I have been having an issue for over two months now where my computer completely freezes for no apparent reason and without any kind of error message or indication as to why it froze showing up on the event log. For a time rolling back the nvidia drivers to 314.22 fixed the issue but it no longer works. I once found that removing the card (460 GTX) and using an older Nvidia card stopped the freezing from occurring so I recently decided to upgrade to a Gigabyte 660 GTX, but the freezing continued. I have already run test on hardware (memtest, GPU stress test, etc) and have found nothing wrong with any of the hardware. What can I do to determine what is wrong?
ASUS P8B75-V motherboard
Intel Core i3-2100 Sandy Bridge 3.1GHz CPU
Crucial Ballistix Sport 8GB 240-Pin DDR3 x1 RAM
GIGABYTE GV-N660OC-2GD GeForce GTX 660
BFG Tech BFGR650PSU 650W PSU
3 hard drives whose exact names I cannot remember
current nvidia drivers is 314.22