Solving Display Problems - HP Compaq Pro 6305 Maintenance And Service Manual

After inserting a media card in the reader, the computer attempts to boot from the media card.
Cause
The inserted media card has boot capability.

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.
Table 8-5
Blank screen (no video).
Cause
Monitor is not turned on and the monitor light is not on.
Bad monitor.
The cable connections are not correct.
You may have a screen blanking utility installed or energy
saver features are enabled.
System ROM is corrupted; system is running in Boot Block
Emergency Recovery Mode (indicated by eight beeps).
You are using a fixed-sync monitor and it will not sync at the
resolution chosen.
Computer is in Sleep state.
Monitor cable is plugged into the wrong connector.
158 Chapter 8 Troubleshooting Without Diagnostics
Solving Display Problems
Solution
1. If you do not want to boot from the media card, remove
it during boot or do not select the option to boot from the
inserted media card during the boot process.
2. During POST (Power On Self-Test), press
boot menu.
3.
Change the boot sequence in F10 Computer Setup.
Solution
Turn on the monitor and check that the monitor light is on.
Try a different monitor.
Check the cable connection from the monitor to the computer
and to the electrical outlet.
Press any key or click the mouse button and type your
password (if set).
Reflash the system ROM with the latest BIOS image.
Be sure that the monitor can accept the same horizontal scan
rate as the resolution chosen.
Press the power button to resume from Sleep state.
CAUTION:
When attempting to resume from Sleep state,
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.
Systems may have a monitor connection on both the
motherboard or an add-in card. Try moving the monitor
connection to a different connector on the back of the
computer
F9 to modify the