Compaq EXS Series User Manual Page 1

Compaq Deskpro EX and Deskpro EXSSeries of Personal ComputersMinitower ModelsMaintenance &Service Guide

1-2 Product Description1.1 Computer FeaturesCompaq Deskpro EX Series of Personal Computers Minitower Model ships with a mouseand keyboard. Some models

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 1-31.1.2 Rear Panel ConnectorsRef. Component Ref. Component1Mouse Connector6Monitor Con

1-4 Product Description1.1.3 Drive PositionsReference Drive Bay Configuration1, 21, 2 Two standard 5.25-inch, half-height bays for optional drives33On

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 1-51.2 Serial Number LocationThe serial number and model information label is located o

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 2-1chapter 2SPARE PARTS

2-2 Spare Parts2.1 System UnitDescriptionSpare PartNumberWarrantyTier1 Access panel Not spared2 Front bezel 166868-001 B3 Chassis/basepan Not spared4

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 2-32.2 Mass Storage DevicesDescriptionSpare PartNumberWarrantyTier1 Diskette drive, 3.5

2-4 Spare Parts2.3 CablesDescriptionSpare PartNumberWarrantyTierCable Kit includes: 192264-001B1 Single device, hard drive/CD-ROM cable, 18”(108950-01

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 2-52.4 Standard, Memory, and Expansion BoardsDescriptionSpare PartNumberWarrantyTier1 N

2-6 Spare Parts2.5 Miscellaneous Plastics KitDescriptionSpare PartNumberWarrantyTierMiscellaneous Plastics Kit, includes: 166878-001 B1 Panel, sub (16

Maintenance &Service GuideCompaq Deskpro EX and Deskpro EXSSeries of Personal ComputersMinitower Models

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 2-72.6 Keyboards (not illustrated)DescriptionSpare PartNumberWarrantyTierEasy Access Ke

2-8 Spare Parts2.8 Miscellaneous Parts (not illustrated)DescriptionSpare PartNumberWarrantyTierMouse – Scroll, Opal 334689-002 D2.9 Shipping Boxes (no

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 3-1chapter 3REMOVAL & REPLACEMENT PRELIMINARIESThis chapter provides general servic

3-2 Removal & Replacement Preliminaries3.1.2 Preventing Electrostatic Damage to EquipmentMany electronic components are sensitive to ESD. Circuitr

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 3-3! Use fixtures made of static-safe materials when fixtures must directly contactdis

3-4 Removal & Replacement Preliminaries3.2.2 Cleaning the Computer CaseFollow all safety precautions in Section 3.2.1 before cleaning the computer

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 3-53.2.5 Cleaning the MouseBefore cleaning the mouse, ensure that the power to the com

3-6 Removal & Replacement Preliminaries3.3.4 Cables and ConnectorsMost cables used throughout the unit are flat, flexible cables. These cables mus

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-1chapter 4REMOVAL AND REPLACEMENT PROCEDURESThis chapter provides general service inf

4-2 Removal & Replacement Procedures4.2 Disassembly PreparationBefore adding any internal options or performing a removal/replacement: 1. Remove

Notice© 2000 Compaq Computer Corporation. Except for use in connection with the accompanying Compaq product, no part ofthis guide may be photocopied o

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-34.3 Feet InstallationFour (4) rubber feet are mounted to the chassis, as shown below

4-4 Removal & Replacement Procedures4.4 Cable LockWARNING: To avoid injury, use care in handling the separated pieces of the cable lockbracket; me

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-54.5 Access Panel 1. Prepare the computer for disassembly (Section 4.2).WARNING: Po

4-6 Removal & Replacement Procedures4.6 Front Bezel 1. Prepare the computer for disassembly (Section 4.2).WARNING: Power is continuous to the sy

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-74.7 Power Button 1. Prepare the computer for disassembly (Section 4.2).WARNING: Po

4-8 Removal & Replacement Procedures4.8 Subpanel and Bezel BlanksThe subpanel and bezel blanks must be removed from the front bezel if you are ins

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-94.9 Power Switch AssemblyCAUTION: The power switch should not be removed from the sw

4-10 Removal & Replacement Procedures4.10 Mass Storage DevicesThe Compaq Deskpro EX Series of Personal Computers support up to five drives invario

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-11When installing additional drives, follow these guidelines:! For optimal performan

4-12 Removal & Replacement Procedures4.10.1 Removing an Internal 3.5-Inch Hard Drive 1. Prepare the computer for disassembly (Section 4.2). 2. R

Contents iiiCONTENTSprefaceAbout This GuideSymbols and Conventions...

