Compaq 470007-802 Deskpro EN Series of Personal Computers - Slim Desktop Model
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- Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 1
Maintenance & Service Guide Compaq Deskpro EN Series of Personal Computers Slim Desktop Models - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 2
Addendum #1 to Deskpro EN Maintenance & Service Guide Compaq Deskpro EN Series of Personal Computers Slim Desktop Part number 192128-002 Spare part number 201842-001 The complete MSG follows this addendum. This - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 3
Audio cover Spare Part Number 203967-001 179997-001 217055-001 203191-001 219817-001 Warranty Tier B B B B D ✎ System board 217055-001 does not support front-mounted audio. Computers with this board installed will not have a speaker mounted in the chassis but will have a piezo speaker mounted on - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 4
Specifications - Graphics Controller Nvidia TNT2 Pro Graphics Controller Resolution Real-Time 3D Shading 640 x 480 800 x 600 1024 x 768 1152 x 864 1280 x 1024 1600 x 1200 1800 x 1440 1920 x 1080 1920 x 1200 256, 65K, 16.7M 256, 65K, 16.7M 256, 65K, 16.7M 256, 65K 256, 65K 256 65K 256 256/65K - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 5
Service Notes ! WARNING: Removing the heatsink from the processor destroys the integrity of the thermal interface pad between the two parts. Whenever the heatsink is removed - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 6
Maintenance & Service Guide Compaq Deskpro EN Series of Personal Computers Slim Desktop Models - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 7
agreement or nondisclosure agreement. The software may be used or copied only in accordance with the terms of the agreement. Maintenance & Service Guide Compaq Deskpro EN Series of Personal Computers Slim Desktop Models Second Edition (September 2000) First Edition (June 2000) Part Number 192128 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 8
CONTENTS preface About This Guide Symbols and Conventions ...vii Technician Notes ...vii Locating Additional Information viii chapter 1 Product Description 1.1 Product Features...1-2 1.1.1 Front Panel Controls and LEDs 1-2 1.1.2 Rear Panel Connectors 1-3 1.1.3 Drive - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 9
3.3 Service Considerations...3-5 3.3.1 Power Supply Fan 3-5 3.3.2 Tools and Software Requirements 3-5 3.3.3 Screws...3-5 3.3.4 Cables and Connectors 3-6 3.3.5 Hard Drives ...3-6 3.3.6 Lithium Coin Cell Battery 3-6 chapter 4 Removal & Replacement Procedures 4.1 Disassembly Sequence Chart 4-2 4.2 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 10
6-3 6.1.5 System Memory Map 6-5 6.2 Drives...6-6 6.2.1 Diskette Drive...6-6 6.2.2 Ultra ATA Hard Drives 6-7 6.2.3 CD-ROM Drive 6-8 6.3 Compaq Keyboards...6-9 6.4 Compaq Scroll Mouse...6-9 6.5 Supported Graphics Resolutions 6-10 6.5.1 Intel 3D Graphics 6-10 6.5.2 nVIDIA TNT 3D AGP 6-10 chapter - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 11
ABOUT THIS GUIDE This Maintenance & Service Guide is a troubleshooting and repair guide that can be used for reference when servicing the Compaq instructions. Technician Notes ! WARNING: Only authorized technicians trained by Compaq should attempt to repair this equipment. All troubleshooting - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 12
is available to support these products: I User Documentation I Technical Training Guides I Compaq Service Advisories and Bulletins I Compaq QuickFind I Technical Reference Guide I Compaq Quick Reference Guide I Compaq Service Reference Guide I Compaq Quick Troubleshooting Guide viii About This - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 13
1 chapter PRODUCT DESCRIPTION This chapter describes the model features of the Compaq Deskpro EN Series Slim Desktop model of Personal Computers. Compaq Deskpro EN Series of Personal Computers 1-1 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 14
1.1 1.1.1 Product Features The Slim Desktop 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. Front Panel Controls and LEDs 1 Power-On Light Turns on when power to the computer - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 15
1.1.2 Rear Panel Connectors 1 Voltage Select Switch 2 Power Cord Connector 3 Universal Serial Bus (USB) Connectors 4 Keyboard Connector 5 Parallel Port Connector 6 Mouse Connector 7 Monitor Connector 8 Serial Connector 9 Serial Connector : Ethernet RJ-45 Connector ; Microphone - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 16
