plastics Kit

    Miscellaneous Plastics Kit Spare Part Warranty Description Number Tier Miscellaneous Plastics Kit, includes 314219-001 1a Bezel blank (Small Form Factor only) 1b Power switch button 1c Power switch button spring 1d Hood release latch buttons (2 each) 1e Hood latch (2 each) 1f Cable clip (2 each) Illustrated Parts Catalog...

  • Page 57: Miscellaneous Hardware Kit

    Screw, M2.5 × 0.45 high top (5 each) Screw, #4-40 × 5/16 slide latch (5 each) Feet (4 each) Power supply pivot bracket (2 each) Solenoid bracket Speaker Nuts (5 each) Compaq Deskpro EN Series. Small Form Factor and Net PC Models...

  • Page 58: Miscellaneous Parts

    Miscellaneous Parts Spare Part Warranty Description Number Tier Two-button mouse 166861-001 Security lock bracket 199109-001 Smart Cover FailSafe Key includes: Tamper Resistant T-15 Wrench 166527-001 Tamper Resistant Bits (5) 166527-002 Solenoid 179189-001 Speaker 314227-001 Battery, real-time clock 129907-001 Expansion slot cover 141081-001 Computer mounting bracket 288461-001...

  • Page 59: Cables

    238472-005 Italy 292657-061 Denmark 292657-081 Japan 292657-191 Sweden 292657-111 China 292657-AA1 Power Switch Cable Assembly (2), includes power cable with 314218-001 LEDs, power switch, and switch holder. *Not illustrated. Compaq Deskpro EN Series. Small Form Factor and Net PC Models...

  • Page 60: Standard And Optional Boards

    Standard and Optional Boards Spare Part Warranty Description Number Tier System Board 314213-001 Intel Pentium II Microprocessor with MMX technology 300/66 MHz 314222-001 333/66 MHz 314223-001 350/100 MHz 314224-001 400/100 MHz 314225-001 DIMM, 100 MHz non-ECC SDRAM, standard 16 MB 166969-001 32 MB 166890-001...

  • Page 61: Keyboards

    Latin American Spanish 269513-161 Norwegian 269513-091 Polish 269513-241 Portuguese 269513-131 Russian 269513-251 Slovakian 269513-231 Spanish 269513-071 Swedish 269513-101 Swiss 269513-111 Taiwanese 269513-AB1 Thai 269513-281 Turkish 269513-141 U.K. 269513-031 *Not illustrated Compaq Deskpro EN Series. Small Form Factor and Net PC Models...

  • Page 62: Mass Storage Devices

    U.S. only 288433-001 International 314273-002 3.10 Documentation and Software Spare Part Warranty Description Number Tier Documentation (Small Form Factor and Net PC Models) Maintenance & Service Guide 314271-001 Illustrated Parts Map 314272-002 Software Compaq Restore CD 339914-002 3-10 Illustrated Parts Catalog...

  • Page 63: Removal And Replacement Preliminaries

    11,000 V 21,000 V *Dual Inline Packaging (DIP) is the packaging around individual microcircuitry. These are then multi-packaged inside plastic tubes, trays, or Styrofoam. 700 volts can degrade a product. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 64: Preventing Electrostatic Damage To Equipment

    4.1.2 Preventing Electrostatic Damage to Equipment Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following proper packaging and grounding precautions are necessary to prevent damage to electric components and accessories. „ To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.

  • Page 65: Recommended Materials And Equipment

    4. Always turn off the computer before cleaning the keyboard, mouse, or air vents. 5. Disconnect the keyboard before cleaning it. 6. Wear safety glasses equipped with side shields when cleaning the keyboard. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 66: Cleaning The Computer Case

    4.2.2 Cleaning the Computer Case Follow all safety precautions in Section 4.2.1 before cleaning the computer. 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 67: Cleaning The Mouse

    If an incorrect screw is used during the reassembly process, it can damage the unit. Compaq strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.

  • Page 68: Cables And Connectors

    Handle hard drives as delicate precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares. „ Use only the packaging provided by Compaq for shipping. „ Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective packaging until they are actually mounted in the CPU.

  • Page 69: Removal & Replacement Procedures

    Serial Number Provide the computer serial number to Compaq when requesting information or ordering spare parts. The serial number is displayed on the top of the system unit cover at the right front corner and also on the rear of the computer.

