My computer freezes very often.

[Quavadis]

These are my computer specs:
Motherboard : ASUS P8P67 Pro Rev 3.1 Intel P67
PSU : OCZ ModXStream Pro 600W
Processor : Intel Core i7-2600K BX80623I72600K Unlocked Processor
Graphic card : XFX HD R7970 Double Dissipation
RAM : 4x4gb G.SKILL Sniper Low Voltage Series

I use 2 monitors : ACER S232HL and Vision V1721DB

My problem is my computer freezes very often.
I have tried to reinstall my driver graphic card, I still have the same problem.
I have tried to turn on my desktop for the whole day without using it, I didn't have any problem. So, I don't think my problem is overheating.
I have tried to unplug my graphic card and install it again (didn't work)
My only problem is when I use my computer, my computer freezes and I have to restart my computer.

I think my problem is my Graphic Card because that is the last item that I installed to my computer.
what do you think guys?
should I try to reinstall the whole system?

 

[electrontau]

"I think my problem is my Graphic Card because that is the last item that I installed to my computer."

Not true. The only way to find out if graphics card is defective is to use some other card and see if the computer will freeze.

Try also running Memtest86 to check if the memory sticks are ok. My very first build had a bad memory and computer would not boot.

Download diagnostic tools from hard drive manufacturer to check hard drives.

 

[Quavadis]

Thanks man...
What do i need to do if my problem is my RAM?