1.1.3 Drive Positions 1 Standard 5.25-inch drive bay for optional drives 2 Standard 3.5-inch, third-height bay for optional hard drive 3 Standard 5.25-inch drive bay for optional drives 4 Standard 3.5-inch, third-height, standard, 1.44-MB diskette drive bay 5 Standard 3.5-inch, third-height, - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 17
1.2 Serial Number Location Provide the computer serial number to Compaq when requesting information or ordering spare parts. The serial number is displayed on the rear of the computer below the expansion slots 1 and also on the top of the computer access panel 2. Compaq Deskpro EN Series of Personal - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 18
is available to support these products: I User Documentation I Technical Training Guides I Compaq Service Advisories and Bulletins I Compaq QuickFind I Technical Reference Guide I Compaq Quick Reference Guide I Compaq Service Reference Guide I Compaq Quick Troubleshooting Guide 1-6 Product - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 19
2 chapter SPARE PARTS This chapter provides an illustrated parts breakdown and a reference for spare parts for the Slim Desktop model. 2.1 System Unit Description 1 Access panel 2 Chassis assembly 3 Front bezel 4 Front panel trim 5 Smart cover lock solenoid with cable 6 Speaker 7 Power supply, 200 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 20
2.2 Mass Storage Devices Description 1 3.5-inch, 1.44-MB, buttonless diskette drive 2 48X Max IDE CD-ROM drive, opal 3 10.0-GB ATA/66 7200 RPM hard drive * 15.0-GB ATA/66 7200 RPM hard drive * 20.0-GB ATA/100 7200 RPM hard drive *Not shown. Spare Part Number 191714-001 187263-001 135364-001 192060 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 21
2.3 Cables Description Cable Kit, includes: 1 Diskette drive data cable, 11 (143218-001) * Single connection cable (108950-007) (not used with this product) * Holder switch (166777-001) (not used with this product) * Dual-LED, power (387727-001) (not used with this product) * 40-position data - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 22
2.4 Standard, Memory, and Expansion Boards Description 1 Nvidia 16MB SDRAM AGP Card Memory Module (SDIMM, 133 MHz) 2 64 MB * 128 MB * 256 MB Intel Pentium III Processor 3 667/133 MHz with heatsink and clip 3 733/133 MHz with heatsink and clip * 800/133 MHz with fansink (191845-002). - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 23
2.5 Keyboards Description * Easy Access Keyboard-US * USB Easy Access Keyboard-US * Enhanced, Smart Card-US * Basic, Smart Card-US * Spacesaver, Opal * Arabic * Belgian * Brazilian * BHCSY (Bosnia-Herzegovina, Croatia, Slovenia, and Yugoslavia) * Czech * Danish * Dutch/Netherlands * Finnish * - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 24
2.6 Miscellaneous Screw Kit Description Miscellaneous Screw Kit, includes: * 6-32 x 1/4 hi-top, thread-forming screw with serrations (4 ea.) (192308-001) * 6-19 x 5/16 panhead, plastite screw (5 ea.) (101346-068) * 6-19 x .5/16 hi-top, taptite screw with captive washer (4 ea.) (114399-069) - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 25
2.7 Miscellaneous Plastics Kit Description Miscellaneous Plastics Kit, includes: 1 Bezel blank (2 ea.) (166775-001) 2 Front panel trim (piece below front bezel) (161056-001) 3 Rubber foot (4 ea.) (166939-002) * Screw (for front panel trim) (2 ea.) (192308-001) *Not shown. Spare Part Number 201271- - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 26
2.8 Miscellaneous Parts Description 1 Power switch board with cable 2 Smart cover lock solenoid with cable 3 Speaker, 40x70, 12, with cable 4 Battery 5 Two-button scroll mouse 6 Active fansink, includes fan, heatsink, and clip (for use with 800MHz+ processors) * Chassis fan assembly (for use with - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 27
Description PC Return kit (shipping box with packing) Documentation and Software Description Documentation Maintenance & Service Guide Illustrated Parts Map Service Reference Guide Quick Troubleshooting Guide Spare Part Number 207742-001 Warranty Tier A Spare Part Number 201842-001 203721-001 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 28
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 there is always voltage applied to the system board. You must disconnect the power - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 29
