620w could be cutting it close for all the things you have in that build, and just because your not over the total average wattage your transiant power spikes could be a bit too much. lots of fans and 4 hdd plus a water pump. that 1080 is 254w card. so yea might just be a bit under sized psu. also keep in mind that psu's lose power over time. so if the system is running hard for many hours the psu will slowly lose its total power ability. I think they say like up to 15% per year. i would expect its much less than that because your not in a worst case senario most of the time.
I dont know how to explain this, earlier on my post i found a page, they're encountering my problem too as you can see they have higher wattage than mine, I agree with you maybe the game pushing the hardware that may cause pc reboots itself.Your power supply is not known for being stable with high compute loads. https://forums.tomshardware.com/threads/pc-rebooting-randomly.2835559/
I would bet money that if you were to do real stress and stability tests, you would find the system is in fact not stable and it has nothing to do with any one game.
It is quite common for instability to surface seemingly with one game only. But the reality is, the PC was unstable and the game triggers it because a new release game is going to push hardware much harder than previous generation games.
Or, it could be a GPU driver issue, but my money would be on that power supply. Sorry you are going through this, as I know it is not what any gamer wants to hear.
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Yes tried all the possibilities i didn't get any single shut off, More info my temps are all low, all voltage are correct 3.3v ,12v, 4.950v using hwinfo, only this game. It's really weirdmight be possible the power phases are not so great on that mobo any longer too, if i recall correctly it only uses 4phase vrm for that cpu. And that could be causing issues if one of the phases has been getting hit hard too long. i know a buddy who has that board and he fried one of the stages lol. he was running a 2700x tho.
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have you run a prime95 test on the cpu yet? watch your vrm temps in HWinfo64 (sensors only on loading) if it passes for a while and temps look fine then maybe do like 10threads in prime and a furmark and see if it shuts down.
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