Dfi DL631-C226 User Manual download pdf (Page 100)

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Appendix D Troubleshooting Checklist

Appendix D

Appendix D - Troubleshooting Checklist

Troubleshooting Checklist

This chapter 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 indi-

vidually. 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 display’s 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 monitor’s power switch is on.

2. Check that one end of the monitor’s 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 system’s

display adapter.

4. Adjust the brightness of the display by turning the monitor’s brightness control knob.

The picture seems to be constantly moving.

1. The monitor has lost its vertical sync. Adjust the monitor’s vertical sync.

2. Move away any objects, such as another monitor or fan, that may be creating a magnetic

field around the display.

3. Make sure your video card’s output frequencies are supported by this monitor.

The screen seems to be constantly wavering.

1. If the monitor is close to another monitor, the adjacent monitor may need to be turned off.

Fluorescent lights adjacent to the monitor may also cause screen wavering.

Power Supply

When the computer is turned on, nothing happens.

1. Check that one end of the AC power cord is plugged into a live outlet and the other end

properly plugged into the back of the system.

2. Make sure that the voltage selection switch on the back panel is set for the correct type of

voltage you are using.

3. The power cord may have a “short” or “open”. Inspect the cord and install a new one if

necessary.

Floppy Drive

The computer cannot access the floppy drive.

1. The floppy diskette may not be formatted. Format the diskette and try again.

2. The diskette may be write-protected. Use a diskette that is not write-protected.

3. You may be writing to the wrong drive. Check the path statement to make sure you are

writing to the targeted drive.

4. There is not enough space left on the diskette. Use another diskette with adequate storage

space.

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Comments to this Manuals

ChrisMat 26 Mar 2024 | 14:33:44

Hello, im noob :)

Dfi DL631-C226 User Manual Page 100

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