PC Restarts Randomly

Gediminas Gaucas

Honorable
Jul 19, 2015
28
0
10,530
Hello,

So I've been having this problem for a few days, my PC just simply freezes or restarts instantly whenever it want. It can happen while the windows loading screen, while browsing internet or playing games. Sometimes when it freezes my speakers starts playing a strange and annoying noise.
I tried Windows 7 64-bit and now I'm on Windows 8.1 64-bit. I disabled Windows automatic restart, but still there's no difference. The PC itself is new, I bought it like 2 weeks ago.
Maybe it's the drivers fault, maybe it's the PC itself? I have no clue.
I'd be happy if someone could suggest something. :)

SYSTEM:
OS - Windows 8.1 Pro 64-bit
Motherboard - Gigabyte 970A-UD3P
CPU - AMD FX 8320 ( 8 core ) 3.5GHz
Memory - 16GB
GPU - Radeon R9 280 GDDR5 3Gb (384bit)
PSU - Cooler Master 700W
2TB SATA3 7200rpm 64Mb
120GB SSD SATA3 ( this one isn't in use, when I installed windows it just didn't appear )