Compaq 141536-002 - Deskpro EN - MT RAMBUS Maintenance And Service Manual
Convertible minitower models
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Also See for 141536-002 - Deskpro EN - MT RAMBUS:
- Hardware reference manual (48 pages) ,
- Configuration manual (152 pages) ,
- Software reference manual (58 pages)
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Summary of Contents for Compaq 141536-002 - Deskpro EN - MT RAMBUS
- Page 1 Maintenance & Service Guide Compaq Deskpro EN Series of Personal Computers Convertible Minitower Models...
- Page 2 The complete MSG follows this addendum. This addendum contains changes to the original document. 2000 Compaq Computer Corporation. COMPAQ and the Compaq logo Registered in U. S. Patent and Trademark Office. Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.
- Page 3 Spare Part Numbers Spare Part Warranty Description Number Tier Intel Celeron microprocessor 566 MHz/66 MHz with heatsink and retainer clip 203967-001 Graphics Controller nVIDIA TNT2 PRO, 16-MB SGRAM 179997-001 System board without onboard graphics or audio 217055-001 (011032-101) 10-GB Ultra ATA hard drive, 5400 RPM, Quiet Drive 203139-001 Audio cover 219817-001...
- Page 4 Specifications – Graphics Controller nVIDIA TNT2 Pro Graphics Controller Resolution Real-Time 3D Refresh Rate/Display Shading Vertical Horizontal 640 x 480 256, 65K, 16.7M 60 – 200 Hz 31 – 102 kHz 800 x 600 256, 65K, 16.7M 60 – 200 Hz 38 –...
- 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 from the processor, the old thermal interface must be completely removed and a new one installed in its place. Before installing a heatsink, prepare for its installation by doing one of the following: New heatsink: if the heatsink has a thermal interface attached to its bottom, peel off the protective paper before installing the heatsink.
- Page 6 Maintenance & Service Guide Compaq Deskpro EN Series of Personal Computers Convertible Minitower Models...
- Page 7 2000 Compaq Computer Corporation. Printed in the U.S.A. COMPAQ, the Compaq logo, and Deskpro Registered U. S. Patent and Trademark Office. Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation. Intel and Pentium are registered trademarks of Intel Corporation.
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Page 8: Table Of Contents
ONTENTS preface About This Guide Symbols and Conventions ......................vii Technician Notes ........................vii Locating Additional Information..................... viii chapter 1 Product Description 1.1 Model Overview ......................1-2 1.2 System Design......................... 1-2 1.3 Preinstalled Software ...................... 1-3 1.3.1 Ordering Additional Software ................1-3 1.4 Computer Features ...................... - Page 9 3.2 Routine Care ........................3-4 3.2.1 General Cleaning Safety Precautions ..............3-4 3.2.2 Cleaning the Computer Case ................3-4 3.2.3 Cleaning the Keyboard ..................3-5 3.2.4 Cleaning the Monitor..................3-5 3.2.5 Cleaning the Mouse .................... 3-5 3.3 Service Considerations....................3-6 3.3.1 Power Supply Fan....................
- Page 10 6.2.1 1.44-MB Diskette Drive ..................6-6 6.2.2 Ultra ATA Hard Drives ..................6-7 6.2.3 CD-ROM Drives....................6-8 6.3 Compaq Keyboards......................6-9 6.4 2-Button 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...
