HP Book 900 manual OmniBook Diagnostic Error Codes, Code Suggestions System Tests

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Note that the serial and parallel port tests are more thorough if you connect a loop-back connector to the port before running the test for that port. See the wiring diagrams below.

5 9

1 6

13

25

These connections are not used.

Diodes are 1N4004 or equivalent (IF=1A, VF=1V@1A, VR=30-400V)

1 14

Figure 3-3. Serial and Parallel Loopback Connectors

Interpreting the Results

The following table lists test groups, error codes, and suggestions for follow-up actions. Consider these suggestions in combination with other troubleshooting information.

Table 3-3. OmniBook Diagnostic Error Codes

Code

Suggestions

System Tests

0001h - Reseat or replace the CPU module.

0008h

 

0009h

Replace the motherboard.

0010h -

Reseat or replace the CPU module.

002Fh

 

0030h -

Replace the motherboard.

0040h

 

0041h

Unrecognized interrupts. Run BIOS Setup and

 

check IRQ assignments for all devices.

0050h -

Replace the motherboard.

0070h

 

0071h

Bad CMOS checksum. Reset the system, then

 

run BIOS Setup and check settings. Replace

 

the motherboard.

0072h

Configuration mismatch in CMOS. Reset the

 

system, then run BIOS Setup and check

 

settings. Replace the motherboard.

0073h

Bad CMOS RAM size. Reset the system, then

 

run BIOS Setup and check settings. Replace

 

the motherboard.

0074h

Bad CMOS time. Reset the system, then run

 

BIOS Setup and check settings. Replace the

 

motherboard.

0075h -

Reset the system. Replace the motherboard.

0076h

 

0077h

Replace the motherboard.

0078h

Bad CMOS checksum. Reset the system, then

 

run BIOS Setup and check settings. Replace

 

the motherboard.

0079h

Replace the motherboard.

0083h -

Replace the BIOS IC. Replace the

0086h

motherboard.

0087h

Replace the motherboard.

0088h

Replace the BIOS IC.

Code

Suggestions

008Ah

Replace the motherboard..

0090h -

Replace the BIOS IC. Replace the

009Eh

motherboard.

009Fh

Insufficient DOS memory. Load fewer device

 

drivers.

00A0h

No repair. (ESCD not supported.)

00A1h

Replace the BIOS IC. Replace the

 

motherboard.

00A2h -

No repair. (ESCD not supported.)

00A3h

 

00A4h

Replace the BIOS IC.

00A5h -

No repair. (ESCD not supported.)

00A6h

 

00A7h

Replace the BIOS IC. Replace the

 

motherboard.

00C0h -

Replace the CPU module.

00CCh

 

00FFh

Rerun the test. (Possible diagnostic

 

programming error.)

Memory Tests

The addresses below are absolute (32-bit) addresses. These addresses are not in the segment:offset format.

0100h -

Replace the motherboard.

0101h

 

0102h

Replace the BIOS IC. Replace the

 

motherboard.

0120h -

For 01FFFFFFh (OB900†) or 03FFFFFFh

0150h

(OB900B) and below, replace the motherboard.

 

Above that, replace the RAM board (each

 

01000000h represents 16MB).

0160h

Address bus short. Remove any RAM board

 

and rerun the test. Check the CPU module for

 

shorts. Replace the motherboard.

0170h -

Replace the motherboard.

0172h

 

