Question Computer shuts off randomly

Dec 31, 2020
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Please help! My computer will shut down randomly when I play certain games. I’ve been watching my temps CPU never goes above 62C and GPU runs at about 70C on max load. I have taken everything apart cleaned it and changed the thermal paste. My fans will randomly get loud but temp won’t move when they do. AIO pump is working with 2500 RPM when sitting in BIOS. My build is below please let me know if there is anything I’m not thinking of.
i7-8700k base speeds
Asus ROG Strix z370-e
32GB G Skill Memory
EVGA RTX 2080 ti ultra xc gaming (or something like that)
Cooler Master AIO
Seasonic 750W PSU.

CPU, motherboard, and PSU are the oldest parts about 2-2 1/2 years old. Most everything else is a year old or less
 
Dec 31, 2020
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Try a new PSU, I'm experiencing those issues with a new system and that seems to be a big recurring problem along with the ram.
 

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