DFI NB78-BL Manuale Utente

English

2.3 Troubleshooting

This section of the manual is designed to help you with problems

that you may encounter with your personal computer. To efficiently

troubleshoot your system, treat each problem individually. This is to

ensure an accurate diagnosis of the problem in case a problem has

multiple causes.

Some of the most common things to check when you encounter

problems while using your system are listed below.

1. The power switch of each peripheral device is turned on.

2. All cables and power cords are tightly connected.

3. The electrical outlet to which your peripheral devices are

connected is working. Test the outlet by plugging in a lamp or

other electrical device.

4. The monitor is turned on.

5. The displays brightness and contrast controls are adjusted

properly.

6. All add-in boards in the expansion slots are seated securely.

7. Any add-in board you have installed is designed for your system

and is set up correctly.

Monitor/Display

If the display screen remains dark after the system is turned on:

1. Make sure that the monitors power switch is on.

2. Check that one end of the monitors power cord is properly

attached to the monitor and the other end is plugged into a

working AC outlet. If necessary, try another outlet.

3. Check that the video input cable is properly attached to the

monitor and the systems display adapter.

4. Adjust the brightness of the display by turning the monitors

brightness control knob.