Question PC is in a Boot Loop

randomuser22

Commendable
Jun 15, 2020
23
1
1,515
(boot loop vid)


Hello Tom's Hardware community, I am asking for your help again.

I have recently bought several used parts mainly the CPU (i5-3570k) and a Motherboard (PH67S-C43 (B3)) and today every part arrived so I assembled it all together. Now I also have an graphics card (R9 290 Sapphire Vapor-X) I have calculated it all on a PSU Calculator (the outervision one) and it all fit under 500w, now here's the problem, It starts (lights come on) but after a few seconds (4-5 ish) it turns off. I have tried changing my RAM but to no avail even removing the GPU. I know it's not an comparability issue cause I have searched on multiple sites if my CPU is compatible or not. Thanks again.