Digital Equipment 3100R Series, Service Maintenance Manual

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Troubleshooting
4-17
D
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IT
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S
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310
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20
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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.
Replace the main logic board.
Replace monitor.
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.
CD-ROM drive not
configured as a bootable
device. Change the CD-ROM setting to
“bootable” using SCSISelect.
CD-ROM disc is not
bootable. Install the latest BIOS.
Server operates incorrectly
after installing a processor
module. Processor module installed
incorrectly.
SCU indicates an error
after installing a processor
module.
Reinstall processor module.
Remove processor module and
reboot. If server boots without
errors, replace processor module.
continued