BSOD > restart while loading into OS

Hello All,

The brains of this forum was able to help me out when I first build this computer and all was well for almost a month until now.

Here's my system:

running windows 7 x 64

MSI P67A-G43 (B3)
Intel I5 2500k with a Coolermaster hyper 2x12
Nvidia GTX 560 Ti SC
2x4GB of Patriot G2 DDR3 RAM
PGD38G1600ELK
WD 1TB Model: WDBAAZ0010HNC
ASUS DRW-24B1ST
Antec HCG-750


Here's my problem:

Computer has ran perfectly for 3 weeks, I usually leave it on overnight. I had it clocked to 3.8 and my temps were sitting at 45 degrees Celsius, I highly doubt it's a proc issue.

So one day, when I woke up, the computer was off and when I started it up, it posted and began loading windows 7, after about 5 seconds it blue screens for a split second, then restarts.

Can't boot into safe mode either.

I can get into windows recovery mode and I ran disk check, no issues.
I individually tried both RAM sticks too, and ran memory tests, not the issue.

Something I found interesting but don't know what to make of it, windows gave me this error while it was attempting to repair issues it apparently saw.

Problem Signature 01: 6.1.7600.16385
Problem Signature 02: 6.1.7600.16385
Problem Signature 03: unknown
Problem Signature 04 21200396

Problem Signature 05 Autofailover

Problem Signature 06 3

Problem Signature 07 CorruptAcl 6.1.7601.2.1.0.256.
1033

I also tried a previously known good configuration, nothing.

I also threw this into another tower and no blue screen, just automatically restarts and gets the same issues regarding problem signatures.

I stupidly can't get a hold of a boot disk at the moment but I'm working on it, I also don't see this being a windows issue but I may be naive in thinking that.