Chapter 6. Symptom-To-Fru Index; Beep Symptoms - IBM 867372X Maintenance And Troubleshooting Manual

Chapter 6. Symptom-to-FRU index

This index supports xSeries 305 servers.
Notes:
1. Check the configuration before you replace a FRU. Configuration problems can
2. For IBM devices not supported by this index, refer to the manual for that device.
3. Always start with "General checkout" on page 17.
The symptom-to-FRU index lists symptoms, errors, and the possible causes. The
most likely cause is listed first. Use this symptom-to-FRU index to help you decide
which FRUs to have available when servicing the computer.
The first column of the two-column tables in this index lists error codes or
messages, and the second column lists one or more suggested actions or FRUs to
replace. Take the action (or replace the FRU) suggested first in the list of the
second column, then try the server again to see if the problem has been corrected.
Note: Try reseating a suspected component or reconnecting a cable before
The POST BIOS code displays POST error codes and messages on the screen.

Beep symptoms

Beep symptoms are short tones or a series of short tones separated by pauses
(intervals without sound). See the following examples.
Note: One beep after successfully completing POST indicates the system is
Beeps Description
1-2-3
v One beep
v A pause (or break)
v Two beeps
v A pause (or break)
v Three Beeps
4 Four continuous beeps
Beep/symptom
1-1-2 (processor
register test failed)
1-1-3 (CMOS write/read
test failed)
1-1-4 (BIOS EEPREOM
checksum failed)
1-2-1 (Programmable
interval timer failed)
© Copyright IBM Corp. 2002
cause false errors and symptoms.
replacing the component.
functioning properly.
FRU/action
1. Optional microprocessor (if installed)
2. Microprocessor
1. Battery
2. System board
v System board
v System board
63