Serial-Device Problems - Lenovo HX1310 Installation And Service Manual

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 7 error has been
recorded in the system event
log.
The server does not turn off.
The server unexpectedly shuts
down, and the LEDs on the
operator information panel are
not lit.

Serial-device problems

Use this information to solve serial-device problems.
Action
• PCI riser-card assembly (see "Removing a PCI riser-card assembly" on page
120 and "Replacing a PCI riser-card assembly" on page 121).
• Hard disk drives
1. Disconnect the server power cords.
2. Remove the following components if the Pwr rail 7 error has been recorded in
the system event log:
• Fan 1
• Fan 2
3. Restart the server. If the Pwr rail 6 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 6 error has been recorded in the system event
log again, the component that you just reinstalled is defective. Replace the
defective component.
• Fan 1 (see "Removing a thermal kit (hot-swap fan)" on page 129 and
"Replacing a thermal kit (hot-swap fan)" on page 129).
• Fan 2
1. Determine whether you are using an Advanced Configuration and Power
Interface (ACPI) or a non-ACPI operating system. If you are using a non-ACPI
operating system, complete the following steps:
a. Press Ctrl+Alt+Delete.
b. Turn off the server by pressing the power-control button and hold it down for
5 seconds.
c. Restart the server.
d. If the server fails POST and the power-control button does not work,
disconnect the power cord for 20 seconds; then, reconnect the power cord
and restart the server.
2. If the problem remains or if you are using an ACPI-aware operating system,
suspect the system board.
See "Solving undetermined problems" on page 79.
.
Chapter 3 Troubleshooting
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