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Page 11: Symbols And Conventions
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: Locating Additional Information
Locating Additional Information The following documentation is available to support these products: User Documentation Technical Training Guides Compaq Service Advisories and Bulletins Compaq QuickFind Technical Reference Guide Compaq Quick Reference Guide Compaq Service Reference Guide Compaq Quick Troubleshooting Guide viii... -
Page 13: Product Description
RODUCT ESCRIPTION This chapter describes the model features of the Compaq Deskpro EN Series Convertible Minitower model of Personal Computers. Compaq Deskpro EN Series of Personal Computers... -
Page 14: Model Overview
Model Overview Compaq Deskpro EN Series of Personal Computers ships as a minitower. It contains the unique, flexible Compaq ATX chassis, which allows you to easily reconfigure the unit as a desktop by (1) removing the drives from the computer, (2) setting the unit on its base, (3) rotating the drives and bezel blanks 90 degrees, then (4) reinserting the drives into the drive bays. -
Page 15: Preinstalled Software
The annual subscription provides continuous access to the latest developments. ✎ When calling Compaq to place an order, be sure to have the serial number of the computer available. This number is necessary for all purchases. Compaq Deskpro EN Series of Personal Computers... -
Page 16: Computer Features
Computer Features Compaq Deskpro EN Series of Personal Computers ship with a mouse and keyboard. Some models are also equipped with a CD-ROM drive. A Compaq color monitor or other compatible monitor does not ship with the computer. 1.4.1 Front Panel Controls and LEDs... -
Page 17: Rear Panel Connectors
1.4.2 Rear Panel Connectors < Compaq Deskpro EN Series of Personal Computers... -
Page 18: Drive Positions
1.4.3 Drive Positions 1, 2 4, 5 ✎ Drive bay numbers are stamped on the chassis. To verify the type and size of the mass storage devices installed in the computer, run Compaq Computer Setup. Product Description... -
Page 19: Serial Number Location
EEPROM on the system board and may be accessed through Diagnostics for Windows. ✎ If the system board is replaced with a spare part from Compaq, the invalid serial number condition will be recognized during POST. The original serial number must then be reentered through Computer Setup. -
Page 20: Locating Additional Information
Locating Additional Information The following documentation is available to support these products: User Documentation Technical Training Guides Compaq Service Advisories and Bulletins Compaq QuickFind Technical Reference Guide Compaq Quick Reference Guide Compaq Service Reference Guide Compaq Quick Troubleshooting Guide Product Description... -
Page 21: Spare Parts
PARE ARTS ✎ The Compaq Deskpro EN Series, Intel 815e chipset models will be referred to in this MSG as 815e. Compaq Deskpro EN Series of Personal Computers... -
Page 22: System Unit
System Unit System Unit Spare Parts Spare Parts... -
Page 23: Mass Storage Devices
Mass Storage Devices Mass Storage Devices ✎ Ultra ATA/100 hard drives are backwards compatible with Ultra ATA/66 devices; however, the data transfer rate is reduced to 66MB/sec. Compaq Deskpro EN Series of Personal Computers... -
Page 24: Cables
Cables Cables MEJD MEJD MEJD Spare Parts... -
Page 25: Standard, Memory, And Expansion Boards
Standard, Memory, and Expansion Boards Standard, Memory, and Expansion Boards Compaq Deskpro EN Series of Personal Computers... -
Page 26: Keyboards
Keyboards Keyboards (not illustrated) Spare Parts... -
Page 27: Miscellaneous Screw Kit
Miscellaneous Screw Kit Miscellaneous Screw Kit Compaq Deskpro EN Series of Personal Computers... -
Page 28: Miscellaneous Plastics Kit
Miscellaneous Plastics Kit Miscellaneous Plastics Kit Spare Parts... -
Page 29: Miscellaneous Parts
Miscellaneous Parts Miscellaneous Parts Compaq Deskpro EN Series of Personal Computers... -
Page 30: Shipping Boxes
Shipping Boxes Shipping Boxes (not illustrated) 2.10 Documentation and Software Documentation and Software (not illustrated) 2-10 Spare Parts... -
Page 31: Electrostatic Discharge Information
3.1.1 Generating Static The following table shows that: Different activities generate different amounts of static electricity. Static electricity increases as humidity decreases. ✎ ✎ ✎ ✎ 700 volts can degrade a product. Compaq Deskpro EN Series of Personal Computers... -
Page 32: Preventing Electrostatic Damage To Equipment
3.1.2 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 33: Grounding Workstations
Static awareness labels Wrist straps and footwear straps providing one-megohm +/- 10% resistance Material handling packages Conductive plastic bags Conductive plastic tubes Conductive tote boxes Opaque shielding bags Transparent metallized shielding bags Transparent shielding tubes Compaq Deskpro EN Series of Personal Computers... -
