sadly not, though i did the other day, built a system for a client, though i sent it off (d'oh).
I've sent it back to a mate who just did some work on it adding a gfx waterloop, to take a look at it. Have u ever heard of this before clunk?
It seems so bizzarre, the ram working perfectly one minute, swap the cpu then no more ram. The only thing is there is no bios beeps to indicate a lack of ram. I figure because everything seems to power on thats attached to the board its perhaps safe to rule the board out?