3.1.2 3.1.3 3.1.4 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 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 30
such as ordinary plastic assembly aids and Styrofoam. ! Use field service tools, such as cutters, screwdrivers, and vacuums, that are Static-dissipative table or floor mats with hard tie to ground ! Field service kits ! Static awareness labels ! Wrist straps and footwear straps providing one-megohm - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 31
3.2.2 3.2.3 3.2.4 Cleaning the Computer Case Follow all safety precautions in Section 3.2.1 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. ! For stronger stains - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 32
from the ball socket and wipe the ball with a clean dry cloth before reassembly. ! To clean the mouse body, follow the procedures in 3.2.2. Service Considerations Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer. Power - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 33
or snagged by parts being removed or replaced. CAUTION: When servicing this computer, ensure that cables are placed in their proper about three years. See Chapter 4, "Removal and Replacement Procedures," for instructions on the replacement procedures. ! WARNING: This computer contains a lithium- - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 34
4 chapter REMOVAL & REPLACEMENT PROCEDURES This chapter provides subassembly/module level removal and replacement procedures for the Slim Desktop model. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 35
4.1 Disassembly Sequence Chart 4.3 Unlocking the Smart Cover Lock 4.4 Computer Feet 4.5 Cable Lock 4.6 Access Panel 4.7 Front Bezel 4.8 Front Panel Trim 4.9 Bezel Blank 4.10 Memory Module 4.11✱ Expansion Cards 4.12✱ Graphics Cards 4.13 5.25-Inch Drives 4.14 Rotate Drive Cage 4. - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 36
4.2 Preparation for Disassembly See Chapter 3, "Removal and Replacement Preliminaries," for initial procedures. 1. Unlock Smart Cover Lock (Section 4.3). 2. Close any open software applications. 3. Exit Windows. 4. Remove any diskette or compact disc from the computer. 5. Turn off the computer and - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 37
4.3 Unlocking the Smart Cover Lock The Smart Cover Lock is a software-controllable cover lock. This lock prevents unauthorized access to the internal components when the Smart Cover Lock and setup password are enabled. If you enabled the Smart Cover Lock, use Computer Setup to unlock it. If you - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 38
1. Using the Smart Cover FailSafe Key, remove the top tamper-proof screw, and loosen the bottom tamper-proof screw only enough to allow the computer access panel to be removed. 2. Remove the access panel. To reattach the Smart Cover Lock, secure the lock in place with the tamper-proof screws. Compaq - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 39
4.4 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 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 40
4.5 Cable Lock Installation Depending on the model, the rear panel of the computer accommodates a cable lock so that the computer can be physically secured to a work area. 1. Loop the cable around a heavy, fixed object to which you want to secure the computer. 2. Insert the cable lock end of the - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 41
4.6 Access Panel 1. Prepare the computer for disassembly (Section 4.2). CAUTION: Turn off the computer before disconnecting any cables. 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 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 42
4.7 Front Bezel 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. From the inside of the unit, remove the two screws from the left side of the front bezel 1. ✎ A Torx T15 screwdriver with small diameter shank is required to remove the screws that - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 43
4.8 Front Panel Trim 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Remove the front bezel (Section 4.7). 4. Remove the two screws connecting the trim to the front of the base pan 1. 5. Remove the trim from the computer 2. To install the trim, - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 44
4.9 Removing a Blank Drive Bezel 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Squeeze together the release catches 1 to release the bezel blank, then remove the bezel blank 2. Compaq Deskpro EN Series of Personal Computers 4-11 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 45