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-134.10.2 Removing an External 5.25-Inch Drive 1. Prepare the computer for disassemb

4-14 Removal & Replacement Procedures4.10.3 Removing an External 3.5-Inch DriveIf you are installing a second 3.5-inch diskette drive into 5.25-in

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-15 6. Remove the bracket brace 1 from the top of the drive adapter by squeezing inwa

4-16 Removal & Replacement Procedures4.11 Expansion Boards4.11.1 Expansion Board Slots1PCI expansion slots2AGP graphics slot

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-174.11.2 Removing a PCI Expansion Board 1. Prepare the computer for disassembly (Se

4-18 Removal & Replacement Procedures4.11.3 Installing a PCI Expansion Board 1. Prepare the computer for disassembly (Section 4.2).WARNING: Pow

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-19 5. Hold the board at each end and carefully rock it back and forth while pushing

4-20 Removal & Replacement Procedures4.12 System MemoryThe computer comes with synchronous dynamic random access memory (SDRAM) dualinline memory

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-21To install a memory module, complete the following steps: 1. Prepare the computer

4-22 Removal & Replacement Procedures4.13 Graphics CardsThe AGP expansion slot may come with a retention mechanism installed around it to holdthe

iv Contents3.3 Service Considerations ... 3-53.3.1 Po

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-23Installing a GPA/AIMM CardWARNING: Power is continuous to the system board and powe

4-24 Removal & Replacement Procedures 6. With the GPA/AIMM card at a 45 degree angle, slide the card toward the back of theexpansion slot 4 unti

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-254.13.2 AGP Card with a Type I Retention MechanismRemoving an AGP Card 1. Prepare

4-26 Removal & Replacement Procedures4.13.3 GPA/AIMM Card with a Type 2 Retention MechanismRemoving a GPA/AIMM Card 1. Prepare the computer for

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-274.13.4 AGP Card with a Type 2 Retention MechanismRemoving an AGP Card 1. Prepare

4-28 Removal & Replacement Procedures4.13.5 Standard AGP Expansion CardRemoving an AGP Card 1. Prepare the computer for disassembly (Section 4.2

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-294.14 Processor 1. Prepare the computer for disassembly (Section 4.2).WARNING: Po

4-30 Removal & Replacement ProceduresBefore installing a fansink, prepare for its installation by doing one of the following:• New heatsink: if t

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-314.15 System Board✎More information on the system board, including troubleshooting c

4-32 Removal & Replacement Procedures4.16 Battery 1. Prepare the computer for disassembly (Section 4.2). 2. Lay the computer down on its large

Contents vchapter 6Specifications6.1 Specifications...

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-334.17 Chassis Fan Assembly✎If the unit has a 866 - 933MHz processor, it requires an

4-34 Removal & Replacement Procedures4.18 Power Supply 1. Prepare the computer for disassembly (Section 4.2).WARNING: Power is continuous to th

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 5-1chapter 5CONNECTORS AND JUMPERSThis chapter provides connector, jumper, and switch i

5-2 Connectors and Jumpers5.1.2 Clearing CMOSThe computer's configuration (CMOS) may occasionally be corrupted. If it does, it isnecessary to cle

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 5-35.1.3 Disabling or Clearing the Power-On and Setup Passwords 1. Turn off the comp

5-4 Connectors and Jumpers5.2 Hard Drive Jumper Settings5.2.1 Seagate, Quantum, and Western DigitalThe drawings and tables below apply to a number of

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 5-55.2.2 MaxtorMaxtor Ultra ATA Hard Drive Jumper SettingsDefinition J50 J48 J46 J44 J4

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 6-1chapter 6SPECIFICATIONS6.1 Specifications6.1.1 SystemDimensionsHeightWidthDepth17.65

6-2 Specifications6.1.2 System InterruptsHardware IRQ System Function0 Timer Interrupt1 Keyboard2 Interrupt Controller Cascade3 Serial Port (COM B)4 S

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 6-36.1.4 ICH Fixed I/O RegistersPort Register Name00h, 02h, 04h, 06h Channel 0, 1, 2, 3

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers viiprefaceABOUT THIS GUIDEThis Maintenance & Service Guide is a troubleshooting and

6-4 SpecificationsICH Fixed I/O Registers contPort Register NameCF9h Reset Control RegisterA0h Slave PIC ICW1 Init. Cmd Word 1 RegisterSlave PIC OCW2

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 6-5ICH Fixed I/O Registers contPort Register Name1F0h-1F7h PIO Mode Command Block Offse

6-6 Specifications6.2 Drives6.2.1 1.44-MB Diskette DriveSize and CapacitySize (in)High Density (MB)Low Density (KB)3.51.44720Compaq Spare Part Number2

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 6-76.2.2 Ultra ATA Hard Drives10.0 GB 15.0 GBFormatted CapacityPhysical (MB)Logical (MB

6-8 Specifications6.2.3 CD-ROM Drives48X MaxCompaq Spare PartNumber187263-001Data Buffer (ms)16.6Data Transfer Rate150 KB/s Min (audio)CD: 3000-7200 K

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 6-96.3 Compaq KeyboardCompaq Easy AccessDimensionsHeightWidthDepth1.4 in18.3 in6.3 in6

6-10 Specifications6.5 Supported Graphics Resolutions6.5.1 Intel 3D GraphicsColors 256 65K 16.7M640 x 48085 Hz 85 Hz 85 Hz800 x 60085 Hz 85 Hz 85 Hz10

Index I-1IndexAaccess panelremoval and replacement,4-5AGP cardspare part number, 2-3AGP retention mechanism, 4-22AIMM cardspare part number, 2-3Bbatte

I-2 IndexMmemoryremoval and replacement,4-20spare part number, 2-3standard, 2-3memory map, 6-5microprocessorspare part number, 2-3miscellaneous screw

viii About This GuideLocating Additional InformationThe following documentation is available to support these products: User Documentation Technical

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 1-1chapter 1PRODUCT DESCRIPTIONThis chapter describes the model offerings and features