OK 10th day without the cold boot issue now, seems like the 0805 BIOS fixed something Only thing other than the BIOS, i'm running my OCZ's @ 1,65V 1600MHz, 9-9-9-24 instead of the default 8-8-8-24!
Gotta have to see if that got something to do with it? But so far so good, running like a charm now