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Symptom-to-FRU index
This index supports xSeries 250 servers.
Notes:
1. Check the configuration before you replace a FRU. Configuration problems can
cause false errors and symptoms.
2. The default configuration can be loaded by starting the system and then pressing
the reset button four times, waiting 15 seconds between each press. Once the
configuration has reset to the default, it must be saved in Setup to be stored in
CMOS.
3. For IBM devices not supported by index, refer to the manual for that device.
4. Always start with “General checkout” on page 1.
The Symptom-to-FRU 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 POST BIOS 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
functioning properly.
Beeps Description
1-2-3 • One beep
• A pause (or break)
• Two beeps
• A pause (or break)
• Three Beeps
4 Four continuous beeps
Beep/Symptom FRU/Action
1-1-3 (CMOS write/read
test failed)
1. Battery
2. I/O Legacy Board
1-1-4 (BIOS EEPROM
checksum failed)
1. I/O Legacy Board
1-2-1 (Programmable
Interval Timer failed)
1. I/O Legacy Board
1-2-2 (DMA initialization
failed)
1. I/O Legacy Board
1-2-3 (DMA page register
write/read failed)
1. I/O Legacy Board