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Overclocking GTX 1080 Ti

Specs:
Gigabyte Aorus Gtx 1080ti extreme edition
i7 7700k oc to 4.8ghz
16gb ddr4 ram
600w psu

Hello, recently i have bought a new gtx 1080ti and have been trying to overclock it. I have reached up to 1780mhz gpu boost, however if i go any higher, like such at 1820mhz, the pc runs but when i start a game the game instantly crashes, and if i go all the way up to 1900mhz, the pc just shuts down.

I was wondering if this could be a fault of the GPU or if its the fact that i only have a 600w psu, and if upgrading to 750w would help?

Thanks!
Reply to district15
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  1. Best answer
    What model is your PSU? If it some cheap PSU then it could be the reason why, GPU draw around 280w at stock speed,
    7700k around 130w at stock speed + power for your other components. So it most likely that you need higher power rated PSU.
    Does it work fine on stock speeds?
    Reply to Makentox
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