HP Dc7100 Troubleshooting Guide - Page 35

Solving Display Problems, Problem, Cause, Solution, standby, CAUTION

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Troubleshooting Without Diagnostics Solving Display Problems If you encounter display problems, see the documentation that came with the monitor and to the common causes and solutions listed in the following table. Solving Display Problems Problem Cause Solution Blank screen (no video). Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on. Bad monitor. Try a different monitor. The cable connections are not correct. Check the cable connection from the monitor to the computer and to the electrical outlet. 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. System ROM is bad; system is running in FailSafe Boot Block mode (indicated by eight beeps). Reflash the ROM using a ROMPaq diskette. See the "FailSafe Boot Block ROM" section of the Desktop Management Guide on the Documentation CD for more information. 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. 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 your data. Troubleshooting Guide www.hp.com 2-19

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Troubleshooting Guide
www.hp.com
2–19
Troubleshooting Without Diagnostics
Solving Display Problems
If you encounter display problems, see the documentation that came
with the monitor and to the common causes and solutions listed in the
following table.
Solving Display Problems
Problem
Cause
Solution
Blank screen (no video).
Monitor is not turned on
and the monitor light is
not on.
Turn on the monitor and check that
the monitor light is on.
Bad monitor.
Try a different monitor.
The cable connections
are not correct.
Check the cable connection from the
monitor to the computer and to the
electrical outlet.
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.
System ROM is bad;
system is running in
FailSafe Boot Block
mode (indicated by
eight beeps).
Reflash the ROM using a ROMPaq
diskette. See the “FailSafe Boot
Block ROM” section of the
Desktop
Management Guide
on the
Documentation
CD
for more
information.
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.
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 your data.