Troubleshooting
2-2
Problem
Possible Cause
Action
Power is on, but there is
no screen display.
Monitor brightness and
contrast controls are
not correctly set.
Monitor is off.
Monitor cable is
incorrectly installed.
Incorrect video drivers
installed.
Video controller has
failed.
Monitor has failed.
Adjust the brightness and
contrast controls.
Turn on the monitor.
Check all monitor connections.
Install the correct video
drivers.
Replace main logic board.
Replace monitor.
Power is on but no
OCP display.
OCP button not turned
on or OCP backlight is
disabled in SCU.
OCP has failed.
Press any keyboard key or
OCP button at the front of the
server.
Make sure OCP backlight is
set to ON in the SCU.
Replace OCP display.
Power is on but cooling
fans do not work.
Fans disconnected
from main logic board.
One or more fans
failed.
Connect the fans.
Replace fan(s).
Server operates
incorrectly after
installing a CPU
module.
CPU module installed
incorrectly.
Primary CPU module
has failed.
Secondary CPU
module has failed.
Reinstall CPU module.
Replace CPU module.
Remove CPU module and
reboot. If server boots without
errors, replace CPU module.
continued