  • Page 70: Installing The Personal Computer

    Installing the Personal Computer There are three different methods of mounting the computer in a work area: self-mounting, mounting bracket, and the drawer install method. 5.2.1 Self-Mounting Method CAUTION: The computer power switch should be turned off before you disconnect any cables. To mount the computer directly to a work area, complete the following steps: 1.
  • Page 71 CAUTION: Carefully clean the cavity of the chassis to remove any foreign particles before reinstalling the computer components. 14. Reinstall the balance of the computer components and the system unit cover. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 72: Mounting Bracket Method

    5.2.2 Mounting Bracket Method CAUTION: Do not mount the computer upside down when using this method. To install the optional mounting bracket, complete the following steps: 1. Position the mounting bracket in the desired area and mark through the mounting holes to accurately locate where the fasteners will be installed.
  • Page 73 Installing the Mounting Bracket in a Vertical Mode Vertical Mounting Method Compaq Deskpro EN Series, Small Form Factor and Net PC Models...
  • Page 74 Installing the Mounting Bracket in a Horizontal Mode Horizontal Mounting Method The computer may now be inserted into the mounting bracket. The cable lock provision may be used with this option. Refer to Section 5.6 for more information. For more information, refer to the document supplied with the option kit. Removal &...

  • Page 75: Drawer Installation Method

    5. There should also be at least one inch of clear space above the top of the chassis. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 76: Disassembly Sequence Chart

    Disassembly Sequence Chart Preparation for Disassembly 5.4.1 Unlocking the Smart Cover Lock Computer Feet Cable Lock System Unit Cover Hood Latch Retainer Expansion Board Cage 5.10 Expansion Board 5.11 Easy Access Power Supply 5.12 System Board 5.13.1 DIMM Memory Module 5.13.2 Graphics Memory 5.13.3...

  • Page 77: Preparation For Disassembly

    Keep all screws with the units removed. CAUTION: The screws used in the computer are of different thread sizes and lengths; using the wrong screw in an application may damage the unit. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 78: Unlocking The Smart Cover Lock

    2. If you enabled the Smart Cover Lock and cannot enter your password to disable the lock, you will need a Smart Cover FailSafe Key (Compaq spare P/N 166527-001 or 166527-002) to open the computer cover. You will also need the key in any of the following circumstances: „...
  • Page 79 Unlock the solenoid 3 before replacing the cover. Reattaching the Smart Cover Lock 6. Press the solenoid pin in (at arrow) to unlock the solenoid. Unlocking the Solenoid 7. Replace the cover. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-11...

  • Page 80: Computer Feet

    Computer Feet 1. Remove the four rubber feet mounted to the underside of the chassis. 2. If necessary, scrape the residue of the old feet from the chassis using a small, flat-bladed screwdriver. 3. Remove the protective strip from the adhesive on the back of the new feet and press them into place.

  • Page 81: Cable Lock Installation

    Install a cable lock (not provided) to secure the computer to a fixed object. Installing the Cable Lock To remove the cable lock provision, reverse the removal procedure. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-13...
  • Page 82 The cable lock provision may be used with the mounting bracket option. Using the Cable Lock with the Mounting Bracket 5-14 Removal & Replacement Procedures...

  • Page 83: System Unit Cover

    2. Slide the cover forward about 1-inch (2.5-cm); then, lift it up and off the unit. Removing the System Unit Cover To replace the cover, reverse the removal procedure. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-15...

  • Page 84: Hood Latch Retainer

    Hood Latch Retainer 1. Prepare the computer for disassembly (Section 5.4). 2. Remove the system unit cover (Section 5.7). 3. Press chassis in at the arrow to release the drive cage latch then tilt the Easy Access Drive Cage to an upright position. 4.

  • Page 85: Expansion Board Cage

    When installing the expansion board cage, ensure that the riser card is secure in its slot, and ensure that the tab on the cage latches into the slot on the side of the power supply. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-17...

  • Page 86: Expansion Board

    5.10 Expansion Board The Net PC model (top) has two PCI expansion slots 1. The Small Form Factor model (bottom) has one PCI 1 and one PCI/ISA combination slot 2. 1. Prepare the computer for disassembly (Section 5.4). 2. Remove the system unit cover (Section 5.7). 3.

  • Page 87: Easy Access Power Supply

    5. Continue with the balance of the installation sequence, which is the reverse of the installation process described above. When installing the expansion board cage, ensure that the tab on the cage latches into the slot on the side of the power supply. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-19...

