I was trying to request support from ASRock, but i couldn't provide a serial number for my MB, as i purchased my PC pre-built, and opening the case would break my warranty contract. So i decided to ask for help here. 

As i said, i purchased a pre-built PC, with the following configuration:

ASRock 960GM-VGS3 FX

AMD FX-8350

RADEON R9 280 (3GB)

KINGSTON SV300 120GB SSD

M-TECH 800W PSU (don't know any details)

Within a few days after the PC arrived, as i was playing, the PSU suddenly shut down, and had to be replaced. Since then the issues (crashing, restarting, blue screen) didn't seem to go away, only that I'm more careful now. 

I was suspecting the PSU again, as they used the exact same type as replacement, and was ready to have it changed to a more trustworthy brand, when someone noticed after seeing my configuration, that according to the ASRock website, the MB doesn't support the CPU that i have. 

When i asked their tech support via email, they told me, that even if it's not shown on the website, the MB fully supports my CPU, there's no possibility of any compatibility issues, and it cannot be the root of my crash problems. 

I need a second opinion on this, but as i said, i couldn't contact ASRock support directly, so if there's anyone here reading this forum that can confirm that what they told me is true, i would really appreciate it. 

Best regards!