Symptom-To-Fru Index; Beep Symptoms; Scsi Tape Drive Symptoms; Miscellaneous Symptoms - IBM PS/2 95 XP 486 Hardware Maintenance Service

14.0 Symptom-to-FRU Index

Error symptoms and the FRUs that might be responsible for the failure are
listed in the "Symptom-To-FRU index."
listed first. If you are unable to correct the problem using this index,
go to "Undetermined Problem" in topic 4.0.
If the system displays an error message and gives an incorrect audio
response, start with the FRUs listed for that error message.
error message can be any number.
Note: If an error message is not listed, there is a device installed that
requires an additional diskette or service manual.
diskette or service manual for that device.
How to Read POST Error Messages
POST error messages are displayed on the screen as three, four, five, or
eight digits. The error messages that can be displayed as shorter POST
messages are highlighted in this index.
different information for SCSI errors versus non-SCSI errors.
The following figure shows which digits display the shorter POST error
messages. The figure also defines the SCSI information in an eight-digit
error message.
Shorter POST Messages
+--------------------+
¦ ¦ ¦
+-------------------++-------------------+
¦ 0 ¦ 0 ¦ 0 ¦ 0 ¦¦
+-------------------++-------------------+
¦ ¦ ¦ ¦
Reserved ¦ ¦ ¦
+---------+
Device Code
All SCSI devices must be set to a different SCSI ID.
settings can generate a false error message.
whether the error message is coming from an internal or an external
device.
Note: If you are instructed to replace either the processor board or the
system board, and the first board that you replaced does not
correct the problem, then replace the other board (processor or
system) and reinstall the original board.
Subtopics
14.1 No-Beep Symptoms

14.2 Beep Symptoms

14.3 SCSI Tape Drive Symptoms

14.4 Miscellaneous Symptoms

14.5 Numeric Error Codes

IBM PS/2 Model 95 XP 486 HMS
Symptom-to-FRU Index
The most-likely failing FRU is
Some digits will represent
¦ ¦
0 ¦ 0 ¦ 0 ¦ 0 ¦
¦ ¦ ¦ ¦
¦ ¦ ¦ Size (SCSI)
¦ ¦ Slot Number (SCSI)
¦ Logical Unit Number (SCSI)
ID (SCSI)
Use the SCSI ID to determine
¦ Copyright IBM Corp. 1990, 1991
14.0 - 1
An "X" in an
Refer to the
Duplicate SCSI ID