BSOD Randomly, tried 2 graphics cards, and reformat

So i just built this new PC well I upgraded everything from my old one except the hard drives and reformatted and installed x64 Windows 7 because I have 8GB of RAM now

It started getting BSOD right away so I updated some drivers and checked the memory, everything there was okay and it kept getting them, I was using a Radeon HD5670 but now have put my old Nvidia 8600GT back inside the computer because it seems more stable.

Here are all the minidump files, i don't know which is the latest because my system clock went all crazy

I looked at them using BlueScreenViewer and they all appear to be caused by ntoskrnl.exe

System Spec:

Windows 7 Ultimate x64
ASUS Crosshair IV Formula
AMD Phenom II X6 1100T
G.Skill Ripjaw 8GB DDR3 (2 X 4GB) RAM
Sapphire Radeon HD5670 1GB (Currently using Nvidia 8600GT)

It just crashed again while i was trying to run the BSOD Dump & System File Collection exe so I deleted all the other minidumps and ran it again here's the output

Thanks in advance if you can help

Changed to 32bit still having problems, any ideas?

I ran memtest86 on both sticks together and individually on different slots, they returned millions of errors each time, i read somewhere that increasing the voltage might fix it.

But i tried turning it on this morning, all the fans turned on and the cd drive span up but the screen remained black

Im fairly sure it wouldent be the motherboard, but i could get both sticks replaced for free with the same make/model RAM or will i need a different brand?