IBM Aptiva Series Hardware Maintenance page 69

Table 2- 2 Error Symptoms List
Error Symptoms
Note: To diagnose a problem, first find the symptom, message,
error code, or beeps 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.
Note: CPU fan should be operative normally and CPU clock
setting should be exactly set to matched its speed requirement
before the any diagnose of CPU problems.
Processor fan does not run
when the power supply
fan runs.
An error was detected
during the CPU Test.
Note: Ensure memory modules are installed in pair before the any
diagnose of system problems.
Memory test failed.
Incorrect memory size
shown or repeated
during POST.
Machine works but fails to
enter power saving
mode when the Standby
Mode or Suspend Mode
is set to [Enabled] in
BIOS Setup.
System hangs before
system boot.
2-16
Action/FRU
CPU
With power-on, check the processor
fan connector FN1. See "System
Board Layout" on page 5-2.
Processor fan
System board
Processor
System board
System
"Memory" on page 2-28.
System board
"SIMM Configuration " on page 5-16.
"Memory" on page 2-28.
System board.
"Index of Symptoms, Messages, Error
Codes, or Beeps" on page 2-7.
"Undetermined Problem" on page 2-45.