IBM x3950 Problem Determination And Service Manual page 91

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, Type 8878 and 8879," on page 109 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Error code Description
180-xxx-005 Failed SCSI backplane LED test.
180-xxx-006 Failed memory card LED test.
180-xxx-007 Failed power supply fan LED test.
180-xxx-008 Failed I/O board LED test.
180-xxx-009 Failed Active
™
PCI LED test.
Action
1. Reseat the following components:
a. SAS hard disk drive backplane cable
b. I/O board
c. Microprocessor tray
2. Replace the following components one at a time,
in the order shown, restarting the server each
time.
a. SAS hard disk drive backplane cable
b. SAS hard disk drive backplane
c. I/O board
d. (Trained service technician only)
Microprocessor tray
1. Reseat the following components:
a. Memory card
b. Microprocessor tray
c. I/O board
2. Replace the following components one at a time,
in the order shown, restarting the server each
time.
a. Memory card
b. (Trained service technician only)
Microprocessor tray
c. I/O board
1. Reseat the following components:
a. Power supply
b. (Trained service technician only) Power
supply structure
c. I/O board
2. Replace the components listed in step 1 one at a
time, in the order shown, restarting the server
each time.
1. Reseat the I/O board.
2. Replace the I/O board.
1. Reseat the following components:
a. (Trained service technician only) PCI-X switch
card assembly
b. I/O board
2. Replace the components listed in step 1 one at a
time, in the order shown, restarting the server
each time.
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Chapter 2. Diagnostics