Troubleshooting Guide
www.hp.com
2–8
Troubleshooting
Blank screen (no video)
(continued)
.
You may have a screen
blanking utility installed or
energy saver features are
enabled.
Press any key or click the mouse button
and, if set, type your password.
Computer is in
standby
mode.
Press the power button to resume from
standby
mode.
Ä
CAUTION:
When attempting to resume from
standby
mode, do not hold down the
power button for more than four seconds. Otherwise, the computer will shut down and
you will lose any unsaved data.
You are using a fixed-sync
monitor and it will not sync
at the resolution chosen.
Be sure that the monitor can accept
the same horizontal scan rate as the
resolution chosen.
The VGA/BNC selector
switch on the monitor
(some models) is not
properly set.
Set the selector switch to agree with
the cable connection.
Bad monitor.
Try a different monitor.
Power LED is flashing
and computer will not
start.
Initernal error has occurred
and the computer is
flashing a code.
Refer to
“Interpreting Diagnostic Lights
and Audible Codes”
to interpret the
error code.
Problem
Cause
Solution
