Blank screen and the power LED flashes Red seven times, once every second, followed by a two second pause, and the computer beeps seven times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause | Solution |
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System board failure (ROM detected failure prior to video). | Replace the system board. |
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Monitor does not function properly when used with energy saver features.
Cause | Solution |
Monitor without energy saver capabilities is being used with energy saver features enabled.
Disable monitor energy saver feature.
Dim characters.
Cause | Solution |
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|
The brightness and contrast controls are not set properly. | Adjust the monitor brightness and contrast controls. |
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Cables are not properly connected. | Check that the graphics cable is securely connected to the |
| graphics card (if applicable) or video connector and the |
| monitor. |
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Blurry video or requested resolution cannot be set. |
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Cause | Solution |
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If the graphics controller was upgraded, the correct graphics | Install the video drivers included in the upgrade kit. |
drivers may not be loaded. |
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Monitor is not capable of displaying requested resolution. | Change requested resolution. |
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Graphics card is bad. | Replace the graphics card. |
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The picture is broken up, rolls, jitters, or flashes. |
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Cause | Solution |
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|
The monitor connections may be incomplete or the monitor | 1. Be sure the monitor cable is securely connected to the |
may be incorrectly adjusted. | computer. |
| 2. In a |
| proximity, be sure the monitors are not interfering with |
| each other’s electromagnetic field by moving them apart. |
| 3. Fluorescent lights or fans may be too close to the |
| monitor. |
|
|
Monitor needs to be degaussed. | Degauss the monitor. Refer to the documentation that came |
| with the monitor for instructions. |
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160 | Chapter 8 Troubleshooting Without Diagnostics |
