IBM System x3650 M5, Installation And Service Manual, Page: 121 / 1010

v
Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v
If an action step is preceded by “(Trained technician only),” that step must be performed only by a trained
technician.
v
Go to the IBM support website at http://www.ibm.com/supportportal/ to check for technical information, hints,
tips, and new device drivers or to submit a request for information.
Symptom Action
The Pwr rail G error has been
recorded in the system event
log.
1. Disconnect the server power cords.
2. Remove the following components if the Pwr rail G error has been recorded in
the system event log:
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Raid Card in Raid slot
v
Optional adapter (if one is present) in PCIe slot 4
v
Optional adapter (if one is present) in PCIe slot 5
v
Optional adapter (if one is present) installed in riser-card assembly 1
v
Riser-card assembly 1
v
Optional adapter (if one is present) installed in riser-card assembly 2 (or
Rear Hard disk Drives in Rear two Hard-disk-drive kit on Riser 2)
v
Riser-card assembly 2 (or Rear two Hard-disk-drive kit on Riser 2)
v
Microprocessor 2
– (Trained technician only) Microprocessor 2 (See “Removing a
microprocessor and heat sink” on page 258 and “Replacing a
microprocessor and heat sink” on page 264).
3. Restart the server. If the Pwr rail G error has been recorded in the system
event log again, (trained technician only) replace the system board (see
“Removing the system board” on page 276 and “Replacing the system board”
on page 279).
4. Reinstall the components one at a time, in the order shown, restarting the
server each time. If the Pwr rail G error has been recorded in the system event
log again, the component that you just reinstalled is defective. Replace the
defective component.
v
Microprocessor 2
– (Trained technician only) Microprocessor 2 (See “Removing a
microprocessor and heat sink” on page 258 and “Replacing a
microprocessor and heat sink” on page 264).
v
Riser-card assembly 2 (See “Removing a riser-card assembly” on page 180
and “Replacing a riser-card assembly” on page 181) or Rear two
Hard-disk-drive kit on Riser 2.
v
Optional adapter (if one is present) installed in riser-card assembly 2 (See
“Removing an adapter” on page 185 and “Replacing an adapter” on page
190) or Rear Hard disk Drives in Rear two Hard-disk-drive kit on Riser 2.
v
Riser-card assembly 1 (See “Removing a riser-card assembly” on page 180
and “Replacing a riser-card assembly” on page 181).
v
Optional adapter (if one is present) installed in riser-card assembly 1 (See
“Removing an adapter” on page 185 and “Replacing an adapter” on page
190).
v
Optional adapter (if one is present) in PCIe slot 5
v
Optional adapter (if one is present) in PCIe slot 4
v
Raid Card in Raid slot
5. (Trained technician only) remove all components
6. (Trained technician only) replace the system board (see “Removing the system
board” on page 276 and “Replacing the system board” on page 279).
7.
Reinstall the Microprocessor 1; then, restarting the server. If the Pwr rail G
error has been recorded in the system event log again, the Processor that you
just reinstalled is defective. Replace the defective Processor.
v
(Trained technician only) Microprocessor 1 (See “Removing a microprocessor
and heat sink” on page 258 and “Replacing a microprocessor and heat sink”
on page 264).
Chapter 3. Troubleshooting
105