Question Gtx 980 ti causing game crashes and unigine flickers ?

May 21, 2020
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View: https://imgur.com/gallery/Z4crSS2

Thats the error im getting this is happening on only ark either on windows 10 or epic game store version after 15 or so minutes play it'll orange screen and give me this error. On unigine it also happens after a while however its only flickers like as if ive taken out the hdmi and put it back in. Im really stuck on this ive tried upping fan speeds as temps was at 83 now sit at 67-66c and still the problem. ive tried upping the core voltage to 70 still crashes i honestly have no clue what to do as ive never encountered anything like this. plz help
specs:
gtx 980 ti watercooled clocks in unigine show as graphics:1595mhz memory: 3645mhz
i5 9400f
16gb ram
240ssd 2tb hdd