Page 34: Routine Care
Routine Care 3.2.1 General Cleaning Safety Precautions 1. Never use solvents or flammable solutions to clean the computer. 2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. 3. -
Page 35: Cleaning The Keyboard
Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out any debris 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. Compaq Deskpro EN Series of Personal Computers... -
Page 36: Service Considerations
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 37: Cables And Connectors
Do not disassemble, crush, puncture, short external contacts, dispose in water or fire, or expose it to temperatures higher than 140ºF (60ºC). CAUTION: Batteries, battery packs, and accumulators should not be disposed of together with the general household waste. Compaq Deskpro EN Series of Personal Computers... -
Page 38: Removal And Replacement Procedures
Disassembly Sequence Chart Use the chart below to determine the disassembly sequence for removing components from the computer. ♦ ♦ ♦ ♦ ♦ Must remove all drives before removing drivelock. Compaq Deskpro EN Series of Personal Computers... -
Page 39: Disassembly Preparation
For more information, refer to Chapter 3, “Removal and Replacement Preliminaries.” ✎ The Compaq Deskpro EN Series, Intel 815e chipset models will be referred to in this MSG as 815e. Removal and Replacement Procedures... -
Page 40: Feet Installation
To install a new logo plate, align the guide pins in the slots 1, then press into place. ✎ When replacing the logo plate, ensure that the alignment pins are properly placed in the front bezel before pressing the logo plate into position. Compaq Deskpro EN Series of Personal Computers... -
Page 41: Cable Lock
Cable Lock WARNING: To avoid injury, use care in handling the separated pieces of the cable lock bracket; metal edges may be sharp. Be sure to install the bracket so that sharp edges do not extend from the edges of the computer chassis. Depending on the model, the computer includes a cable lock provision, which consists of a three-piece security bracket. -
Page 42: Access Panel
3. Loosen the two thumbscrews that secure the access panel to the back of the computer chassis. 4. Slide the access panel backward approximately 1-inch (2.5-cm); then lift it up and off the unit. To replace the access panel, reverse the previous steps. Compaq Deskpro EN Series of Personal Computers... -
Page 43: Front Bezel
Front Bezel 1. Prepare the computer for disassembly (Section 4.2). 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. -
Page 44: Power Button
5. Pinch the two tabs of the power button together and pull the button out of the front bezel. The spring will follow the button out of the housing. To replace the power button, reverse the above procedure. Compaq Deskpro EN Series of Personal Computers... -
Page 45: Subpanel And Bezel Blanks
Subpanel and Bezel Blanks The subpanel and bezel blanks must be removed from the front bezel if you are installing a mass storage device for the first time, or if you are converting the unit from a desktop to a minitower configuration or from a minitower to a desktop configuration. WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. -
Page 46: Power Switch
6. Push the release tab 2 toward the drive bays, then remove the power switch assembly from the chassis. To install the new power switch, reverse the above procedure, pushing the switch assembly until it snaps into place. The power/LED connector is keyed to ensure proper installation. Compaq Deskpro EN Series of Personal Computers... -
Page 47: Mass Storage Devices
4.11 Mass Storage Devices The Compaq Deskpro EN Series of Personal Computers support up to five drives in various configurations. Drive Positions ✎ Drive bay numbers are stamped on the chassis. To verify the type and size of the mass storage devices installed in the computer, run Computer Setup. - Page 48 Compaq-supplied metric screws are black. Using the Cable-Select Feature with Ultra ATA Devices Optional drives are available from Compaq in kits that include a special drive cable. The configuration of the drives employs a cable-select feature that identifies the drives as device 0 (primary drive) or device 1 (secondary drive).
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Page 49: Removing An Internal 3.5-Inch Hard Drive
4.11.1 Removing an Internal 3.5-Inch Hard Drive 1. Prepare the computer for disassembly (Section 4.2). 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. - Page 50 When installing a second ATA hard drive on the primary controller, you must use an 80-conductor ATA cable for optimal performance. The system automatically recognizes hard drives sold by Compaq (or any other plug and play hard drive) and will automatically reconfigure the computer. If you installed a third- party hard drive, or one that is not a plug and play device, you must run Computer Setup to reconfigure the computer.
