I reset the bios, then had to change the boot order (MBR is on a drive other than OS, but that did get it back to the 2300... although, popatim, I haven't touch the thermal in this monster in 3 years, I think. so that's something that could still need to be done. I'm still confused about the event error though... I've read from people that worked in plants for dell and such, that cores can go bad, and also from people that say that they can't go bad... so I don't know. I already ordered the phenomII, so I'm not going to worry about it too much. lol. just gonna wait and see if it does the same thing in another PC later. Thanks for the help.