IBM 8872 - eServer xSeries 460, Service Manual

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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 8872 and Type 8874,” on page 93 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.
System-error log message Action
1.5V Power Good Fault
1. Reseat the I/O board
2. Reseat the microprocessor tray.
3. (Trained service technician only) Replace the PCI-X board.
1.8V Calgary 1 HSSIB Power Good Fault
1. Reseat the I/O board.
2. Reseat the microprocessor tray.
3. (Trained service technician only) Replace the PCI-X board.
1.8V Calgary 2 HSSIB Power Good Fault
1. Reseat the I/O board.
2. Reseat the microprocessor tray.
3. (Trained service technician only) Replace the PCI-X board.
1.8V Fault
1. If the light path diagnostics VRM LED is lit, replace the failing
VRM 3 or 4.
2. Reseat the following components:
a. Microprocessor tray
b. Power supply
c. Power backplane
3. Replace the components listed in step 2 one at a time, in the
order shown, restarting the server each time.
2.5V Calgary HSSIB Power Good Fault
1. Reseat the I/O board.
2. Reseat the microprocessor tray.
3. (Trained service technician only) Replace the PCI-X board.
2.5V Calgary PLL Power Good Fault
1. Reseat the I/O board.
2. Reseat the microprocessor tray.
3. (Trained service technician only) Replace the PCI-X board.
3.3V Power Good Fault
1. Reseat the Remote Supervisor Adapter II SlimLine, if present.
2. Reseat the I/O board.
3. (Trained service technician only) Replace the PCI-X board.
5V Aux Power Good Fault
1. Reseat the I/O board.
2. (Trained service technician only) Disconnect the cable that
connects the operator information panel to the I/O board.
3. Replace the I/O board.
4. (Trained service technician only) Replace the PCI-X board.
5V Power Good Fault Disconnect the monitor and all USB devices from the server; then:
1. Reseat the I/O board.
2. Reseat the microprocessor tray.
3. (Trained service technician only) Replace the PCI-X board.
12V A Bus Fault
1. Reseat the microprocessor tray.
2. Replace the PCI-X board.
3. Replace the power backplane
Chapter 2. Diagnostics
79