I just recently setup another Ultra-D which was easy as pie. Before I put everything in my case, I decided to run open air becnh to get everything setup etc... Everything is fine, and I get up to a nice 300x9 on my Opteron 165 @1.52 volts 166 mem divder. Dual prime overight and everything is ok. Now I go to load it in my case, and now B/C of my PWMIC temps are about 5-6C higher inside my case, my second core fails and I know its B/C of that, as my cpu temps are still the same 48C. So I have a 120mm fan blowing over it and an 80mm fan over my ran. this was fine outside my case but not inside. My case is a moddified Cheiftec SOHO case with two 80mm in the back and 120mm in the front for intake. My Ambients are high around 80-83F my mom loves the heat in the winter, but I am thinking a new case should work. I am open to ideas and mods, the cheaper the better.
EDIT** It seems Small FT's in Prime 95 are fine, but blend is not, so I am betting my UTT is not quite stable at 250FSB, thus I am gonna back them off a bit. I will bo more testing and update when I can.