  • Page 88: System Board

    5.12 System Board 1. Prepare the computer for disassembly (Section 5.4). 2. Remove the system unit cover (Section 5.7). 3. Remove the expansion board cage 1 (Section 5.9). 4. Press the side of the chassis at the arrow to release latch, then tilt the Easy Access Drive Cage 2 to an upright position.

  • Page 89: System Board Components

    4. Press chassis in (at arrow) 1 to release drive cage latch, then tilt the drive cage to an upright position 2. Tilting the Easy Access Drive Bay Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-21...
  • Page 90 5. Slide the system board about 1- to 2-inches (2.5- to 5.1-cm) out of the rear of the chassis. It is not necessary to disconnect any cables from the system board for this operation. 6. Press outward on both latches of the DIMM socket at the same time. This releases the module and partially pushes it out of the socket.

  • Page 91: Graphics Memory

    7. Change the resolution to take advantage of the additional display modes now available with the upgraded memory. Refer to “Supported Graphics Resolutions,” in Chapter 7, “Specifications,” for more information. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-23...

  • Page 92: Microprocessor

    5.13.3 Microprocessor 1. Prepare the computer for disassembly (Section 5.4). 2. Remove the system unit cover (Section 5.7). CAUTION: To reduce the risk of personal injury from hot surfaces, allow the internal system components to cool before touching. 3. Press chassis in at the arrow to release drive cage latch, then tilt the drive cage to an upright position.

  • Page 93: Replacement Battery

    8. Plug in the computer and turn on power. 9. If you normally lock the Smart Cover Lock, use Computer Setup to relock it. 10. Reset the date and time, your passwords, and any special system setups, using Compaq Computer Setup. Refer to Chapter 2, “Software Reference.”...

  • Page 94: Power Switch Cable Components

    5.15 Power Switch Cable Components 5.15.1 Switch Cable Assembly The switch cable assembly consist of two parts: the switch mounting bracket assembly and the switch cable. 1. Prepare the computer for disassembly (Section 5.4). 2. Remove the system unit cover (Section 5.7). 3.
  • Page 95 This is marked on the rear of the mounting bracket. CAUTION: Compaq does not recommend removing the switch from the mounting bracket. To install the switch cable assembly, reverse the removal steps.

  • Page 96: Switch Mounting Bracket Assembly

    The two parts are spared as unassembled components, and must be assembled prior to installation. CAUTION: Compaq does not recommend removing the switch from the mounting bracket. 1. Align the switch 1 with the opening in the back 2 of the mounting bracket and push the two pieces together.

  • Page 97: Smart Cover Lock Solenoid

    3. Remove the switch cable assembly Section 5.15.1). 4. Remove the screws 1 and 2 that secure the solenoid 3 to the chassis. Use the tamper resistant wrench (Compaq Part Number 166527-001) or the special bit (Compaq Part Number 166527- 002) 5.

  • Page 98: System Unit Cover Assembly

    5.16 System Unit Cover Assembly The system unit cover assembly consists of the system unit cover, front bezel. quick release cover latches , power button, and CD-ROM bezel blank (Small Form Factor model only. Net PC models do not feature a CD-ROM drive). 5.16.1 Front Bezel and Cover Release Buttons 1.

  • Page 99: Power Button

    The spring will follow the button out of the housing. Removing the Power Button (Small Form Factor Shown) To replace the power button, reverse the removal procedure. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-31...

  • Page 100: Bezel Blank

    5.16.3 Bezel Blank This operation applies to the Small Form Factor model only. 1. Prepare the computer for disassembly (Section 5.4). 2. Remove the system unit cover (Section 5.7). 3. Place the system unit cover with the top down on a protected work surface. Squeeze together the sides of the right end of the bezel blank to release the catches.

  • Page 101: Mass Storage Devices

    2. Remove the system unit cover (Section 5.7). 3. Disconnect the power 1 and data 2 cables from the back of the drive. Disconnecting the Power and Data Cables from the 3.5-Inch Diskette Drive Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-33...
  • Page 102 4. Pull the drive release latch on the right side of the drive towards the center of the adjacent drive bays, slide the drive to the rear of the bay, then lift the drive from the bay. Removing the 3.5-Inch Diskette Drive When replacing this drive, transfer the four guide screws that take the place of drive rails from the old drive to the new one.