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Page 51: Removing An External 5.25-Inch Drive
4.11.2 Removing an External 5.25-Inch Drive 1. Prepare the computer for disassembly (Section 4.2). 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. - Page 52 4. Remove the bezel blank from the subpanel, if necessary (Section 4.9). 5. Reinstall the subpanel and the front bezel. The system automatically recognizes hard drives sold by Compaq (or any other plug and play hard drive) and will automatically reconfigure the computer. If you installed a third- party hard drive, or one that is not a plug and play device, you must run Computer Setup to reconfigure the computer.
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Page 53: Removing An External 3.5-Inch Drive
4.11.3 Removing an External 3.5-Inch Drive If you are installing a second 3.5-inch diskette drive into 5.25-inch bays #1 or 2 for the first time, you must use a special adapter bracket. If you are installing a 3.5-inch diskette drive into 5.25-inch bay #3, you must use a special adapter bracket. - Page 54 10. Slide the drive to the rear of the drive adapter until the diskette drive eject button is free of the button protector, then lift the drive out of the drive adapter. 11. Remove the guide screw from the right side of the drive. Compaq Deskpro EN Series of Personal Computers 4-17...
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Page 55: Removing The Drivelocks
To replace the drive, reverse the previous procedures. ✎ The primary 3.5-inch diskette drive should only be installed into bay 3. Bay 3 is the bottom bay in the minitower and the topmost bay in the desktop configuration. When replacing the drive, use the existing screws. Metric screws (M3) have a black finish while U.S. - Page 56 CAUTION: The spring contained under the drivelock mechanism may pop out unexpectedly. 8. Remove the drivelock from the drive cage. 9. Remove the spring from the drivelock (see inset). Compaq Deskpro EN Series of Personal Computers 4-19...
- Page 57 10. Press in on the tabs to release the vertical drivelock from the chassis, then lift it up and out of the system while at the same time rotating the drivelock slightly to clear the travel slots at the bottom of the drivelock. 11.
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Page 58: Expansion Boards
4.13 Expansion Boards 4.13.1 Expansion Board Slots Compaq Deskpro EN Series of Personal Computers 4-21... -
Page 59: Removing A Pci Expansion Board
4.13.2 Removing a PCI Expansion Board 1. Prepare the computer for disassembly (Section 4.2). 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. -
Page 60: Installing A Pci Expansion Board
2. Lay the computer down on its large base (side with feet) for greater stability. 3. Remove the access panel (Section 4.6). 4. If you are installing an expansion board for the first time, remove the expansion slot cover. Compaq Deskpro EN Series of Personal Computers 4-23... - Page 61 5. Hold the board at each end and carefully rock it back and forth while pushing downward, until the connectors fit completely and firmly into the expansion slot. 6. Secure the board to the chassis with the retaining screw. 7. Attach any cables that came with the board. ✎...
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Page 62: Board Guide
5. Push down on the two tabs on the side of the board guide. 6. While holding the tabs down, remove the guide from the chassis. To replace the board guide, reverse the above procedures. Compaq Deskpro EN Series of Personal Computers 4-25... -
Page 63: Internal Speaker
4.15 Internal Speaker 1. Prepare the computer for disassembly (Section 4.2). 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. -
Page 64: System Memory
3. Remove the access panel and locate the memory module sockets. WARNING: To reduce risk of personal injury from hot surfaces, allow the internal system components to cool before touching. Compaq Deskpro EN Series of Personal Computers 4-27... - Page 65 4. 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.
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Page 66: Graphics Cards
4. Pull the arm on the right side of the retention mechanism 1. 5. At the same time, rotate the front of the GPA/AIMM card up until it is at a 45 degree angle 2. 6. Remove the card from the expansion slot 3. Compaq Deskpro EN Series of Personal Computers 4-29... - Page 67 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.
- Page 68 Misalignment may result in damage to the card or the AGP connector. 7. While pulling the arm on the right side of the retention mechanism 5, rotate the card down into the expansion slot until seated 6. Compaq Deskpro EN Series of Personal Computers 4-31...
