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Dad's computer stopped working. Powers on immediately after being plugged in

#1goldelitekingPosted 10/9/2013 2:28:28 PM
It's not sending any signal to the monitor. I opened it up, reset the cmos, reseated the RAM, and it still doesn't work. When I plugged it back in, it would turn on automatically without pressing the power button on the case.

I've had a similar problem before, and it was a motherboard problem. Does that sound like it could be the same problem?

Here's the specs:

Gateway site:
http://support.gateway.com/s/desktop/2009/gateway/dx/dx4300/DX4300sp2.shtml

8GB DDR2
AMD Phenom X4 9750 Quad
64 bit Windows Vista
ATI Radeon 4650
300W Power Supply
This is the mobo:
http://www.ebay.com/itm/GATEWAY-DX4300-03-MOTHERBOARD-MB-G0409-005-MBG0409005-/131003117744

My dad doesn't game, but he's a photographer and has thousands of photos on this computer's hard drive that he doesn't want to lose. He's not opposed to me building him a new computer for roughly $500, but if I can just replace a few parts, that'd be best.
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When Alexander saw the breadth of his domain, he wept... for there were no more worlds to conquer.
#2Black_King945Posted 10/9/2013 9:28:52 PM
Sounds like a defective PSU or motherboard. Motherboard is usually the case, board is shorting out somewhere causing immediate power on.


If it's the board, repair is not reasonable. Replacing board, RAM and CPU with current gen is a much better investment.


If he values his work he should really get an external backup drive, second of all he should build a more reliable computer, those OEM boards are garbage.
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i7 3770K | Asus Maximus V Gene | 16GB Gskill | Asus 660ti | Seasonic 500W