Question Crashing on games

[hamza4refdfsaz]

Ok so when i play something like roblox when i am on max graphics i get 400 fps but 10 mins later i crash when i'm like on 5 graphics i dont crash my specs are

ryzen 3400g
gtx 1660
16gb of ram

 

[rgd1101]

make and model of the psu?
cpu/gpu temp and usage during the game

 

[hamza4refdfsaz]

my psu is
Tx-m series 550 gold semi modular and my cpu is usage is like 70% and my hovers 30% or 60%

 

[hamza4refdfsaz]

Whenever i play on high settings it crashes but when im on like medium-low it doesnt

 

[rgd1101]

what the cpu/gpu temp?
got another psu for testing?

 

[hamza4refdfsaz]

i do not it also my cpu hovers around 40-50 degrees and gpu is 50-60