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Page 69: Agp Card With A Type I Retention Mechanism
4.17.2 AGP Card with a Type I Retention Mechanism Removing an AGP Card 1. Prepare the computer for disassembly (Section 4.2). 2. Lay the computer down on its large base (side with feet) for greater stability. 3. Remove the access panel (Section 4.6). 4. -
Page 70: Gpa/Aimm Card With A Type 2 Retention Mechanism
4. Pull the arm on the right side of the retention mechanism. 5. Pull the card straight up to remove it from the expansion slot. To install the graphics card, reverse the above procedures. Compaq Deskpro EN Series of Personal Computers 4-33... -
Page 71: Agp Card With A Type 2 Retention Mechanism
4.17.4 AGP Card with a Type 2 Retention Mechanism Removing an AGP Card 1. Prepare the computer for disassembly (Section 4.2). 2. Lay the computer down on its large base (side with feet) for greater stability. 3. Remove the access panel (Section 4.6). 4. -
Page 72: Standard Agp Expansion Card
3. Remove the access panel (Section 4.6). 4. Remove the screw at the top of the expansion slot. 5. Remove the AGP graphics board as you would any PCI expansion board (Section 4.13.2). Compaq Deskpro EN Series of Personal Computers 4-35... -
Page 73: Processor
4.18 Processor Before installing a processor, make sure the release latches are in the locked position. This will cause the processor to make an audible sound when it is properly seated in the retaining clip. 1. Prepare the computer for disassembly (Section 4.2). 2. -
Page 74: System Board
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). 1. Prepare the computer for disassembly (Section 4.2). -
Page 75: Battery
9. Reassemble the computer. 10. Reconnect the AC power cord and turn on the computer. 11. Reset the date and time, your passwords, and any special system setups, using Compaq Computer Setup. WARNING: This computer contains a lithium-ion battery pack. There is a risk of fire and chemical burn if the battery pack is handled improperly. -
Page 76: Chassis Fan Assembly
7. Pull on the two push-pins that secure the fan grill to remove it from the fan. To install the fan assembly, reverse the above procedure. ✎ This fan is used on units with 933 MHz and faster processors. Compaq Deskpro EN Series of Personal Computers 4-39... -
Page 77: Power Supply
4.22 Power Supply 1. Prepare the computer for disassembly (Section 4.2). 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. -
Page 78: Converting A Desktop To A Minitower
2. Lay the computer down on its large base (side with feet) for greater stability. 3. Remove the access panel (Section 4.6). 4. Remove the front bezel (Section 4.7). 5. Remove the drives from the 5.25-inch drive bays by pressing drivelock 1 (Sections 4.11.2 and 4.11.3). Compaq Deskpro EN Series of Personal Computers 4-41... - Page 79 6. Rotate the drives 90 degrees, then reinstall them into the drive bays. ✎ The diskette drive should always be placed in bay number 3, the bay nearest the internal 3.5-inch drives, for proper placement within the chassis. CAUTION: The use of unnecessary force may result in damage to the drives. 7.
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Page 80: Converting A Minitower To A Desktop
5. Disconnect all power and data cables from the drives in the 5.25-inch drive bays. 6. Remove the drives from the 5.25-inch drive bays by pressing drivelock 2 (Sections 4.11.2 and 4.11.3). Compaq Deskpro EN Series of Personal Computers 4-43... - Page 81 7. Rotate the drives 90 degrees, then reinstall them into the drive bays. ✎ The diskette drive should always be placed in the bay nearest the top of the chassis in the desktop configuration for proper drive clearance and access. CAUTION: The use of unnecessary force may result in damage to the drives.
- Page 82 CAUTION: Hold the subpanel straight when you pull it away from the front bezel. Pulling the subpanel away at an angle could damage the pins that align it within the front bezel. 10. Replace the subpanel, front bezel, and the computer access panel. Reassemble the computer. Compaq Deskpro EN Series of Personal Computers 4-45...
