HP Vectra VL6 6 User Manual page 62

3 Troubleshooting Your PC
If Your PC Has a Hardware Problem
If Nothing is Displayed on the Screen
If the display works correctly during the Power-On-Self-Test (POST),
but goes blank when Windows starts:
Check that you have enough memory for the video mode you have
•
selected.
If your screen's refresh rate is set too high, the screen might be
•
blank. If you have Windows NT 4.0, you can start Windows in "safe
mode" which will allow you to change the display settings. To learn
how to start Windows in "safe mode", refer to the operating system
documentation.
a If your display is DDC compliant, ensure that
Play display
the
Configuration
b If your display is not DDC compliant,
must be disabled. This field is in the
display
the
Configuration
section to ensure they are not too high.
Video
To know if your display is DDC compliant, refer to the display
documentation.
If nothing is displayed on the screen at all, but the PC starts and the
keyboard, disk drives, and other peripheral devices seem to operate
properly:
Make sure that the display is plugged in and switched ON.
•
Check that you have entered a password if you have set the keyboard
•
and mouse to "locked". You can change this setting in the Setup
program. Refer to "Security Menu Items" (refer to "HP Setup
Program", on page 66).
Check that the brightness and contrast controls are properly set.
•
Ensure that the display video cable is correctly connected.
•
Switch off the display, and unplug it from the power outlet.
•
Disconnect the video cable and examine the video cable connector
pins. If the pins are bent, carefully straighten them.
Check that the video upgrade is properly installed if you have one.
•
Check that an accessory board doesn't use the same I/O address as
•
the integrated video interface (03B0h to 03DFh). Refer to the
manual supplied with the accessory for further information.
50 English
is enabled. This field is in the
menu.
menu. Also, check the refresh settings in the
Video Plug &
section of
Video
Video Plug & Play
section of
Video