IBM Aptiva 2174, Hardware Maintenance Service

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beeps, use See “Table 2-2 BIOS Error Beeps List” on page 39 to diagnose
system problems.
4. If you did not receive any error message, look for a description of your error
symptoms in “Table 2-3 Error Symptoms List” on page 40.
IMPORTANT: Check all power supply voltages, switch, and jumper settings
before you replace the system board. Also check the power supply
voltages if you have a “system no-power” condition.
5. If you are unable to correct the problem by using the “BIOS Error Messages
and Beeps List” table and “Error Symptoms List” table, go to “Undetermined
Problems” on page 66.
Table 2-1 POST Error Messages List
NOTE:
To diagnose a problem, first find the BIOS error messages in left column. If
directed to a check procedure, replace the FRU indicated in the check
procedure. If no check procedure is indicated, the first Action/FRU listed in right
column is the most likely cause.
BIOS Error Messages Action/FRU
GA20 Error System board
On Board Parity Error
Parity Error
System board
Off Board Parity Error Remove all adapter cards that are NOT
factory-installed, then reboot the system.
Cache Memory Bad Check CPU speed and system board DIP
switches.
System board
CMOS Battery Bad
CMOS Battery Low
CMOS Checksum Error
CMOS Setting Wrong
Enter BIOS Setup and load the default
settings.
CMOS battery.
System board.
CMOS display type wrong Ensure the system configuration set in
BIOS Setup is correct. “BIOS Setup Utility”
on page 12.
Enter BIOS Setup and load the default
settings.
CMOS battery.
System board.
CMOS Date/Time Not Set Ensure the time set in BIOS Setup is
correct. “Date and Time” on page 19.
CMOS battery.