Compaq DESKPRO 1000 User Manual

MAINTENANCE& SERVICE GUIDECompaq Deskpro 1000Series of Personal Computers

1-2 Product Description1.1 Compaq Deskpro 1000 Series of Personal Computer ModelsThe Compaq Deskpro 1000 Series of Personal Computers is available

Compaq Deskpro 1000 Series of Personal Computers 1-31.2 FeaturesTable 1-2FeaturesItem DescriptionProcessorSpeed (MHz)Intel Pentium Processor with M

1-4 Product DescriptionTable 1-2 continuedItem DescriptionPower supply 200 watt, 115 VAC, 6.0 A/230 VAC, 3.0 APower supply fan StandardInternal piezo

Compaq Deskpro 1000 Series of Personal Computers 1-51.4 Preloaded SoftwareThis computer is shipped with Windows 95 installed as the operating system.T

1-6 Product Description1.5.2 Drive PositionsFigure1-3. Drive Positions on the Compaq Deskpro 1000 Desktop Computer1One 3.5-inch 1.44-MB diskette driv

Compaq Deskpro 1000 Series of Personal Computers 1-71.5.3 Rear Panel ConnectorsFigure 1-4. Rear Panel Connectors1Voltage Select Switch (115 V U.S. or

1-8 Product Description1.6 Enhanced KeyboardFigure 1-5. Enhanced Keyboard1Ctrl Used in combination with another key. Its effect depends on thesoftwar

Compaq Deskpro 1000 Series of Personal Computers 2-1chapter 2TROUBLESHOOTINGThis chapter provides troubleshooting information for the Compaq Deskpro 1

2-2 TroubleshootingTable 2-1Power-On Self-Test MessagesMessage Probable Cause Recommended ActionThe computerbeeps:the beep consists ofcontinuous longb

Compaq Deskpro 1000 Series of Personal Computers 2-3Table 2.1 ContinuedMessage Probable Cause Recommended ActionHard Disk(s)Diagnosis FailureThe syste

CPSNoticeThe information in this guide is subject to change without notice.COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICALOR EDITORIAL E

2-4 Troubleshooting2.2 CMOS Setup UtilityThe Award BIOS chip contains the ROM setup information of your computer and serves as aninterface between the

Compaq Deskpro 1000 Series of Personal Computers 2-52.2.1 Preparing the ComputerIf you encounter an error condition, complete the following steps befo

2-6 TroubleshootingWas a nonbootable diskette loaded in the diskette drive at power-up?Are all switch settings correct?Have all jumper settings

Compaq Deskpro 1000 Series of Personal Computers 2-72.3.3 Diskette Drive ProblemsThis section identifies some quick checks for diskette drive–related

2-8 Troubleshooting2.3.4 Display ProblemsThis section identifies some quick checks for display-related problems.Table 2-4Solutions for Display Problem

Compaq Deskpro 1000 Series of Personal Computers 2-92.3.5 Printer ProblemsThis section identifies some quick checks for printer-related problems.Table

2-10 Troubleshooting2.3.6 Hard Drive ProblemsThis section identifies some quick checks for hard drive–related problems.Table 2-6Solutions for Hard Dri

Compaq Deskpro 1000 Series of Personal Computers 2-112.3.7 Hardware Installation ProblemsThis section identifies some quick checks for hardware proble

2-12 Troubleshooting2.3.8 CD-ROM Drive ProblemsThis section identifies some quick checks for CD-ROM drive problems.Table 2-8CD-ROM Drive ProblemsProbl

Compaq Deskpro 1000 Series of Personal Computers 3-1chapter 3ILLUSTRATED PARTS CATALOGThis chapter provides an illustrated parts breakdown and a refer

Contents iii CONTENTSprefaceSymbols and Conventions ...