  • Page 103: 5.25-Inch Slimline Cd-Rom Drive

    5. 3. Disconnect the CD-ROM flat ribbon cable from the back of the drive. Disconnecting the CD-ROM Flat Ribbon Cable from the CD-ROM Drive Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-35...
  • Page 104 4. Pull the drive release latch on the left side of the drive toward the center of the adjacent drive bays, slide the drive to the rear of the bay then, then lift the drive from the bay. Removing the CD-ROM Drive When replacing this drive, transfer the four wafer-head screws—two on each side of the drive—...
  • Page 105 8. If this is a new installation, raise the drive cage to the upright position and connect the flat ribbon cable to the system board. Connecting the Flat Ribbon CD-ROM Cable to the System Board Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-37...
  • Page 106 12. Remove the bezel blank from the front bezel (Section 5.16.3). 13. Install the system unit cover (Section 5.7). 14. The system will automatically recognize the Slimline CD-ROM drive sold by Compaq, then will automatically reconfigure the computer. If you have installed a third-party drive that is not a plug and play device, you must run Computer Setup to reconfigure the computer.

  • Page 107: 3.5-Inch Hard Drive

    4. Tilt the drive bay to the upright position. 5. Disconnect the cables from the back of the drive. Disconnecting the Cables from the Back of the Hard Drive Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-39...
  • Page 108 6. Move the drive release latch on the right side of the drive to the right, slide the drive to the rear of the bay, then, lift the drive from the bay. Removing the Hard Drive When replacing this drive, transfer the four screws that take the place of drive rails from the old drive to the new one.

  • Page 109: Easy Access Drive Cage

    8. Lift the drive cage 5 from the chassis. Removing the Drive Cage To replace the drive cage, reverse the removal procedure. Compaq Deskpro EN Series, Small Form Factor and Net PC Models 5-41...

  • Page 110: Speaker Removal

    5.19 Speaker Removal 1. Prepare the computer for disassembly (Section 5.4). CAUTION: When the computer is plugged into an AC power source, there is always voltage applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.

  • Page 111: Connector, Jumper, And Switch Information

    Power Cable Solenoid and LED Connector CR15 5V Aux LED Internal Audio Speaker Connector CR18 5V Main LED CD-ROM Audio Processor Speed Switches Wake On LAN XBT1 External Battery Diskette Drive Connector Processor Socket Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 112: Sw1 Switch Settings

    6.1.2 SW1 Switch Settings Switch SW1 allows you to: „ Enable or disable the power-on password (S1). Setting Function Disable Password Enable Password (Default setting) „ Set processor speeds after processor upgrade (S2-S5). 66-MHz 100-MHz S2 CAUTION: Do not configure the system board to operate faster than the speed at which the processor is rated.

  • Page 113: System Board Jumpers

    To change the system board jumpers, you must remove the system unit cover. For assembly and disassembly procedures, refer to Chapter 5. 6.2.1 Jumper Locations Location of the E50 Jumper and Pins 1-3 on the System Board Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 114: Clearing Configuration

    You will need to reset the passwords. Hard Drive Jumper Settings For more information about Compaq hard drives, refer to Appendix C in this guide. \ 6.3.1 Seagate, Fujitsu, and Western Digital The drawings and tables below apply to a number of different sized drives in the following paragraphs.

  • Page 115: Maxtor

    Primary (in a dual-drive system) J Secondary Cable Select disabled* enabled 4092 Cylinder Limitation disabled* enabled Factory Reserved Factory Reserved * = default setting J = jumper O = no jumper Compaq Deskpro EN Series, Small Form Factor and Net PC Models...
  • Page 116 Primary (in a dual-drive system) J Secondary Cable Select disabled* enabled 4092 Cylinder Limitation disabled* enabled Factory Reserved Factory Reserved * = default setting J = jumper O = no jumper Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 117: Specifications

    8% to 90% Nonoperating 5% to 95% 5% to 95% Maximum Altitude (unpressurized) Operating 10,000 ft 3048 m Nonoperating 30,000 ft 9144 m Heat Dissipation (maximum) 470 Btu/hr 1.97 kg-cal/min Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 118: Interrupts

    7.1.2 Interrupts Hardware IRQ System Function Timer Interrupt (Not on ISA Bus) Keyboard (Not on ISA Bus) Interrupt Controller Cascade (Not on ISA Bus) Unused Serial Port (COM 1) Unused Diskette Drive Parallel Port (LPT 1) Real-Time Clock (Not on ISA Bus) Unused Unused PCI Interrupt...

