[SOLVED] is my PSU going bad ?

Shagless

Honorable
Mar 26, 2015
30
0
10,530
Hello i have this problem for a couple days when try to open my pc it starts for a split second fans spin and it instantly shuts off. I tried removing the rams and the gpu nothing changes but sometimes im able open the pc when i remove all the usbs but its completely random like every 30 attempts i get a 1 succesfull boot after that it works fine.
I am able to play games etc no problem so I dont know what causes it. It seems like a dying PSU to me. i need help.

mobo: msi z270 pro gaming carbon
cpu: intel i7 7700k
gpu: Asus tuf gaming 3070ti
Psu: cooler master 750mwe gold
ram: corsair vengeance 2400mhz 2x8gb
cooler: nzxt x53kraken 240mm
case: nzxt h510i