Computer Freezes as soon as I start a Game - XFS 7850 - Please Help!

[Nickthebest]

Hi everyone! I have a computer which I encountered a problem with a few weeks ago. I had built this computer very recently (6 months ago) My computer freezes as soon as I start any game on my computer. It also freezes when i start steam or Uplay. I have done a few check to see what could be wrong. The computer also wouldn't let me go on task manager as I had no other option but to manually restart it.

I checked the temperature on the CPU (its 35 degrees)
I checked the temperature on the GPU (its 31 degrees)
I also tried using old drivers for my Graphic card to see if that would be the problem
I also tried going on safe mode and trying if my games work from there, but I had no luck
I also ran FurMark because my friend told me to (but honestly i dont even know what the program does)

My specs are:
XFS 7850
AMD Fx 8120
8GB RAM
Gigabyte 970A-D3 Motherboard
Corsair 750 PSU
4 additional fans

I have no clue what can be wrong. Do you think its a software issue or hardware issue! It would be great if you guys can help. Thanks in advance!

 

[Mace ya face]

Check for viruses. Run Memtest86+ (Should say error if there is problem). Then do a Disk Check on you're hard drive. If no luck, then make sure you have a good PSU and that your mobo is not damaged.