Lenovo HX3510-G Installation And Service Manual page 87

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
• Go to the support website at http://www.lenovo.com/support to check for technical information, hints, tips,
and new device drivers or to submit a request for information.
Symptom
The Pwr rail G error has been
recorded in the system event
log.
Action
3. Restart the server. If the Pwr rail F error has been recorded in the system event
log again, (trained technician only) replace the system board (see "Removing the
system board" on page 223 and "Replacing the system board" on page 226).
4. Reinstall the components one at a time, in the order shown, restarting the
server each time. If the Pwr rail F error has been recorded in the system event
log again, the component that you just reinstalled is defective. Replace the
defective component.
• LCD monitor connected to rear VGA port (if one is present)
• USB devices
• PCIe Solid state drive backplane assembly
• PCIe Solid state drives
• Riser-card assembly 1 (See "Removing a riser-card assembly" on page 143
and "Replacing a riser-card assembly" on page 145.
• Hard disk drive backplane assembly 3
• Hard disk drives at backplane assembly 3
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:
• Raid Card in Raid slot
• Optional adapter (if one is present) in PCIe slot 4
• Optional adapter (if one is present) in PCIe slot 5
• Optional adapter (if one is present) installed in riser-card assembly 1
• Riser-card assembly 1
• Optional adapter (if one is present) installed in riser-card assembly 2
• Riser-card assembly 2
• Microprocessor 2
– (Trained technician only) Microprocessor 2 (See "Removing a
microprocessor and heat sink" on page 207 and "Replacing a
microprocessor and heat sink" on page 213).
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 223 and "Replacing the system board" on page 226).
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.
• Microprocessor 2
– (Trained technician only) Microprocessor 2 (See "Removing a
microprocessor and heat sink" on page 207 and "Replacing a
microprocessor and heat sink" on page 213).
• Riser-card assembly 2 (See "Removing a riser-card assembly" on page 143.
.
Chapter 3 Troubleshooting
75