
| Technical Support (FAQ) | LM540 | 
| Error Message | Possible Solution | 
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| Input not supported | • Your computer has been set to an incompatible display mode. | 
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 | Right click on the desktop and choose Properties. Click the Settings tab then | 
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 | set your computer’s display mode to one of the settings listed in the resolution | 
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 | chart below. | 
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| Unsupported mode | • Your computer’s resolution is out of VESA specifications. | 
| try different video | Right click on the desktop and choose Properties. Click the Settings tab then | 
| card setting | set your computer’s display mode to one of the settings listed in the resolution | 
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 | chart below. | 
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Resolution Chart
| Resolution | Vertical | Resolution | Vertical | 
| (in pixels) | Frequency | (in pixels) | Frequency | 
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| 640 x 480 | 60 Hz | 800 x 600 | 60.3 Hz | 
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| 640 x 400 | 70 Hz | 800 x 600 | 72.2 Hz | 
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| 640 x 350 | 70 Hz | 800 x 600 | 75 Hz | 
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| 720 x 400 | 70 Hz | 832 x 624 | 74.5 Hz | 
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| 640 x 480 | 72.8 Hz | 1024 x 768 | 60 Hz | 
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| 640 x 480 | 75 Hz | 1024 x 768 | 70 Hz | 
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| 640 x 480 | 66.67 Hz | 1024 x 768 | 75 Hz | 
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| 800 x 600 | 56.3 Hz | 1024 x 768 | 74.92 Hz | 
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| LM540 | 15 | 17NOV04 |