Reading through the thread right now. I've not had that thought before, the memory controller that is, I have however had many a worry that my mobo was of the Foxconn type and thus never pushed my CPU too far, it might be more prudent to physically check the CPU for damage.
A thought I have had is if there is no obvious signs on either CPU/mobo, if I can find a constant way to make the system fail I can then buy a replacement mobo to test with, if the PC fails it's the CPU, if not then it's my current mobo, either way I can then DSR the new mobo, as much as I hate doing this it does seem to only real option left to me. A long shot but any suggestions on how to make my system constantly crash that I may not have thought of?
EDIT:
Interesting, searching for my model board (P5P77D-LE) and faulty RAM slots picks up quite a few results, more than I'd like to be seeing in all honesty.
This was an interesting read, I'll be checking my pins over in the next couple of days when I get the chance as I've always thought my CPU temps were higher than other peoples using the same coolers and a higher voltage.
EDIT 2:
I've contacted Asus about an RMA as the evidence points mostly towards that being the offending component, lets see what happens now!
EDIT 3:
Well Windows is reporting 4gb but only 2gb available again, fitting again with the faulty motherboard pins. Tomorrow when there is more light I'll remove the CPU and inspect it and the mobo pins.