3-2 Illustrated Parts Catalog3.1 System UnitFigure 3-2. System UnitTable 3-1System Unit Spare PartsDescription Spare Part Number Warranty Tier1Syste

Compaq Deskpro 1000 Series of Personal Computers 3-33.2 Mass Storage DevicesFigure 3-3. Mass Storage DevicesTable 3-2Mass Storage DevicesDescription

3-4 Illustrated Parts Catalog3.3 CablesFigure 3-4. CablesTable 3-3CablesDescription Spare Part Number Warranty TierMiscellaneous cable kit includes:

Compaq Deskpro 1000 Series of Personal Computers 3-53.4 Standard and Optional BoardsFigure 3-5. Standard and Optional BoardsTable 3-4Standard and Op

3-6 Illustrated Parts Catalog3.5 KeyboardsFigure 3-6. KeyboardTable 3-5KeyboardsDescription Spare Part Number Warranty Tier1. Arabic* 333828-171 A2.

Compaq Deskpro 1000 Series of Personal Computers 3-73.6 Miscellaneous Hardware KitFigure 3-7. Miscellaneous Hardware KitTable 3-6Miscellaneous Hardwa

3-8 Illustrated Parts Catalog3.7 Miscellaneous Plastics KitFigure 3-8. Miscellaneous Plastics KitTable 3-7Miscellaneous Plastics KitDescription Spare

Compaq Deskpro 1000 Series of Personal Computers 3-93.8 Miscellaneous PartsFigure 3-9. Miscellaneous PartsTable 3-8Miscellaneous PartsDescription Spa

Compaq Deskpro 1000 Series of Personal Computers 4-1chapter 4REMOVAL AND REPLACEMENT PRELIMINARIESThis chapter provides general service information fo

4-2 Removal and Replacement Preliminaries4.1.2 Preventing Electrostatic Damage to EquipmentMany electronic components are sensitive to ESD. Circuitry

iv Contents3.8 Miscellaneous Parts ...3-93.9

Compaq Deskpro 1000 Series of Personal Computers 4-34.1.4 Grounding WorkstationsTo prevent static damage at the workstation, use the following precaut

4-4 Removal and Replacement Preliminaries4.1.6 Recommended Materials and EquipmentOther materials and equipment that are recommended for use in preven

Compaq Deskpro 1000 Series of Personal Computers 4-54.2.2 ScrewsThe screws used in the computer are not interchangeable. They may have standard or met

Compaq Deskpro 1000 Series of Personal Computers 5-1chapter 5REMOVAL AND REPLACEMENT PROCEDURESThis chapter provides subassembly/module level removal

5-2 Removal and Replacement Procedures5.2 Disassembly/Assembly Sequence5.3 Computer Feet5.4 Preparation for Disassembly5.5 System Unit Cover5.6 Expans

Compaq Deskpro 1000 Series of Personal Computers 5-35.3 FeetFour rubber feet are mounted to the underside of the base pan. No parts have to be removed

5-4 Removal and Replacement Procedures5.5 System Unit Cover 1. Perform preparation procedures (Section 5.4). 2. Remove the three screws on the rea

Compaq Deskpro 1000 Series of Personal Computers 5-5 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit cover (Section 5.5

5-6 Removal and Replacement Procedures5.7 Expansion Board Guide 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit cover (

Compaq Deskpro 1000 Series of Personal Computers 5-75.8 System Board 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit co

Contents vchapter 6Jumper Information6.1 System Board Jumpers ...

5-8 Removal and Replacement Procedures5.9 Graphics Memory 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit cover (Sectio

Compaq Deskpro 1000 Series of Personal Computers 5-95.10 Memory ModulesYou can expand computer memory by installing industry-standard single inline me

5-10 Removal and Replacement ProceduresTable 5-1Memory Configuration OptionsTotal SystemMemory, MBSIMM 3 & 4(Bank 1)SIMM 1 & 2(Bank 0)DIMM 1(B

Compaq Deskpro 1000 Series of Personal Computers 5-115.10.1 Installing a SIMM ModuleCAUTION: Static electricity can damage the electronic components

5-12 Removal and Replacement Procedures5.10.2 Installing a DIMM ModuleCAUTION: Static electricity can damage the electronic components or optional eq

Compaq Deskpro 1000 Series of Personal Computers 5-135.11 Power Supply 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit

5-14 Removal and Replacement Procedures5.12 Microprocessor5.12.1 Passive Heat Sink (P55C/166) 1. Perform preparation procedures (Section 5.4). 2.