3-14 Troubleshooting and Diagnostics

HP OmniBook 900

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Contents HP OmniBook Edition History Contents Figures TablesHP OmniBook Introduction Sources of OmniBook InformationSource Address or NumberOmniBook 900 Models Processor OmniBook Product ComparisonsMemory Display Features and Operation OmniBook Front ViewActivating Power Modes Turning the OmniBook On and OffMain Status Lights Motherboard Checking the Status of the OmniBookKeyboard Status Lights Motherboard Using Fn Hot Keys Resetting the OmniBookFn Hot Keys Hot KeySystem Interrupts System ResourcesSystem Memory System Input/Output Addresses 100-3FF 10. DMA ChannelsSpecifications 11. OmniBook 900 SpecificationsOnline Reference Guide 12. OmniBook 900 Accessories Docks Accessory Description OmniBook Compatibility900B 900† 4150 2100/7100 Replaceable Module Diagram Internal Design13. Functional Structure Docking portRemoval and Replacement Removal Cross-ReferenceRequired Equipment Recommended Screw TorquesScrew Thread Size M1.4 Torque kgfcm Torque lbfinRemoving the Battery Removal ProcedureReassembly Notes Installing a Battery PanelRAM Board Replacement Part Numbers Removing a RAM BoardPart Number Exchange Part NumberRemoving the Hard Disk Drive Hard Disk Drive Replacement Part NumbersExchange Information Removing the Hard Disk Drive Creating a Hibernate Partition Replacement Procedure Replacing Small PartsReplacing Small Parts User-Replaceable Cover, keyboard screw Door, hard disk FootRemoving the LCD Module Display Component CompatibilityRemoving the LCD Module Removing the Keyboard Removing the Keyboard Reassembly Notes Removing the CPU Module Removing the CPU Module Reassembly Notes Removing the Display Assembly Removing the Display Assembly Reassembly Notes Removing the Top Case 10. Removing the Top Case Reassembly Notes Removing the Motherboard or Bottom Case 11. Removing the Motherboard Reassembly Notes Installing a New Serial Number Label Removing the Bios IC 13. Example of Serial Number Label14. Removing the Bios IC Reassembly Notes Removing Other Components Cable, display power Case, display Hinge Latch, display LCD module Removal ProceduresRemoving Display Components Component Bezel, display Cable, display flexRemoving Top Case Components 10. Removing Bottom Case ComponentsSupport, hinge left Removal Procedures Component HeatsinkComponent Support, hinge right Removal Procedures Troubleshooting and Diagnostics Troubleshooting Troubleshooting the ProblemVerifying the Repair Suggestions for Troubleshooting Scope of Diagnostic ToolsSymptom Troubleshooting SuggestionsStartup Power/Battery Call Center SuggestionsRepair Center Likely Causes Repair Center CommentsWhite display Erratic display Symptom Keyboard Pointing stick Call Center SuggestionsSerial/Parallel AC adapter MiscellaneousAccessories OmniBook Diagnostic Program Diagnostic ToolsCreating a Diagnostic Floppy Disk Running the Diagnostic Test Serial number Audio deviceOmniBook Diagnostic Error Codes Code Suggestions System TestsHard Disk Tests Video Tests Acpi Tests Post Terminal-Error Beep Codes Power-On Self-TestPost Messages System battery is dead Replace and run Setup Message DescriptionEntering Setup Sycard PCCtest 450 CardBus Card Optional Lower slot PCT450 -b69 -0Installing the DMI Package Uninstalling the DMI PackageUsing the DMI Interface Desktop Management Interface DMIContents of the DMI Package Bios Setup Utility Running the Bios Setup UtilityBios Setup Menus and Parameters Main Menu DefaultSystem Devices Menu Default Security Menu DefaultPower Menu Boot Menu DefaultOB 900B On OB 900† Off Exit MenuReplaceable Parts Exploded View OmniBook Replaceable Parts IC, Bios Exchange User Part Number ReplExchange Part Number User Repl OmniBook 900B 900† Display Components Assembly-Component Breakdown Accessory Replaceable PartsReplaceable Parts HP OmniBook Part Number Exchange Part Number ReferenceDescription User OmniBook Repl 900B 900† Yes HP OmniBook Replaceable Parts Replaceable Parts HP OmniBook Part Number Exchange Description User OmniBook Repl B 900†Page Password Removal Policy Reference InformationHewlett-Packard Display Quality Statement Reference Information HP OmniBookOmniBook 900 LCD Guidelines TFT Type of ImperfectionElectrical Imperfections Mechanical ImperfectionsReference Information HP OmniBook Obsolete Parts Obsolete Repair PartsObsolete New Description Part Number Page Page Part Number F1770-90001