hey mr. Nimrodaus, i noticed you had a x48-ds5 + q9550 and a pair of 4850's in crossfire. Iam having a bit of trouble getting my rig to be stable. It used to be, but since i put in an extra 4850 which now makes its crossfire., my system freezes during games, prime 95 and even in windows. Iam just wondering if you have encoutered any of these problems also and if it were possible if you could tell me your bios teak setings, such as MCH overvoltage and FSB overvoltage settings. sorry to bug you but you have almost the same setup as me and would greatly appreciate the info . Thanks a billion!