IBM System x3500 Service Guide

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, System x3500 Type 7977,” on page 41 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 Calgary PLL Power Good Fault (Trained service technician only) Replace the PCI-X board.
1.5V Power Good Fault (Trained service technician only) Replace the PCI-X board.
1.8V Calgary 1 HSSIB Power Good Fault (Trained service technician only) Replace the PCI-X board.
1.8V Calgary 2 HSSIB Power Good Fault (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.
2. Reseat the following components:
a. Power supply
b. 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 (Trained service technician only) Replace the PCI-X board.
2.5V Calgary PLL Power Good Fault (Trained service technician only) Replace the PCI-X board.
3.3V Power Good Fault
1. Reseat the Remote Supervisor Adapter II SlimLine, if one is
present.
2. (Trained service technician only) Replace the PCI-X board.
5V Aux Power Good Fault
1. (Trained service technician only) Disconnect the cable that
connects the operator information LED assembly to the system
board.
2. Replace the system board.
3. (Trained service technician only) Replace the PCI-X board.
5V Power Good Fault (Trained service technician only) Disconnect the monitor and all
USB devices from the server; then, replace the PCI-X board.
12V A Bus Fault
1. Replace the PCI-X board.
2. (Trained service technician only) Replace the power backplane.
12V B Bus Fault
1. Reseat the following components:
a. Disk drives
b. SAS hard disk drive backplane cables
2. Replace the following components one at a time, in the order
shown, restarting the server each time:
a. Disk drives
b. SAS hard disk drive backplane
c. (Trained service technician only) Power backplane
d. (Trained service technician only) PCI-X board
152 IBM System x3500 Type 7977: Problem Determination and Service Guide

IBM System x3500 Specifications

General

Brand	IBM
Model	System x3500
Category	Server
Language	English