^^ you have the motherboard screwed into the grounding shield and are using all screws except the 6 long case screws ? - what you are getting creatox can be caused by no ground (unless you have all the screws in that is)....if that doesn't help then try the x-clamp fix again but do a proper re-flow none of this leave the fans off for 20 min stuff

...I now use 2 washers underneath the board...1 on top for the cpu and 2 on top for the gpu and I don't screw through the grounding shield (reason:hardly any flexing/warping this way)...PM me if you want to know the process in a bit more detail (has changed a bit since that long post I wrote) to save the fight
gigabite