Originally Posted by Mr Bigman
I had this too with a Vista install with 8 gigs of ram.
Pulled the 2 sticks and vulla it worked ok so check all the banks of ram cuz Vista hates all banks used for some reason shaw.
I think that was only an issue with RTM (gold shipped code). The integrated SP1 worked with 8GB of ram, I've know cause I've done it without issue many times. So if he's got an original Vista copy that might be the problem.