I'm trying to push my Opteron 170 which runs rock solid at 2.7GHz @ 1.45v. This is if I have 270 x 10 selected, but if I try 300 x 9 I can't get into windows. Now I'm using a memory divider in both cases to keep the memory around 200MHz, which has timings that were stable at 216MHz, so I don't feel that it's the memory that is struggling (correct me if I'm wrong though) From what I can gather the DFI board should be good for HTT speeds over 275, but I'm not having much look, mainly because I don't know which settings to change. Increasing LDT voltage, Chipset voltage, and CPU voltage all have no affect. Do I need to change the memory timings when increasing the HTT or does it only affect the memory? Anything else I can play with, as I need more HTT to push the chip further. All suggestions greatly appreciated. TIA Dan.