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T6520 emachine. when i turn it on the fans start, the keyboard lights flash, the monitor led turns green (getting a signal) and about the time i'd expect to see some display image and/or hear the mobo spkr beep, the monitor led goes to amber (no signal). it had a graphics board - i removed and hooked monitor up to mobo video o/p - same results. i pulled all of the i/o power and data cables - same results. nothing smells burnt - no surge or lightning strikes - just won't reboot??? any suggestions?

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Based on your previous troubleshooting, with both built-in video and alternate video card, I'd guess you have a bad mobo. Anything else that was wrong with it (RAM, CPU, etc) and you'd get beep codes.

Sounds like it's time for a replacement board. If the eMachine is out of warranty, it might make more sense just to go ahead and upgrade now, as they are so inexpensive. If you are capable of replacing the board yourself, that would be the cheaper alternative.

Hope this helps - remember to rate (and great troubleshooting, btw!)

Scott

Posted on Oct 06, 2008

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