PC Freezing when gaming - Faulty PSU or MOBO

Hello guys, my pc 4 years old and self build ( i didnt change any part after build it).
When i try to play games my pc freezing with buzzing sound and forces me to close it. If i close my pc and try to open it again sometimes i can do it by 1-2 try but sometimes it took 50-100 restart click in order to open pc. ( btw without crash i can open and close whenever i want) What i mean by that; Everytime i try to open pc only case working. No signal on monitor and keyboard/mouse lights off ( which releated with my mobo. ) So i couldnt decide if its mobo issue or faulty psu. Because it happens only in games and i can play max 5-10 min. ( my fps is great ) Basically my pc haning after i play 5-10 min game. What i done so far;

-Fresh install windows.
-Update every single driver.
-Install and run furmark = 5 min cpu stress test no error - 5 min gpu stress test: got crash again.
-I check rams with memtest86+ looks good - no bad sectors on HDD.
-Heats when i got crash; cpu max 50° and gpu max 67°. So no overheat problem.

Layback Bear said:

Your power supply (Xigmatek 600W 80+bronze) was questionable when it was new.
If I had to fix your computer I would install a high quality power supply. Something like a EVGA or Corsair.

Jack

Hello jack, ty for your answer. So you mean my psu can lock mobo? Also 600w with 80+ bronze did really good job since my system 4 years old. If i will replace my psu i will buy 600W again i dont think its borderline my system anyway. But the question is Psu or mobo issue right? because i dont think my gpu faulty.

Layback Bear said:

Something to think on.

Motherboards seldom go bad and off brand power supplies often go bad.


Motherboards are almost impossible to troubleshoot in most cases but the obvious physical damage.

Jack

P/S
Sorry it took so long to get back to you. I have been under the weather.

Hello jack, thank you for your reply. I will go technician tomorrow. We will see its my mobo or psu. I will update post when we got solution and find faulty component.

Layback Bear said:

Something to think on.

Motherboards seldom go bad and off brand power supplies often go bad.


Motherboards are almost impossible to troubleshoot in most cases but the obvious physical damage.

Jack

P/S
Sorry it took so long to get back to you. I have been under the weather.

issue solved: new gpu. ty for helping tho.