  • Page 119: I/O

    Unused 132 - 16F Unused 170 - 177 Reserved 178 - 1EF Unused 1F0 - 1F7 Fixed Disk Controller 1F8 - 1FF Unused Unused Unused 202 - 21F Unused Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 120: Memory Map

    I/O Address (Hex) System Function (Shipping Configuration) 220 - 22F Unused 230 - 277 Unused 278 - 27F Reserved Parallel Port 280 - 2E7 Unused 2E8 - 2EF Reserved Serial Port 2F0 - 2F7 Unused 2F8 - 2FF Reserved Serial Port 300 - 317 Unused 318 - 319...

  • Page 121: Mass Storage Devices

    <9.7 <9.7 Full Stroke (ms) 18.0 18.0 Disk Rotational Speed (rpm) 5200 5200 Buffer Size (KB) The hard drive is fully partitioned with each partition being 2.0-GB or less. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 122: Max Slimline Cd-Rom Drive (Small Form Factor Model Only)

    CD-ROM mode1, mode 2 Mixed mode (audio and data combined) CD-DA Photo CD (single and multi-session) CDi ready CD-XA ready Compaq Spare Part Number 314214-001 Disc Diameter 12 cm, 8 cm Capacity 550-MB, mode 1, 12 cm 640-MB, mode 2, 12 cm...

  • Page 123: Audio System (Small Form Factor Only)

    8-/16-bit (mono/stereo) µ-Law 16-bit (mono/stereo) Compaq Enhanced Keyboard Dimensions Height 1.50 in 3.81 cm Width 18.00 in 45.72 cm Depth 6.50 in 16.51 cm Weight 3.5 lb 1.59 kg Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 124: Two-Button Mouse

    Two-Button Mouse Dimensions Height 1.34 in 3.4 cm Length 4.45 in 11.3 cm Width 2.36 in 6.0 cm Weight 4.59 oz 130 g Base Resolution 400 dpi 400 dpi Tracking Speed (maximum) 10 in/sec 25 cm/sec Temperature Operating 32°F to 104°F 0°C to 40°C Storage -4°F to 140°F...

  • Page 125: Connector Pin Assignments

    Data Bit 3 Data Bit 4 Data Bit 5 Data Bit 6 Data Bit 7 Acknowledge Busy Paper End Select Auto Linefeed Error Initialize Printer Select IN 18-25 Signal Ground Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 126: Serial Interfaces

    Serial Interfaces Connector and Icon Signal Carrier Detect Receive Data Transmit Data Data Terminal Ready Signal Ground Data Set Ready Request to Send Clear to Send Ring Indicator Monitor Connector Signal Red Analog Green Analog Blue Analog Monitor ID Bit2 15 14 13 12 11 Ground Ground Analog...

  • Page 127: Ethernet Aui

    Connector and Icon Signal (+) Transmit Data (-) Transmit Data (+) Receive Data Unused Unused (-) Receive Data Unused Unused USB Connector Connector and Icon Signal - Data + Data Ground Compaq Deskpro EN Series, Small Form Factor and Net PC Models...
  • Page 128 IDE/EIDE Drive Cable Pin Signal Pin Signal Pin Signal 1 RESET 15 DD1 29 DMAK 2 GND 16 DD14 30 GND 3 DD7 17 DD0 31 INTRQ 4 DD8 18 DD15 32 IOCS16 5 DD6 19 GND 33 DA1 6 DD9 20 (KEY) 34 PDIAG (80-pin cable detect) 7 DD5...

  • Page 129: Power Cord Set Requirements

    Belgium (1) CEBC Norway (1) NEMKO Canada (2) Sweden (1) SEMKO Denmark (1) DEMKO Switzerland (1) Finland (1) SETI United Kingdom (1) France (1) United States (2) Germany (1) Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 130: Appendix C Hard Drives

    1, or secondary drive. This designation is necessary because both drives cannot work simultaneously. SMART The SMART IDE hard drives for the Compaq Deskpro Personal Computers have built-in drive failure prediction that warns the user or the network administrator of an impending failure or crash of the hard drive.

