just recently put together a new computer with a GA-K8VT800 mobo, Athalon 64 3000+, and two sticks of 512 MB DDR 400 Crucial Brand RAM. It was working for a couple of days but it will no longer boot windows XP and re-install freezes after all the drivers are loaded and it says "Windows is setting up...". After looking at some symptoms, my friend and I determined it to be a RAM problem since originally Windows just cut out on me and now won't boot (as if there isn't enough RAM to load it). Here's the real kicker, The system will try and load windows XP if the RAM is located ONLY in DIMM slots 2 & 3 (right most ones), any other combination (including just one stick) makes the system lock up after the initial RAM check (before the IDE is even checked). Can anyone offer any help here? I didn't even try overclocking anything yet. Do you think it's a mobo problem? or a RAM problem? Could the RAM I'm using just have crapped out? Is Crucial RAM notorious for not working on this board (GA-K8VT800)? or is has my board's RAM controller gone on the fritz? all other components work and I've tried a BARE MINIMUM system, (CPU, board, RAM) but the same RAM behavior occurs. I also have updated to the latest mobo BIOS, but to no avail. Any help would be appreciated, thanks in advance!