New PSU and Graphics Card now won't boot to windows

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Stumped49

Reputable
Oct 17, 2014
2
0
4,510
Hi

My specs:
Asus p7p55d-e motherboard
i5-760 processor
8GB ram

I changed from a radeon 5770 to a radeon r92-270 graphics card and a Gigabyte 400w to a Corsair CX500 PSU.

Now the PC will boot but only as far as Windows, after that it immediately shuts down like the power has been cut. So... thinking it might be the graphics card drivers tried safe mode, and then took out the card and put my old one back.

With just the replaced PSU and original graphics card it won't even boot to safemode. I get a few seconds of my old desktop on a normal boot and nothing of safe mode before the power cuts again. I've re-checked all of my connections MANY times at this point.

What have I done wrong?
 
Solution
C
I agree that Corsair PSUs aren't the best. If you still have your old parts, try booting with the old PSU and the new card and see if that works, if it does then there's a problem with the PSU and you'll have to send it back. Also try with the old GPU and new PSU to see if the problem is the other way round.
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Newbbuilder11

Newbbuilder11

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Feb 6, 2014
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If power is cutting off then it's the PSU, the CX brand of PSU is really bad(made it to tier 3, really bad)
 
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Chalky10x

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Apr 12, 2014
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4,540
I agree that Corsair PSUs aren't the best. If you still have your old parts, try booting with the old PSU and the new card and see if that works, if it does then there's a problem with the PSU and you'll have to send it back. Also try with the old GPU and new PSU to see if the problem is the other way round.
 
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