So I just got a Asus P5p43td motherboard with a quad core 2.66ghz processor along with 4 gigs of gskill (g.skill) ddr3 1600mhz (f3-12800cl9d-4gbnq) and the computer posted fine and seemed all around good with the memory at dual channel. So I was backing up files on my old computer (took forever) before I decided that I was going to put everything else into the new computer. Once that was done I put in the HDD and the graphics card and swapped out my power supplies, now the new computer had a 550watt antec power supply. So I turned it on and booted my windows 7 64bit DVD and it looked fine, a little slow and all the sudden WHAM cant read any files off the disk. So I was like great this is prob a memory problem and rebooted to Hiren's 10.1 and ran memtest. after three or four seconds it encountered errors. So I went reading to find that this memory that is in the book to work perfectly with this motherboard sometimes causes issues because of timings and power. I went with a few of the recommended settings and the memory errors went away and I was able to boot the DVD and then it failed to read again right before install. So I kept searching to find that it could be the power supply being a little too weak but not definitely. Some people swapped the power supply and it helped but the problem came back after a week or so. So I switched the memory to single channel instead of dual channel and everything started working. From what I can tell the memory is the culprit and that my wanting to try some new memory idea was probably a bad one but I can live with single channel for now, this thing is a beast as it is. When I get more money ill buy a new graphics card and some good old corsair memory. I however cannot recommend g.skill memory, after hearing that it was pretty good I never had troubles like this one, at least out of the box.