Dell OptiPlex GX150 - Manual (Page 77)

3. Click the program that no longer responds.
4. Click End Task.
Restart a Computer That Is Not Responding
1. Press and hold the power button until the computer turns off.
2. Press the power button to turn on the computer.
Repairing a Wet Computer
Spills, splashes, and excessive humidity can cause damage to the system. If an external device, such as a printer or modem, gets wet, contact the
manufacturer of the device for instructions.
Fill out the Diagnostics Checklist as you perform the following steps:
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then open the computer
cover.
2. Let the computer dry for at least 24 hours. Make sure that it is thoroughly dry before you proceed.
3. If you have a small mini-tower chassis, remove the AGP card brace.
4. Remove all expansion cards installed in the computer except a video expansion card.
5. Close the computer cover, reconnect the computer and peripherals to their electrical outlets, and turn them on.
Does the system have power?
Yes. Proceed to step 6.
No. Contact Dell for technical assistance.
6. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then open the computer
cover.
7. Reinstall all expansion cards.
8. If you have a micro tower chassis, replace the AGP card brace.
9. Close the computer cover, reconnect the computer and peripherals to their electrical outlets, and turn them on.
10. Run the System Board Devices test group in the Dell Diagnostics.
Did any of the diagnostics tests fail?
Yes. Contact Dell for technical assistance.
No. The problem is resolved.
Repairing a Dropped or Damaged Computer
Fill out the Diagnostic Checklist as you perform the following steps:
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then open the computer
cover.
2. Check all the expansion-card connections in the computer, and reseat any loose expansion cards.
3. Make sure that all cables are properly connected and that all components are properly seated in their connectors and sockets.
4. Close the computer cover, reconnect the computer and peripherals to their electrical outlets, and turn them on.
5. Run the System Board Devices test group in the Dell Diagnostics.
CAUTION: Before you perform this procedure, see " Safety Information ."
NOTE: If your primary hard drive is connected to a drive controller card and not one of the system board EIDE connectors, leave the
drive controller card installed in the computer.
CAUTION: Before you perform this procedure, see " Safety Information ."