  • Page 131: Appendix D Diagnostic Error Codes

    The following table lists the device codes (AABB-CC) and the subtest range (AABB-CC) covered by Compaq Diagnostics Tests. Some codes will not apply to the computers described in this manual and will not be detailed in the tables that follow.

  • Page 132: Test Error Codes

    The remaining tables list possible error codes, descriptions of each error condition, and actions required to resolve the error condition. Retest the system after completing each step. If the problem has been resolved, do not proceed with the remaining steps. For assistance in the removal and replacement of a particular subassembly, see Chapter 5, “Removal and Replacement Procedures.”...

  • Page 133: Parallel Printer

    0604–xx Diskette random seek test failed. 0605–xx Diskette ID media test failed. 4. Replace system board and retest. 0606–xx Diskette speed test failed. 0610–xx Diskette change line test failed. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 134: Serial Port

    Serial Port Codes Description Recommended Action 1101-xx Serial port test failed. 1. Run Computer Setup or Windows NT or Windows 95 utilities 2. Replace system board and retest. Modem Communications Codes Description Recommended Action (1201-1210) 1201-xx Modem internal test failed. 1.
  • Page 135 1. Replace video board and retest. 2468-xx Advanced VGA DAC test. 2. Replace system board and retest. 2477-xx Advanced VGA data path test. 2478-xx Advanced VGA BitBLT test. 2480-xx Advanced VGA Linedraw test. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 136: Network Interface

    Audio Codes Description Recommended Action 3206-xx Audio System Internal Error. Replace system board and retest. When Windows 95 is installed, changes to ESS sound device configuration do not take effect until the computer is restarted (turned off and on). Network Interface Codes Description Recommended Action (6000-6089)

  • Page 137: Scsi Error Codes

    Hard Drive 66xx-xx CD-ROM Drive and PD-CD Drive 67xx-xx Tape Drive SCSI Test Names xx00-xx xx05-xx Read xx06-xx SA/Media xx-xx Controller xx09-xx Media erase xx23-xx Random read xx28-xx Media load/unload Compaq Deskpro EN Series, Small Form Factor and Net PC Models...
  • Page 138 SCSI Test Error Codes Code Description Recommended Action xxxx-02 Drive not installed. Check cable connections. xxxx-03 Media not in drive. Check for and install a data CD or write-enabled tape in drive. xxxx-05 Seek failure. Replace indicated device. xxxx-06 Drive timed out. Replace indicated device.
  • Page 139 1. Ensure proper air flow. 2. Perform required maintenance and cleaning. xxxx-99 Autoloader reported tapes not loaded 1. Install tape(s) in autoloader tape drive properly. according to test instructions. 2. Change autoloader magazine. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 140: Post Error Messages

    Windows 95 utilities. 2. Replace the memory module(s) (if any). 3. Replace system board. 205-Memory Error None Cache memory error Run the Configuration and Diagnostics (processor cache). utilities. L=Long, S=Short Compaq Deskpro EN Series, Small Form Factor and Net PC Models...
  • Page 141 206-Secondary None Cache memory Run the Configuration and Diagnostics cache controller failure controller or RAM failure. utilities. 207-ECC corrected Single Bit ECC error Replace DIMM if error persists. single bit error 213-Incompatible DIMM is not fully Replace DIMM. DIMM module compliant with SPD standard or is electrically incompatible with the...
  • Page 142 Hard drive error or Run the Configuration and Diagnostics wrong drive type. utilities. 1791-Disk 1 Failure None Hard drive error or Run the Configuration and Diagnostics wrong drive type. utilities. L=Long, S=Short Compaq Deskpro EN Series, Small Form Factor and Net PC Models...
  • Page 143 1792-Secondary Disk None Hard drive circuitry Run the Configuration and Diagnostics Controller Failure error. utilities. 1793-Secondary None Hard drive circuitry Run the Configuration and Diagnostics Controller or Disk error. utilities. Failure 1800-Temperature None Internal temperature Check that computer air vents are not Alert exceeds specification.

