User`s guide

Problem Solving and Troubleshooting
11-4
Problem Possible Cause Action
Power is on, but there is
no screen display.
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.
Contact your Digital service
representative.
Replace monitor or contact your Digital
service representative.
Power is on but no OCP
display.
OCP button not turned on
or OCP backlight is
disabled in SCU.
Press any keyboard key or OCP
button at the front of the server.
Make sure OCP backlight is set to ON
in the SCU.
Server does not boot from
CD-ROM drive.
CD-ROM drive is not
connected to the Adaptec
controller.
Connect the CD-ROM to the Adaptec
controller. Refer to Chapter 9.
CD-ROM drive not
configured as a bootable
device.
Change the CD-ROM setting to
“bootable” using SCSI
Select .
CD-ROM disk is not
bootable.
Contact your Digital representative for
the latest BIOS.
Server operates incorrectly
after installing a CPU
module.
CPU module installed
incorrectly.
SCU indicates an error
after installing a CPU
module.
Reinstall CPU module.
Remove CPU module and reboot. If
server boots without errors, replace
CPU module.
continued