DIMMs must be industry-standard 168-pin, unbuffered PC100- or PC133- compliant SDRAM DIMMs, depending on the model. The SDRAM DIMMs must support CAS Latency 2 or 3 (CL = 2 or CL = 3). They must also contain the mandatory Joint Electronic Device Engineering Council (JEDEC) Serial Presence Detect (SPD - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 46
3. Open both latches of the memory module socket 1, and insert the memory module into the socket 2. Begin by installing a module into the socket nearest the preinstalled module, and install the modules following the numerical order of the sockets. A memory module can be installed in only one way. - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 47
4.11 Expansion Cards 4.11.1 Removing an Expansion Slot Cover 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Locate the correct vacant expansion card slot on the back of the computer. 4. Remove the screw at the top of the expansion slot cover, - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 48
If not installing a new expansion card, skip to step 10. 8. To install a new expansion card in an open slot, remove the expansion slot cover (Section 4.11.1). 9. Slide the expansion card into the expansion slot and press it firmly into place. ✎ When you install an expansion card, make sure you - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 49
4.12 Graphics Cards 4.12.1 The AGP expansion slot may come with a retention mechanism installed around it to hold graphics cards securely in place. There are two different types of retention mechanisms that may be installed around the AGP expansion slot. Graphics Performance Accelerator (GPA)/AGP - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 50
Installing a GPA/AIMM Card WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the power source or the unit before beginning disassembly procedures. 1. Prepare the computer for - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 51
5. With the GPA/AIMM card at a 45 degree angle, slide the card toward the back of the expansion slot 4 until the fingers on the bottom of the card line up properly with the connectors in the expansion slot. CAUTION: The fingers on the bottom of the GPA/AIMM card must be properly aligned with the - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 52
4.12.2 AGP Card with a Type I Retention Mechanism Removing an AGP Card 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Remove the screw at the top of the expansion slot. 4. Pull the arm on the right side of the retention mechanism. 5. Pull the card - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 53
4.12.3 GPA/AIMM Card with a Type 2 Retention Mechanism Removing a GPA/AIMM Card 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Pull the arm on the right side of the retention mechanism. 4. Pull the card straight up to remove it from the expansion - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 54
4.12.4 AGP Card with a Type 2 Retention Mechanism Removing an AGP Card 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Remove the screw at the top of the expansion slot. 4. Pull the arm on the right side of the retention mechanism. 5. Pull the card - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 55
4.12.5 Standard AGP Expansion Card Removing an AGP Card 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Remove the screw at the top of the expansion slot. 4. Remove the AGP graphics board as you would any PCI expansion board (Section 4.11). To - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 56
4.13 5.25-Inch Drives 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. 1. Prepare the computer for - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 57
easily connect the drive power and signal cables. ✎ When installing optional drives, you must install guide screws to ensure the drive will line up correctly in the drive cage. Compaq has provided extra guide screws, installed in the base of the computer chassis, next to the power supply. ! WARNING - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 58
, such as IDE CD-ROM, tape, and diskette drives to the secondary controller. ! You must install guide screws to ensure the drive will line up correctly in the drive cage. Compaq has provided extra guide screws, installed in the base of the computer chassis, next to the power supply. Some options use - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 59
