Chapter 4 71
Index of Error Message
The symptom-to-FRU index lists the symptoms and errors and th eir 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, “Undetermined Problems” on page 79.
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 indicat e a proble m with a devi ce, 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 comp uter, 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 Devi ce Check” .
Keyboard error “Keyboard or Auxiliary Input Devi ce Check”.
Keyboard Controller Failed “Keyboard or Auxiliary Input Devi ce Check”.
Keyboard locked - Unlock key switch Unlock external keyboard.
Monitor type does not match CMOS - Run Setup Run “Load Default Setti ngs” in BIOS Setup Utility.
Shadow RAM Failed at offset: nnnn BIOS ROM
System board
System RAM Failed at offset: nnn n DI MM
System board
Extended RAM Failed a t offset: nnnn DIMM
System board
System battery is dead - Replace and run Setup Repla ce RTC battery and Run BIOS Setup Ut ility 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.
System timer error RTC battery
Run BIOS Setup Utility to reconfigure system time,
then reboot system.
System board
Real time clock error RTC battery
Run BIOS Setup Utility to reconfigure system time,
then reboot system.
System board
Previous boot incomplet e - Default configura tion used Run “Load Default Setti ngs” in BIOS Setup Utility.
RTC battery
System board