Compaq 1800T, 1825 specifications Power-On Self Test Post, Running Post

Page 25

Maintenance & Service Guide

Presario 1800 Series

Models: 1825 and 1800T

Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations

Power-On Self Test (POST)

Running POST

To run POST, complete these directions:

Turn off the computer, then turn on the computer. As soon as the Compaq logo appears press the ESC key to clear the logo and display the POST messages as they occur.

If POST does not detect any errors, the computer will not beep. This indicates successful completion of the POST test. POST has run successfully and boots from the hard drive (or from a bootable diskette if one is installed in the diskette drive).

If POST detects errors, the errors are indicated by screen and/or audible messages. Refer to "Power-On Self-Test (POST) Codes" in the tables for a list of POST codes and their relevant descriptions.

NOTE: If the system is not functioning well enough to run POST, or if the display is not functioning well enough to show POST error messages, refer to the Troubleshooting tables.

 

Power-On Self-Test Messages

 

 

102-System Board Failure

 

Probable Cause

Recommended Action

DMA, timers, etc.

Replace the system board.

 

162-System Options Not Set

 

Probable Cause

Recommended Action

Configuration incorrect

Run Computer Setup.

CMOS reflects that an invalid

Run Computer Setup.

configuration has been set.

 

 

RAM failure

1.

Replace the memory modules.

 

2.

Replace the system board.

Memory test data error

1.

Replace the memory modules.

 

2.

Replace the system board.

XX000YZZ RAM failure

Replace the system board.

XX000YZZ 201-Memory Error

Probable Cause

Recommended Action

 

1.

Replace the memory modules.

 

2

Replace the system board.

 

 

 

301-Keyboard Error

Probable Cause

Recommended Action

Keyboard failure

1.

Ensure the keys are not depressed during POST.

2.Reconnect the keyboard with the computer off.

3.Replace the keyboard.

 

304-Keyboard or System Unit Error

Probable Cause

Recommended Action

Keyboard or system board error

1. Replace the keyboard.

2.Replace the TouchPad or mouse.

3.Replace the system board.

601-Diskette Controller Error

Probable Cause

Recommended Action

Mismatch in drive type or failure in the diskette

1. Run Computer Checkup (TEST).

controller

 

 

2.

Check and/or replace cables.

 

3.

Replace the system board.

 

 

 

605-Diskette Drive Error

Probable Cause

Recommended Action

Mismatch in drive type

Run Computer Setup.

 

 

 

1780-Primary Hard Drive 0 Failure

Probable Cause

Recommended Action

Disk 0 failed to respond

1.

Run Computer Checkup (TEST).

 

2.

Replace the hard drive.

Hard drive format error

1.

Run Computer Checkup (TEST).

 

2.

Replace the hard drive.

 

 

 

1782-Hard Drive Controller

Probable Cause

Recommended Action

Hard drive controller failure

1.

Run Computer Setup.

 

2.

Replace the hard drive.

Top of Page

Return to Troubleshooting

Page 24 Page 26
Image 25
Page 24 Page 26
Contents
Page Page Preface SymbolsProduct Description Follow the Preliminary Steps TroubleshootingIllustrated Parts Catalog Serial Number Location Removal and Replacement ProceduresRemoval Sequence Specifications Connector Pin Assignments Increasing Battery Pack Operating Time Battery Pack OperationsConditioning a Battery Pack Disposing of a Used Battery PackModels and Features Models and FeaturesHard Drive CD or DVD Drive Modem Kbps Data/Fax with PCI NetworkingControls Lights Controls and LightsIntegrated Speakers Internet Zone Buttons Lights Internet Zone Buttons LightsFront Bezel Components Front Bezel ComponentsLeft Side Components Left Side Components with Diskette DriveLeft Side Components with LS120 Drive Right Side Components Right Side ComponentsBottom Unit Bottom of UnitBack Connectors Back ConnectorsPort Replicator Components Port Replicator ComponentsPort Replicator Connectors Port Replicator Back ConnectorsPower Management for Windows Run Computer Checkup Preliminary StepsClearing the Power-on Password Running Post Power-On Self Test PostComputer Checkup Test Compaq DiagnosticsShipping Preparation Contacting Compaq SupportDiagnostic Error Codes Before Replacing Parts Troubleshooting Without DiagnosticsSolving Minor Problems Solving Power Problems Solving PC Card ProblemsSolving Printer Problems Solving TouchPad/Pointing Device ProblemsSystem Unit System UnitBoards BoardsDescription Part Number Boards Display Assembly Display AssemblyMass Storage Devices Mass Storage DevicesDescription Spare Part Number Miscellaneous Cables Kit Miscellaneous Cables KitDescription Quantity Miscellaneous Hardware Kit Miscellaneous Hardware KitMiscellaneous Plastics Kit Miscellaneous Plastics KitMiscellaneous Parts Miscellaneous PartsDocumentation and Software Documentation and SoftwareGenerating Static Electrostatic DischargeReturn to Removal & Replacement Procedures Service ConsiderationsCables Cables and ConnectorsSelect the desired illustration Plastic PartsBack to Cables and Connectors Ribbon cable position for the hard drive Ribbon cable position for the DVD or CD drive Ribbon cable position for the diskette drive Ribbon cable position for the LS120 drive Back to Cables and Connectors Cable position for the modem Cable position for the Network Interface Card Ribbon cable position for the keyboard Preparing the Computer for Disassembly Removing the Battery Pack Removal & Replacement ProceduresPalmrest Cover with TouchPad Removing the Palmrest Cover with TouchPadRemoving Palmrest Cover with TouchPad Removal & Replacement Procedures Keyboard Removing the KeyboardStatus Panel Removing Status Panel AssemblyRemoving the Status Panel Assembly Removal & Replacement Procedures Return to Removal Replacement Procedures Removing Internet Button Board Removal & Replacement Procedures Removing the Heatspreader Removing the Network Interface Card Removing the Modem Removing Hard Drive Removing the Hard Drive Mounting Brackets DisqPlay Module Removing the DisqPlay ModuleRemoving the Processor Replacing the Processor DVD or CD Drive Removing the DVD or CD DriveRemoval & Replacement Procedures Return to Removal Replacement Procedures Remove the status panel assembly Removing Display Panel AssemblyRemoving the Display Panel Assembly Return to Removal & Replacement Procedures Upper CPU Cover Removing Upper CPU CoverFan Assembly Removing Fan AssemblyRemoving the Fan Assembly Removing the Diskette or LS120 Drive Return to Removal & Replacement Procedures Removing Battery Charger Board Remove the Upper CPU cover Removing the Speaker AssemblyRemoval Removing the System BoardRemove ten standoffs from the system board Removal & Replacement Procedures Remove four screws from the system board Before replacing Removing Memory Module Memory ModuleRemoving the Memory Module
Related manuals
Manual 92 pages 27.15 Kb Manual 31 pages 1.09 Kb