Wow, finally some discussion in this thread again! Well, CPU-Z here sais it is Santa Rosa cores and so do all the shops I looked at here in Norway. It is kinda strange. I dont remember the stepping on my Opty, have a picture somewhere here, but impossible to find because I am testing Vista and its caos here. Can look for it later, but it is same as one of the CPUs mentioned earlier in the thread. By the way, by clocking with clock gen I managed to get to 3262MHz, link or a screenshot is coming as soon as I find it.