IBM xSeries 236 8841, User Manual

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The first column of the two-column tables in this index lists error codes or
messages, and the last column lists one or more suggested actions or FRUs to
replace. Take the action (or replace the FRU) that is suggested first in the list, and
then try the server again to see whether the problem has been corrected.
Note: Try reseating a suspected component or reconnecting a cable before
replacing the component.
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 examples in the following table.
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
One beep after successfully completing POST indicates the system is functioning
properly.
Note: See “System replaceable units” on page 144 to determine which components should be replaced by a field
service technician.
Beep/symptom FRU/action
1-1-2
(Microprocessor register test failed)
1. Optional microprocessor (if installed)
2. Microprocessor
3. System board
1-1-3
(CMOS write/read test failed)
1. Battery
2. Clear CMOS. See “Erasing a lost or forgotten password (clearing CMOS
memory)” on page 99.
3. System board
1-1-4
(BIOS EEPROM checksum failed)
1. Recover BIOS
2. System board
1-2-1
(Programmable Interval Timer failed)
v
System board
1-2-2
(DMA initialization failed)
v System board
1-2-3
(DMA page register write/read failed)
v
System board
1-2-4
(RAM refresh verification failed)
1. DIMM
2. System board
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xSeries 236 Type 8841: Hardware Maintenance Manual and Troubleshooting Guide