For some reason, when ever I try to OC with my DFI Board (NF4 Ultra D with A64 3000) It wont change my settings. What I mean is that I will cahnge the bus speed, etc. and I dont see any evidence that there even was a change. Also, when ever I try and change the DRAM Voltage, It reverts back to 2.6V, no matter what I choose. All BIOS settings are at default right now. Which do I need to change?