Index of Error Message

The symptom-to-FRU index lists the symptoms and errors and their possible causes. The most likely cause is listed first.

NOTE: Perform the FRU replacement or actions in the sequence shown in FRU/Action column, if the FRU replacement does not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU.

This index can also help you determine the next possible FRU to be replaced when servicing a computer.

If the symptom is not listed, see "Undetermined Problems" on page 69.

The following lists the error messages that the BIOS displays on the screen and the error symptoms classified by function.

NOTE: Most of the error messages occur during POST. Some of them display information about a hardware device, e.g., the amount of memory installed. Others may indicate a problem with a device, such as the way it has been configured.

NOTE: If the system fails after you make changes in the BIOS Setup Utility menus, reset the computer, enter Setup and install Setup defaults or correct the error

Error Messages List

Error Messages

Action in Sequence

Failure Fixed Disk

Reconnect hard disk drive connector. "Load Default Settings" in BIOS Setup Utility. Hard disk drive System board

Stuck Key

"Keyboard or Auxiliary Input Device Check" .

Keyboard error

"Keyboard or Auxiliary Input Device Check".

Keyboard Controller Failed

"Keyboard or Auxiliary Input Device Check".

Keyboard locked - Unlock key switch

Unlock external keyboard.

Monitor type does not match CMOS - Run Setup

Run "Load Default Settings" in BIOS Setup Utility.

Shadow RAM Failed at offset: nnnn

BIOS ROM System board

System RAM Failed at offset: nnnn

DIMM

System board

Extended RAM Failed at offset: nnnn

DIMM

System board

System battery is dead - Replace and run Setup

Replace RTC battery and Run BIOS Setup Utility to reconfigure system time, then reboot system.

System CMOS checksum bad - Default configuration used

RTC battery

Run BIOS Setup Utility to reconfigure system time, then reboot system.

Run BIOS Setup Utility to reconfigure system time, then reboot system. System board

Run BIOS Setup Utility to reconfigure system time, then reboot system. System board

Previous boot incomplete - Default configuration used

Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board

Error Messages List

Error Messages

Action in Sequence

Memory size found by POST differed from CMOS

Run "Load Default Settings" in BIOS Setup Utility. DIMM

System board

Diskette drive A error

Check that the drive is defined with the proper diskette type in BIOS Setup Utility. Diskette Drive Check.

Incorrect Drive A type - run SETUP

Check that the drive is defined with the proper diskette type in BIOS Setup Utility Diskette Drive Check.

System cache error - Cache disabled

CPU board System board

CPU ID

CPU board System board

DMA Test Failed

DIMM CPU board System board

Software NMI Failed

DIMM CPU board System board

Fail-Safe Timer NMI Failed

DIMM CPU board System board

Device Address Conflict

Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board

Allocation Error for device

Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board

Failing Bits: nnnn

DIMM BIOS ROM System board

Fixed Disk n

None

Invalid System Configuration Data

BIOS ROM System board

I/O device IRQ conflict

Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board

Operating system not found

Enter Setup and see if fixed disk and drive A are properly identified.

Diskette drive

Hard disk drive

System board

No-Beep Symptoms

Symptom / Error

Action in Sequence

No beep, power-on indicator turns off and LCD is blank.

Power source (battery pack and power adapter). Power System Check.

Ensure every connector is connected tightly and correctly.

Reconnect the DIMM. CPU board DC-DC/charger board System board.

No beep, power-on indicator turns on and LCD is blank.

Power source (battery pack and power adapter).

Power System Check.

Reconnect the LCD connectors

Hard disk drive

LCD inverter ID

LCD FPC cable

Inverter

System board

No beep, power-on indicator turns on and LCD is blank. But you can see POST on an external CRT.

Reconnect the LCD connectors.

LCD inverter ID

LCD FPC cable

LCD inverter

System board

No beep, power-on indicator turns on and a blinking cursor shown on LCD during POST.

Ensure every connector is connected tightly and correctly.

System board

No beep during POST but system runs correctly.

Speaker

Audio/Battery connection board System board

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