Compaq Deskpro 1000 Series of Personal Computers 5-15To install a processor, complete the following steps: 1. Lower the processor into the ZIF socke

5-16 Removal and Replacement Procedures5.12.2 Active Heat Sink (P55C/200) 1. Perform preparation procedures (Section 5.4). 2. Remove the system un

Compaq Deskpro 1000 Series of Personal Computers 5-17To install a processor, complete the following steps: 1. Lower the processor into the ZIF socke

vi Contentsappendix BPower Cord Set RequirementsGeneral Requirements ...

5-18 Removal and Replacement Procedures5.13 Front Bezel AssemblyTo remove the bezel: 1. Perform preparation procedures (Section 5.4). 2. Remove th

Compaq Deskpro 1000 Series of Personal Computers 5-195.14 LED Retainer Assembly 1. Perform preparation procedures (Section 5.4). 2. Remove the sys

5-20 Removal and Replacement Procedures5.15 LED Cables 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit cover (Section 5

Compaq Deskpro 1000 Series of Personal Computers 5-215.16 Power Button 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit

5-22 Removal and Replacement Procedures5.17 Bezel Blank 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit cover (Section

Compaq Deskpro 1000 Series of Personal Computers 5-235.18 Replacement BatteryThe real-time clock battery that came with the computer can be replaced w

5-24 Removal and Replacement Procedures5.19 Mass Storage DevicesThis section discusses the removal and replacement procedures on the Compaq Deskpro 10

Compaq Deskpro 1000 Series of Personal Computers 5-255.19.2 Drive Cage 1. Perform preparation procedures (Section 5.4). 2. Remove the system unit

5-26 Removal and Replacement Procedures5.19.3 3.5-Inch DriveBefore beginning the removal procedure, ensure that all removal media have been removed fr

Compaq Deskpro 1000 Series of Personal Computers 5-275.19.4 5.25-Inch DriveBefore installing a 5.25-inch drive into a bay that has never been used, re

Compaq 1000 Series of Personal Computers viiprefaceThis Maintenance & Service Guide is a troubleshooting guide that can be used for reference when

Compaq Deskpro 1000 Series of Personal Computers 6-1chapter 6JUMPER INFORMATIONThis chapter provides information for system board jumpers and hard dri

6-2 Jumper InformationFigure 6-1. Locating the JumpersTable 6-1System Board JumpersSystemBoard IDFunction Description1CPW Clear Password Allows you t

Compaq Deskpro 1000 Series of Personal Computers 6-36.1.1 Power-On Password Jumpers (CPW)If you forget your password, you cannot access the computer.

6-4 Jumper Information6.1.2 Flash EPROM Type Selection (EP)The EP1 and EP2 jumpers allow you to configure the Flash EPROM chip:Table 6-2EPROM Type Sel

Compaq Deskpro 1000 Series of Personal Computers 6-56.1.4 CPU to SRAM Data Transacting Mode Selection (SRAM)The SRAM jumper allows you to select the

6-6 Jumper Information6.2 Hard DrivesFor more information about Compaq hard drives, refer to Appendix C in this guide.6.2.1 1.6-GB IDE Hard Drive Jump

Compaq Deskpro 1000 Series of Personal Computers 7-1chapter 7UTILITIES7.1 CMOS Setup Utility7.1.1 Using the CMOS Setup UtilityExecute the CMOS Setup U

7-2 UtilitiesFloppy mode supportBootup video display modePOST error handling selectionsHard disk configurations✎You can set Hard Disk Type to

Compaq Deskpro 1000 Series of Personal Computers 7-37.1.3.4 Changing a PasswordTo change a password, complete the following steps: 1. Disable the e

7-4 Utilities 1. Press Esc to return to the main menu. 2. Press “Save and Exit Setup” The message “SAVE to CMOS and EXIT (Y/N)?” will appear atthe c

viii PrefaceTechnician Note!WARNING: Only authorized technicians trained by Compaq should attempt to repair this equipment. Alltroubleshooting and re

