Lenovo HX1310 Installation And Service Manual page 87

Table 16. Power problems and actions (continued)
• 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 Web site 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
Pwr rail 2 error has been
recorded in the system event
log.
Pwr rail 3 error has been
recorded in the system event
log.
Pwr rail 4 error has been
recorded in the system event
log.
Action
1. Disconnect the server power cords.
2. (Trained technician only) remove microprocessor 2 if Pwr rail 2 error has been
recorded in the system event log.
3. Restart the server. If the Pwr rail 2 error has been recorded in the IMM event
log again, (trained technician only) replace the system board (see "For service
technician only: removing the system board" on page 169 and "For service
technician only: replacing the system board" on page 172).
4. Reinstall the component; then, restarting the server. If the Pwr Rail 2 error
has been recorded in the system event log again, the component that you just
reinstalled is defective. Replace the defective component.
• (Trained technician only) Microprocessor 2 (see "For service technician only:
removing a microprocessor and heat sink" on page 156 and "For service
technician only: replacing a microprocessor and heat sink" on page 161).
1. Disconnect the server power cords.
2. Remove the following components if Pwr rail 3 error has been recorded in the
system event log:
• DIMMs 1 through 12
• Fan 3
3. Restart the server. If the Pwr rail 3 error has been recorded in the system event
log again, (trained technician only) replace the system board (see "For service
technician only: removing the system board" on page 169 and "For service
technician only: replacing the system board" on page 172).
4. Reinstall the components one at a time, in the order shown, restarting the
server each time. If the Pwr rail 3 error has been recorded in the system event
log again, the component that you just reinstalled is defective. Replace the
defective component.
• DIMMs 1 through 12 (see "Removing a memory module" on page 112 and
"Memory module installation" on page 113).
• Fan 3 (see "Removing a thermal kit (hot-swap fan)" on page 129 and
"Replacing a thermal kit (hot-swap fan)" on page 129).
1. Disconnect the server power cords.
2. Remove the following components if the Pwr rail 4 error has been recorded in
the system event log:
• Fan 5
• Fan 6
• DIMMs 13 through 24
3. Restart the server. If the Pwr rail 4 error has been recorded in the system event
log again, (trained technician only) replace the system board (see "For service
technician only: removing the system board" on page 169 and "For service
technician only: replacing the system board" on page 172).
4. Reinstall the components one at a time, in the order shown, restarting the
server each time. If the Pwr Rail 4 error has been recorded in the system event
.
Chapter 3 Troubleshooting
73