4.15.2 Diskette Drive 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. 1. Prepare the computer for - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 60
4.15.3 Hard Drive 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Rotate the drive cage to the upright position (Section 4.14). 4. Lift up to unlock the green drive release latch 1. 5. Slide the hard drive toward the center of the computer, then - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 61
4.16 System Board ✎ More information on the system board, including troubleshooting criteria, can be found in the Compaq Quick Troubleshooting Guide (part number 153837-001) and the Compaq Service Reference Guide (part number 152611-001). WARNING: Power is continuous to the system board and power - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 62
mailer preaddressed to a reclamation facility where the metals are recycled. Call the telephone number listed for your location in the Contacting Customer Support guide for more information. In Europe, do not dispose of batteries with general household waste. Dispose of or recycle them by using the - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 63
4.18 Power Button/LED Board 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Rotate the drive cage to the upright position (Section 4.14). 4. Disconnect the power cable from the system board 1. 5. Remove the two screws connecting the board to the - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 64
4.19 Hood Sensor 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Rotate the drive cage to the upright position (Section 4.14). 4. Disconnect the power cable from the system board 1. 5. Push the sensor toward the front of the computer 2. 6. Pull - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 65
4.20 Processor Assembly 1. Prepare the computer for disassembly (Section 4.2). 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 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 66
4.21 Speaker 1. Prepare the computer for disassembly (Section 4.2). 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 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 67
4.22 Power Supply WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the power source or the unit before beginning disassembly procedures. 1. Prepare the computer for disassembly ( - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 68
4.23 Chassis Fan Assembly ✎ The chassis fan is only used with 933MHz or faster processors. When properly installed, this fan blows air away from the computer. 1. Prepare the computer for disassembly (Section 4.2). 2. Remove the access panel (Section 4.6). 3. Disconnect the fan power cable - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 69
5 chapter CONNECTORS AND JUMPERS This chapter provides connect or, jumper, and switch information for system board jumpers, system I/O board connectors, and hard drives for the Slim Desktop model. 5.1 System Board 5.1.1 Connectors and Jumpers CR28 CR29 CR31 CR32 E49 SW50 P1 P5(pins 1-9) P5(pins 10- - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 70
5.1.2 Clearing CMOS The computer's configuration (CMOS) may occasionally be corrupted. If it does, it is necessary to clear the CMOS memory using switch SW50. To clear and reset the configuration, perform the following procedure: 1. Prepare the computer for disassembly (Section 4.2). CAUTION: The - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 71
password features, repeat steps 1-4, then replace the jumper on pins 1 and 2. 10. Repeat steps 6-8, then establish new passwords. Refer to the Computer Setup (F10 Setup) instructions to establish new passwords. Compaq Deskpro EN Series of Personal Computers 5-3 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 72
5.1.4 CMOS Archive and Restore (Power Switch Override) Each time the system starts, the system ROM saves a copy of NVRAM (including CMOS, passwords, and other system variables) in the flash ROM. Should the system become unstable, the last known good copy of NVRAM can be restored using a feature - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 73
5.2 5.2.1 Hard Drive Jumper Settings Seagate, Quantum, and Western Digital The drawings and tables below apply to a number of different size drives in the following paragraphs. Definition Single Seagate, Quantum, and Western Digital Ultra ATA Hard Drive Jumper Settings Seagate 7 - 8 Quantum 1 - - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 74
