What could be causing my computer to freeze?

chainers

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May 10, 2013
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So I built a home brew computer about a year ago, and it started freezing right away when I first booted up windows. I shrugged it off as a coincidence, and ignored it (bad idea). The problem just keeps continuing with no real pattern. It will run fine for 2 days straight with no issue, or sometimes freeze 5 minutes after starting up. There isn't any real sound or noise coming from it, so I don't really know how to trouble shoot the computer. It will freeze when randomly browsing the internet, running idle or playing a game. I checked my temps and everything is normal.

I ran memory test, and everything came up clean. Any idea what else I could do to try and stop it from freezing?

Edit: Here are my components, sorry for forgetting:

CPU: AMD FX-6350 Vishera
MoBo: ASRock 970 EXTREME3 AM3+ AMD 970 + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard
Memory: CORSAIR 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 Desktop Memory Model CMV8GX3M2A1333C9
GPU: EVGA GTX 660

Please help! Thanks again!
 

chainers

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May 10, 2013
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I have an antec 750W PSU model HCG-750

I do have an after market cooler, but I installed that about 5 months ago and this problem has been occuring way before then. Do you think I should reinstall the cpu cooler?
 

chainers

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May 10, 2013
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Ok my BIOS needs updating. Do I need to uninstall something to update to the new Bios version or do I just install and let it do the rest.

I checked the voltage under the bios and I have no idea how to tell if it looks good. Most things are listed as min1.2 and max 1.4, with the highest being 2.0. IDK if this is good or bad though.

EDIT: Ok I updated the Bios, and am checking the CPU voltage. It is listed as min 2.56V and max 2.70V. Does this seem right?