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Compaq Presario desktop with blank screen

\015 I have a Compaq Presario desktop (with onboard vga) that when booted nothing appears on the screen. The moniter does not even wake up. I've tried switching moniters, adding a graphics card, and power supply. All with the same result, blank screen. What should I try?\015

Answers :

Reset or Clear CMOS because maybe it hang-up some devices that are plug-in to. You can do that by removing the Lithium Battery on the Motherboard. This tips are only technician can do that but to solve your problems like this, this is a tip. And also check your Memory Module.
Hope this might help you, good luck!
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