HP dx2250 - Microtower PC Troubleshooting Manual page 17

Poor performance is experienced.
Cause
Too many applications running.
Some software applications, especially games, are stressful
on the graphics subsystem
Cause unknown.
Blank screen (no video).
Cause
Monitor is not turned on and the monitor light is not on.
The cable connections are not correct.
You may have a screen blanking utility installed or energy
saver features are enabled.
Computer is in standby mode.
You are using a fixed-sync monitor and it will not sync at the
resolution chosen.
Monitor cable is plugged into the wrong connector.
Bad monitor.
ENWW
Solution
1. Close unnecessary applications to free up memory.
Some applications run in the background and can be
closed by right-clicking on their corresponding icons in the
task tray. To prevent these applications from launching at
startup, go to Start > Run (Microsoft Windows XP) or
Start > All Programs > Accessories > Run (Microsoft
Windows Vista) and type msconfig. On the Startup tab
of the System Configuration Utility, uncheck applications
that you do not want to launch automatically.
CAUTION: Do not prevent applications from
launching at startup that are required for proper
system operation.
2. Add more memory.
1. Lower the display resolution for the current application or
consult the documentation that came with the application
for suggestions on how to improve performance by
adjusting parameters in the application.
2. Add more memory.
3. Upgrade the graphics solution.
Restart the computer.
Solution
Turn on the monitor and check that the monitor light is on.
Check the cable connection from the monitor to the computer
and to the electrical outlet.
Press any key or click the mouse button and, if set, type your
password.
Press the power button to resume from standby mode.
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.
Be sure that the monitor can accept the same horizontal scan
rate as the resolution chosen.
Ensure that the monitor is plugged into an active connector on
the rear of the computer. If another connector is available,
connect the monitor to that connector and reboot the system.
Try a different monitor.
Solving General Problems 11