  • Page 144: Troubleshooting Without Diagnostics

    Computer does not The real-time clock (RTC) battery may need to be replaced. See Chapter automatically display the 5 for replacement procedures. date and time. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 145: Diskette Drive

    Diskette Drive Problem Possible Solution Diskette drive light stays on. 1. Diskette might be damaged. In Windows NT, run Disk Administrator. At the Start menu, highlight Programs and select Administrator Tools. In Windows 95, run ScanDisk. At the Start menu, highlight Programs, select Accessories, then select System Tools.
  • Page 146 If the graphics controller was upgraded, the correct display drivers may not resolution cannot be set. be loaded. Install the correct display drivers on the diskette included in the upgrade kit. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...
  • Page 147 Picture is broken up, rolls, 1. Be sure the monitor cable is securely connected to the computer. jitters, or blinks. 2. In a 2-monitor system or if another monitor is in close proximity, be sure the monitors are not interfering with each other's magnetic field by moving them apart.

  • Page 148: Hard Drive

    Insert a bootable diskette into the diskette drive and restart the computer. 3. Diskette boot has been disabled in Computer Setup. Run Computer Setup and enable diskette boot. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 149: Hardware Installation

    Hardware Installation Problem Possible Solutions New device is not 1. Computer Setup utility has not been run to configure the new device. recognized as part of Run the Computer Setup utility. the computer system. 2. When the system advised you of changes to the configuration, you did not accept them.
  • Page 150 Replace the controller or the system board. defective. Network drivers are not Boot the computer without the network drivers, loaded. using a system boot diskette, and reconfigure the network controller. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...
  • Page 151 Diagnostics reports Possible I/O address conflict Factory default is 300h to 30Fh for Ethernet. Either a failure. with another expansion remove and reconfigure the conflicting expansion board. board, or reconfigure the network controller. If the address is changed, ensure that the drive parameters match the new I/O address for the network controller.
  • Page 152 Network controller is Replace the network controller or system board. defective. Compaq Deskpro EN Series, Small Form Factor and Net PC Models...

  • Page 153: Resolving Audio Hardware Conflicts

    Resolving Audio Hardware Conflicts Hardware conflicts occur when two or more peripheral devices contend for the same signal lines or channels. Conflicts between the audio interface and another peripheral device may be due to the settings of the base I/O addresses, interrupts, or DMA channels. The audio interface typically has the following settings: Item Setting...
  • Page 154 COM B connector, 1-8 processor, 1-3 Compaq Diagnostics for buttons Windows, 2-10 power, 2-28 Compaq Insight Manager and 6.4-GB Ultra ATA hard drive the Insight Management spare part number, 3-10 Agents, 2-31 Compaq Insight Personal cable Edition, 2-10...
  • Page 155 computer mounting bracket specifications, 7-5 spare part number, 3-6 troubleshooting without delimiter characters, 2-18 Computer Setup diagnostics, F-2 design overview, 1-4 replicating, 2-28 display Desktop Management Computer Setup Utilities, 2-4 troubleshooting without Interface (DMI), 2-31 using, 2-5 diagnostics, F-3 device 0/device 1 relationship, Configuration Codes Net PC, 1-2 specifications, 7-2...
  • Page 156 2-16 map, 3-8 self-mounting method, 5-2 optional, 1-3, 3-8 generating static, 4-1 Intelligent Manageability removal and replacement, graphics Enhanced Compaq Insight 5-21 memory, spare part number Personal Edition, 2-10 spare part number, 3-8 features, 1-3 standard, 1-3 specifications, 7-8...
  • Page 157 troubleshooting without troubleshooting without POST diagnostics, F-4 diagnostics, F-7 error messages, E-1 video, 3-8 Network interface, 1-3 power memory, graphics network interface controller troubleshooting without removal and replacement, (NIC) diagnostics, F-1 5-23 spare part number, 3-8 power button microphone configuring for suspend, spare part number, 3-6 2-28 microphone pin assignments,...
  • Page 158 Remote Security Management, recovery from ROM upgrade soft-drive type, C-1 2-27 failure, 2-25 software remote system installation, remote, 2-24 Compaq Restore CD, 3-10 2-14 ROMPaq diskette, 2-24 preloaded, 1-4 remote system installation, required, 4-5 2-14 software recovery, 2-12 remote wakeup and remote...
  • Page 159 miscellaneous plastics kit, removal and replacement, tools 5-28 required, 4-5 modem, 3-8 switches troubleshooting mouse, 3-6 location on system board, CD-ROM drive, F-7 network interface controller diskette drive, F-2 (NIC), 3-8 system display, F-3 power cord, 3-7 DMA, 7-2 hard drive, F-5 power supply, 3-3 interrupts, 7-2 hardware conflicts, F-10...

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