Romalus

I recently built my computer back in April of this year and it's been running smoothly ever since. I decided to buy a new kit of RAM to replace my Corsair XMS3 1333 DDR3. There hadn't been an issue with the computer or the RAM but I wanted something a little flashier. About that time the identical set of RAM in my other computer failed, so I decided to just replace the memory with the old XMS3 kit which had not had any problems. The new kit of RAM that I used for my main rig is the Corsair Dominator GT at 1866, I manually set it to 1600 to keep from having to up the voltage on my processor. The RAM lasted about 3 weeks before I began receiving BSOD error "Page Fault in Non Paged Area."

Now, what is bothering me, is this is the exact same error that plagued my second computers XMS3 set which was replaced with my main computers kit when I bought the Dominators. My question is this; Do I just have terrible luck with memory, or is there another likely cause to my problem that I am overlooking? Aside from the BSOD errors, I have run Microsoft Memory Tool and Memtest, both reported memory errors. Normally I'd just take what the programs say and RMA the memory but I am a bit weary after 2 sets have failed in two separate machines with the same error.


My main computer:
MSI Eclipse SLI
EVGA GTX295 Red Edition
Corsair Dominator GT @1866 6gb manually lowered to 1600 for stability
i7 965 EE - not overclocked
Corsair 850 watt psu

My Secondary computer:
EVGA X58 SLI
Sapphire ATI 4890
Corsair XMS3 DDR3 @1333 - 6gb
i7 920 C0
Corsair 750watt