v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the Hardware Maintenance Manual 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.
Symptom Action
The server resets (restarts)
occasionally.
1. If the reset occurs during POST and the POST watchdog timer is enabled (click
System Settings --> Integrated Management Module --> POST Watchdog
Timer in the UEFI Setup Utility program to see the POST watchdog setting),
make sure that sufficient time is allowed in the watchdog timeout value (POST
Watchdog Timer). If the server continues to reset during POST, see “POST”
on page 142.
2. If the reset occurs after the operating system starts, disable any automatic
server restart (ASR) utilities or ASR devices that may be installed.
Note: ASR utilities operate as operating-system utilities and are related to the
IPMI device driver. If the reset continues to occur after the operating system
starts, the operating system might have a problem; see “Software problems” on
page 156.
3. If neither condition applies, check the system-error log or IMM system event log
(see “POST” on page 142).
If
the problem remains, call for service.
Keyboard, mouse, or pointing-device problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the Hardware Maintenance Manual 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.
Symptom Action
All or some keys on the
keyboard do not work.
1. Make sure that:
v The keyboard cable is securely connected.
v If you are using a PS/2 keyboard, the keyboard and mouse cables are not
reversed.
v The server and the monitor are turned on.
2.
If you are using a USB keyboard, run the UEFI Setup Utility program and
enable keyboardless operation to prevent the 301 POST error message from
being displayed during startup.
3. If you are using a USB keyboard and it is connected to a USB hub, disconnect
the keyboard from the hub and connect it directly to the server.
4. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Keyboard
b. (Trained service technician only) System board
Chapter 7. Solving problems 147
