30
Table 4 continued
What happens
What to do
Characters do not
appear on screen
Make sure the video display is plugged in and
turned on.
Check that the brightness and contrast controls
are properly adjusted.
Check that the video signal cable is properly
installed.
Make sure a video board is installed, enabled,
and the jumpers are positioned correctly.
Reboot the system.
CMOS RAM
settings are
wrong
If system settings stored in CMOS RAM change
for no apparent reason (for example, the time of
day develops an error), the backup battery may
no longer have enough power to maintain the
settings. Replace the battery (Chapter 2).
Diskette drive
light does not go
on when drive is
in use or is tested
by POST
Make sure the power and signal cables for the
drive are properly installed.
Check that the drive is properly configured and
enabled in Setup.
Hard drive light
does not go on
when drive is in
use or is tested by
POST
Make sure the power and signal cables for the
drive are properly installed.
Make sure the front panel connector is securely
attached to the system board headers.
Check that the drive is properly configured and
enabled in Setup.
Check the drive manufacturer's manual for proper
configuration for remote hard disk drive activity.
Power-on light
does not go on
If the system is operating normally, check the
connector between the system board and the
front panel. If OK, the light may be defective.
Prompt doesn't
appear after
system boots
A serious fault may have occurred consult your
dealer service department / Technical Support.
