IBM 2158240 - Aptiva E - 2158 Maintenance And Service Manual page 64

beeps, use "Table 2-2 BIOS Error Beeps List" on page 36 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 39.
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 Codes,
Messages, And Beeps List" table and "Error Symptoms List" table, go to
"Undetermined Problems" On page 63.
Table 2-1 POST Error Codes and Messages List
NOTE:
To diagnose a problem, first find the BIOS error messages or codes 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 Codes, Messages
0111
I/O Parity Error
0127
CPU Clock Mismatch
0151
Real Time Clock Error
0161
CMOS Battery Bad
0162
CMOS Checksum Error
0162
Equipment Configuration Error
32
Action/FRU
ISA adapter card
System board
Check CPU speed and system board DIP
switches.
See "Machine Type 2158 System Board
Jumpers and Connectors" on page 107
and "Machine Type 2163 System Board
Jumpers and Connectors" on page 111.
System board
Enter BIOS Setup and load the default
settings.
CMOS battery.
System board.
Ensure the system configuration set in
BIOS Setup is correct. See "BIOS Setup
Utility" on page 11.
Enter BIOS Setup and load the default
settings.
CMOS battery.
System board.