Yah, my voltage on the right hand side varies a lot except for the vbat.. Im sure I have the latest bios version. My pc runs very smoothly, no errors after 18 hours of prime95. Played Doom 3 for two hours and everything appears fine. The diode reported reasonable temperatures (apart from that they were pretty high) before I reseated my heat sink so I can only assume that the reseating must have damaged it.