5.2.2 Maxtor Maxtor Ultra ATA Hard Drive Jumper Settings Definition J50 J48 J46 J44 J42 Single J Primary (in a dual-drive system) J Secondary O Cable Select Disabled* O Enabled J 4092 Cylinder Limitation Disabled* O Enabled J Factory Reserved O Factory Reserved O * = Default - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 75
, keyboard, and mass storage devices. System Specifications Dimensions Height Width Length 5.38 in 17.65 in 17.11 in Weight 26 lb Weight Supported (maximum distributed load) 100.0 lb Power Supply Operating Voltage Range Rated Voltage Range Rated Line Frequency 90-132 VAC 100-127 VAC 50-60 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 76
6.1.2 System Interrupts 6.1.3 Hardware IRQ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 System DMA System Function Timer Interrupt Keyboard Interrupt Controller Cascade Serial Port (COM B) Serial Port (COM A) Audio Diskette Drive Parallel Port (LPT 1) Real-Time Clock Available for PCI Available for PCI - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 77
6.1.4 ICH Fixed I/O Registers Port 00h, 02h, 04h, 06h C0h, C4h, C8h, CCh 01h, 03h, 05h, 07h C2h, C6h, Cah, CEh 10h-1Fh 20h 21h 24h-25h, 28-29h, 2Ch-2Dh, 30h-31h, 34h-35h, 38h-39h, 3Ch-3Dh 40h 41h 42h 43h 50h-53h 61h 70h 71h 72h 73h 74h-75h 76h-77h 81h, 82h, 83h 84h-86h, 88h 89h, 8Ah, 8Bh 8CH-8Eh - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 78
ICH Fixed I/O Registers cont Port Register Name A0h A1 A4h-A5h, A8h-A8h, ACh-ADh, B0h-B1h, B4h-B5h, B8h-B9h, BCh-BDh B2h B3h C0h, C4h, C8h, CCh C1h C5h C9h CDh C2h, C6h, CAh, CEh C3h C7h CBh CFh D0h D1h D4h D5h D6h D7h D8h D9h DAh DBh DCh DEh DEh DFh F0h 170h-177h 1F0h-1F7h 376h Slave PIC ICW1 - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 79
ICH Fixed I/O Registers cont Port Register Name 3F6h PIO Mode Control Block Offset for Primary Drive 4D0h Master PIC Edge/Level Triggered Register 3F6h PIO Mode Control Block Offset for Primary Drive 4D0h Master PIC Edge/Level Triggered Register 4D1h Slave PIC Edge/Level Triggered - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 80
6.2 6.2.1 Drives Diskette Drive Size and Capacity Size (in) High Density (MB) Low Density (KB) Compaq Spare Part Number Light Height (inches) Bytes per Sector Sectors per Track High Density Low Density Tracks per Side High Density Low Density Read/Write Heads Average Seek Time (m/s) Track-to-Track - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 81
6.2.2 Ultra ATA Hard Drives Formatted Capacity Physical (MB) Logical (MB) Compaq Spare Part Number Total Logical Sectors Logical Geometry Cylinders Heads Sectors Physical Geometry Cylinders Heads Sectors Data Bytes/Sector Sector Interleave ECC Bytes Recording MethodEPR4 Spin-Up Time (maximum) Spin - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 82
with multisession Operating Conditions Temperature Humidity 5 45 C 10-80% relative humidity Dimensions (mm) (HxWxD) 42.9x150.1x208 Weight (grams) 1200 MPEG Playback Graphics None Solution Support 6-8 Specifications - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 83
6.3 Compaq Keyboards Dimensions Height Width Depth Compaq Easy Access Compaq Enhanced 1.4 in 18.3 in 6.3 in 1.4 in 18.3 in 6.3 in Compaq Smart Card 1.4 in 18.3 in 6.3 in 6.4 Compaq Scroll Mouse Dimensions Height Length Width 1.48 in 4.76 in 2.44 in Weight Base Resolution 4.6 oz 400 dpi - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 84
6.5 6.5.1 6.5.2 Supported Graphics Resolutions Intel 3D Graphics Colors 640 x 480 800 x 600 1024 x 768 1152 x 864 1280 x 1024 1600 x 1200 256 85 Hz 85 Hz 85 Hz - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 85
7 chapter SERVICE NOTES CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under the keys. 1. The new Intel 815e chipset in these models is a high-performance, flexible technology that also provides stability for future models. This chipset supports PIII - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 86
! detailed F10 Setup help text via the F1 key ! enhanced storage support from F10 Setup, including: ! detailed device viewing information ! choice of none means "diskette" device type. ! new F10 Setup device information ! service password that allows for back-door, power-on capability in the event a - Compaq 470007-802 | Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 87
201842-001 192128-002
Compaq Deskpro EN Series
of Personal Computers
Slim Desktop Models
Maintenance &
Service Guide