Compaq Deskpro 1000 Series of Personal Computers 7-5This automated setup is referred to as Plug and Play; there are no switches to set or manualproced

Compaq Deskpro 1000 Series of Personal Computers 8-1chapter 8SPECIFICATIONSThis chapter provides physical, environmental, and performance specificatio

8-2 SpecificationsTable 8-2System InterruptsHardware IRQ System FunctionIRQ 0 Timer Interrupt (Not on ISA Bus)IRQ 1 Keyboard (Not on ISA Bus)IRQ 2 Int

Compaq Deskpro 1000 Series of Personal Computers 8-3Table 8-4System I/OI/O Address (Hex) * System Function (Shipping Configuration)000 - 00F 8237 DMA

8-4 SpecificationsTable 8-5System Memory MapSize* Memory Address (Hex) System Function64 KB FFFFFFFFh to FFFF0000h System ROM1504 MB FDFFFFFFh to A000

Compaq Deskpro 1000 Series of Personal Computers 8-58.2 DrivesTable 8-6Diskette Drive1.44 MBSize and CapacitySize (cm)Size (in)High Density (MB)Low De

8-6 SpecificationsTable 8-7EIDE Hard Drive1.6-GBFormatted CapacityPhysical (MB)Logical (MB)1624.71624.7Compaq Spare Part Number 333816-001Drive Type 6

Compaq Deskpro 1000 Series of Personal Computers 8-78.3 MouseTable 8-82-Button MouseMetric U.S.DimensionsHeightLengthWidth3.4 cm11.3 cm6.0 cm1.34 in4.

8-8 Specifications8.5 Supported Graphics ResolutionsTable 8-10Supported Graphics ResolutionsS3 Trio64V2/DX Graphics CardResolution 1-MB DRAM 2-MB DRAM

Compaq Deskpro 1000 Series of Personal Computers A-1appendix ACONNECTOR PIN ASSIGNMENTSThis appendix contains the pin assignments for all external con

Compaq Deskpro 1000 Series of Personal Computers 1-1chapter 1PRODUCT DESCRIPTIONThis chapter describes the model offerings and features of the Comp

A-2 Connector Pin AssignmentsTable A-3Parallel InterfaceConnector Pin Signal7242513 1223 22 21 2011 10 891819 1617564315 1412 1 2 3 4 5 6 7 8

Compaq Deskpro 1000 Series of Personal Computers A-3Table A-5VGA MonitorConnector Pin Signal9104515 14 117812313 126 1 2 3 4 5 6 7 8 91011121

A-4 Connector Pin AssignmentsTable A-7IDE Drive Cable491250Pin Signal Pin Signal1 RESDRV 26 GND2 GND 27 IOCHRDY3 D07 28 CABLE SELECT4 D08 29 DAK5 D06

Compaq Deskpro 1000 Series of Personal Computers B-1appendix BPOWER CORD SET REQUIREMENTSThe voltage select switch feature on the computer permits it

B-2 Power Cord Set RequirementsCountry-Specific RequirementsPower Cord Set Requirements—By CountryCountry Accredited Agency Applicable Note NumbersAus

Compaq Deskpro 1000 Series of Personal Computers C-1appendix CHARD DRIVESCompaq Computer Corporation uses IDE hard disk drives that conform to two dif

C-2 Hard DrivesAutomatic Soft-Drive TypesAn automatic soft-drive type is a mechanism where the system ROM and Computer Setup providesupport for IDE ha

Index I-1IndexAAlt key, 1-8architecture, 1-3Bbatteryinternal, 1-4bezelillustrated, 3-2spare part number, 3-2BIOSfeatures setup, 7-2upgrading, 7-4boxes

I-2 Indextroubleshooting, 2-11hardware installationtroubleshooting, 2-11II/O ports, 1-3Illustrated Parts Map, viiiinformation, locatingadditional, vi

Index I-3serial interfacepin assignments, A-2serial number, 5-1service considerations, 4-4setup password, 7-2changing, 7-3clearing, 7-3disabling, 7-2e