Question PC shuts down anytime I launch any game (except Brawlhalla)

[David Lugarov]

Hi guys, I have an MSI GS60, which is pretty damn old by now, with an 850m and it's been dropped more times than I can count, I've always managed to salvage it by popping the back open and doing whatever I need to do but rn I'm very confused as to what is happening and I could use some help from the community for running diagnostics and fixing this, basically, if my laptop stays running for several hours straight at some point it'll turn off, if i launch payday, or even a less intensive game like raft, it shuts down, for some reason i can play brawlhalla but yeah, it's dying on me all the time, I assume the issue is related to the GPU but i'm clueless tbh

 

[Nemesia]

Probably the PSU dying. What are your temperatures at IDLE? CPU and GPU.