Solving Display Problems - HP xw9300 Service And Technical Reference Manual

Solving Display Problems

Table 5-27 Display Problems
Problem
Blank screen (no video).
CAUTION: When attempting to resume from Standby mode, do not hold down the power button for
more than four seconds. Otherwise, the workstation will shut down and you will lose your data.
The display works properly
during the POST but goes blank
when the OS starts.
Power LED flashes Red six times,
once every second, followed by
a two second pause, and the
workstation beeps six times.
Cause
The cable connections are
not correct.
The monitor is off.
Screen blanking utility
installed or energy saver
features enabled.
System ROM is bad; system
is running in FailSafe Boot
Block mode (indicated by
eight beeps).
Computer is in Standby
mode.
Monitor settings in the
workstation are not
compatible with the monitor.
The display settings in the
OS are incompatible with
your graphics card and
monitor.
Pre-video graphics error.
Solution
Check the cable connections from the monitor to the
workstation and to a working electrical outlet.
Switch the monitor to on (LED is on). You might need
to refer to the monitor manual for an explanation of
the LED signals.
Press any key or click the mouse button and, if set,
enter your password.
Reflash the ROM using a ROMPaq diskette.
Press the power button to resume from Standby
mode.
1. Restart the workstation and press F8 during
startup when you see "Press F8" in the bottom-
right corner of the screen.
2. Using the keyboard arrow keys, select Enable
VGA Mode and press Enter.
3. In Windows Control Panel, double-click the
Display icon and select the Settings tab.
4. Use the sliding control to reset the resolution.
1. Restart your workstation in VGA mode.
2. After the OS starts, change the display settings
to match those supported by your graphics card
and monitor.
3. Refer to your OS and graphics card
documentation for information on changing
display settings.
For systems with a graphics card:
1. Reseat the graphics card.
2. If using PCI Express card with auxiliary power
cable, be sure it is attached.
3. Replace the graphics card.
4. Replace the system board.
Troubleshooting Scenarios and Solutions 149