I think my new graphic card is rebooting my pc while gaming

[adrovic03]

I just bought a GTX 1080p to replace my old 7950 from amd.

Now when gaming under heavy load my pc reboots.

Observing the card the temperature sas 67°c .

Before that everything was fine with my old card. The PSU I got is a 850W modular one. The only difference from before is the 7950 had 2 4pins and the new GTX is 6pin but my power supply has it separated 4+2

Edit: btw yesterday I was gaming with the new card on a 1080p monitor for hours just fine. Today I got a 4k monitor and that's when the reboot happens while gaming Skyrim (heavily moded)

 

[thehutti]

Sudden Reboot seems to be a power problem in most cases. A 850W Power supply should normally be enough, but maybe it's damaged or simply not a good one. What PSU are u using exactly?

 

[adrovic03]

CORSAIR HX Series HX850 850W ATX12V 2.3 / EPS12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified

https://m.newegg.ca/products/N82E16817139011

I gotta say that PSU worked perfectly with my 7950 Radeon and the GTX 1080 while playing the game under 1080p resolution. It's the 4k that's making it all reboot.

EDIT: Also this is the message from windows action center: A problem with your video hardware caused Windows to stop working correctly.