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Computer won't power on when the graphic card is plugged in

Last response: in Systems
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May 22, 2010 7:50:04 PM

Hello,

i helped my friend build a system and everything was working fine until i plugged in the graphic card to the psu. Without the card plugged in, the computer turns on just fine but when i plug the graphic card in and turn on the system the fans spin one rotation then the system goes dead and i cannot turn on the computer for about 5 minutes of letting the computer be with the cord out even if the card is not plugged in

now i know that the most likely culprit is the psu but it seems like it would be enough but im no psu expert

He has a XFX Radeon HD5750 and this psu
http://www.newegg.com/product/product.aspx?Item=N82E168...

is the psu the problem here?
a b U Graphics card
May 22, 2010 9:00:37 PM

It looks sufficient, have you verified that the GPU is firmly seated in its slot? And that the PCIe connectors are properly installed to the GPU?
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May 22, 2010 10:37:13 PM

yeah everything was in place correctly, i just tested it out with my own gtx 285 and it powered up just fine so it was the graphic card, he is RMAing it right now thanks for your reply
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a c 195 U Graphics card
May 23, 2010 2:28:46 AM

NO! That PSU is absolutely fecal. Jonnyguru just reviewed an even "bigger" one, and found it was barely good for half its rating, and had horrible out-of-spec waveforms if loaded any more than that.

http://www.jonnyguru.com/modules.php?name=NDReviews&op=...

Hopefully it didn't kill your friend's GPU.
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June 2, 2010 12:42:39 AM

Best answer selected by kevorz.
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a c 195 U Graphics card
June 3, 2010 12:35:50 AM

Glad to help. Any of the Antec Earthwatts PSUs can handle that card, but I'd probably choose the 500W model for most efficient operation and some headroom. Corsair, Seasonic, and Enermax also make solid PSUs.
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