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Undetermined problems
Use the information in this section if the diagnostic tests did not identify the failure,
the devices list is incorrect, or the system is inoperative.
Notes:
1. Damaged data in CMOS can cause undetermined problems. To reset the
2. Damaged data in BIOS code can cause undetermined problems.
Check the LEDs on all the power supplies of server. If the LEDs indicate the power
supplies are working correctly, complete the following steps:
1. Check that the front panel is connected to the system board.
2. If no LEDs on the front panel are working, replace the front panel; then, try to
3. Turn off the server.
4. Remove the server cover.
5. Remove or disconnect the following devices (one at a time) until you find the
6. Turn on the server. If the problem remains, suspect the following FRUs in the
Notes:
1. If the problem goes away when you remove an I/O adapter from the system and
2. If you suspect a networking problem and all the system tests pass, suspect a
88
IBM eServer xSeries x382 Type 8834: Hardware Maintenance Manual and Troubleshooting Guide
CMOS, remove the battery for 15 minutes, and then reinstall the battery.
v Flash the system with the latest BIOS code.
v If the system appears inoperative, recover the BIOS (see "BIOS recovery
mode" on page 42).
power up the server.
failure (reinstall, turn on and reconfigure the server each time):
v I/O adapter
v Drives
v Memory modules (minimum requirement = four 256 MB DIMMs)
Note: Minimum operating requirements are:
a. System board
b. One microprocessor
c. Memory (with a minimum of four 256 MB DIMMs)
d. Two power supplies
e. PCI riser assembly
f. Front panel board
g. SCSI backplane
h. Power pod
order listed:
v DIMM
v System board
v Riser board
v SCSI backplane
v Front panel board
v Microprocessor
replacing that I/O adapter does not correct the problem, suspect the system
board.
network cabling problem external to the system.
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