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Page 83: Connectors & Jumpers
ONNECTORS AND UMPERS This chapter provides connect or, jumper, and switch information for system board jumpers, system I/O board connectors, and hard drives for the Convertible Minitower model. System Board 5.1.1 Connectors and Jumpers Compaq Deskpro EN Series of Personal Computers... -
Page 84: Clearing Cmos
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 jumper SW50. To clear and reset the configuration, perform the following procedure: 1. Prepare the computer for disassembly (Section 4.2). CAUTION: The power cord must be disconnected from the power source before pushing the Clear CMOS Button (NOTE: All LEDs on the board should be OFF). -
Page 85: Disabling Or Clearing The Power-On And Setup Passwords
The video display must be active before the computer can be powered off. CAUTION: Unplugging the power cord during POST can corrupt the splash screen. Flashing the ROM is required to restore the splash screen, although the computer will continue to function. Compaq Deskpro EN Series of Personal Computers... -
Page 86: Hard Drive Jumper Settings
Hard Drive Jumper Settings 5.2.1 Seagate, Quantum, and Western Digital The drawings and tables below apply to a number of different size drives in the following paragraphs. Seagate, Quantum, and Western Digital Ultra ATA Hard Drive Jumper Settings Connectors and Jumpers... -
Page 87: Maxtor
5.2.2 Maxtor Maxtor Ultra ATA Hard Drive Jumper Settings Compaq Deskpro EN Series of Personal Computers... -
Page 88: Specifications
PECIFICATIONS Specifications 6.1.1 System ° ° ° ° ° ° Compaq Deskpro EN Series of Personal Computers... -
Page 89: System Interrupts
6.1.2 System Interrupts 6.1.3 System DMA Specifications... -
Page 90: Ich Fixed I/O Registers
6.1.4 ICH Fixed I/O Registers continued Compaq Deskpro EN Series of Personal Computers... - Page 91 ICH Fixed I/O Registers cont continued Specifications...
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Page 92: System Memory Map
ICH Fixed I/O Registers cont NOTE: 6.1.5 System Memory Map Compaq Deskpro EN Series of Personal Computers... -
Page 93: Drives
Drives 6.2.1 1.44-MB Diskette Drive Specifications... -
Page 94: Ultra Ata Hard Drives
6.2.2 Ultra ATA Hard Drives Compaq Deskpro EN Series of Personal Computers... -
Page 95: Cd-Rom Drives
6.2.3 CD-ROM Drives Specifications... -
Page 96: Compaq Keyboards
Compaq Keyboards 2-Button Mouse ° ° ° ° ° ° ° ° Compaq Deskpro EN Series of Personal Computers... -
Page 97: Supported Graphics Resolutions
Supported Graphics Resolutions 6.5.1 Intel 3D Graphics 6.5.2 nVIDIA TNT 3D AGP 6-10 Specifications... -
Page 98: Chapter 7 Service Notes
(run much slower) if it exceeds a much higher than normal operating temperature. Second, the processor will shut down when it reaches 135 degrees C to prevent damage. If Compaq’s DMI software is installed, the user receives a warning about any elevated temperature in the processor. -
Page 99: Service Notes
7. Each time the system boots, 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 called “power button override.”... -
Page 100: Index
Index computer external 3.5-inch drive cleaning, 3-4 removal and replacement, access panel Computer Features 4-16 removal and replacement, drive positions, 1-6 external 5.25-inch drive Front Panel Controls and removal and replacement, AGP card LEDs, 1-4 4-14 spare part number, 2-5 Rear Panel Connectors, 1-5 AGP retention mechanism, 4-29 configurations, drives, 4-10... - Page 101 I/O Registers, 6-3 passwords, disabling or clearing, screws INSPECT utility, 1-6, 4-10 using correct, 3-6 IRQ settings, 6-2 power button. See miscellaneous serial number plastics kit need for service call, 1-3 removal and replacement, serial number location, 1-7 service considerations, 3-6 power button spring.
- Page 102 sub-panel. See miscellaneous plastics kit tools subpanel and bezel blanks required, 3-6 removal and replacement, system design, 1-2 Ultra ATA devices, 4-11 specifications, 6-1 system board connector locations, 5-1 connectors and jumpers, 5-1 spare part number, 2-5 system specifications DMA, 6-2 I/O, 6-3 memory map, 6-5 Index...
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