PC keeps rebooting after i changed to new GC

Plabye

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Jan 15, 2016
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Hello, so I have a problem, I changed my GTX 660ti for a GTX 680 and now my PC keeps rebooting.

I checked that all the cables were correctly plugged in, they are.
Before buying it, I asked many people of my power unit would take it, they all said yes: it's a Corsair CX750, with 750watts. people told me it was even more than necessary
I rebooted my Bios like someone told me

Yet, it keeps rebooting and I have no idea why, I even called an informatics shop and explained everything, they said they don't understand why it doesn't work
 

stmaki16

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Aug 25, 2012
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Can you give me a bit more information? Such as what is displayed on the scree before reboot. If the screen says anything while in that process? Also what kind of motherboard are you running? Are you sure that the bios are fully updated from the manufacturer and support the card? It should support it since it is still a 600 series card but it is still worth looking at. Have you tried running that computer on integrated graphics(if you have it)?
 

Plabye

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Jan 15, 2016
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It rebooted randomly, sometimes even rebooted again before I enter Windows.
I tried many things, I hard rebooted the bios (i took off the little battery and put it back in after a few minutes), I completely reinstalled Windows..
Then I put my old GC back in and it was still rebooting, so someone told me to desable the "anti-surge" option in my bios, which I did. I also disabled the auto overclock of the CPU cause the same guy told me it could be a problem as well
Then I tried a game and it didn't reboot: instead, the screen turned all black and i couldn't do anything except rebooting...

I tried so many things and it still doesn't work
My components are
-intel core i5 3570K
-8gb Ram
and my graphic card u_u

I even updated my motherboard.
I really don't know what to do. I tried most of the stuff that helped people find the solution
 

Plabye

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Jan 15, 2016
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Well I don't understand, you say that you have 600W and you think it's awesome and I have 750W and it's worse ?
I don't think I need more power, 750Watts should be enough :c
Would getting a Corsair with 850Watt help ?
EDIT=Moreover someone told that some people who even have a PSU with 1200Watts have the problem