I got new PSU, I bought it few days ago. it won't turn on with both the new and the old PSU. The PC will turn on only without external GPU as I wrote.
Anyway, if you still want the specs then here it is -
CPU: I5-9600K
MB: Asus ROG Z390-H
Ram: HyperX Fury 2x8GB 2933Mhz
PSU: Antec HCG-650G...