I tried looking up the manual but that part of DFI's site wasn't working. What the others have said is correct though. Once you have your processor overclocked and stable the best way to keep the memory stable is to make sure it has a little more voltage...but not too much. Since your memory is rated to run at those times at 2.1V I wouldn't go over 2.2V, especially if you don't have any kind of cooler on your memory. When you set it at 2.1V what does your BIOS say it is at. Many motherboards suffer (if you want to call it that) from Vdroop...meaning the actual voltage isn't quite what you enter it as. On mine, if I enter 2.1V it usually ends up at between 2.06 and 2.08V. I don't know if memory manufacturers take that into account so you may want to put your voltage a little higher than 2.1 until the actual value reads 2.1. Then try the EPP timings (and you should find the command line in one of the memory settings to put at 2...or 2T). I also would be cautious with your memory timing. While the FSB for the processor is at 1600MHz you don't want your memory at that...haha. If you have 800MHz memory...I wouldn't go over 1000MHz until you have your system stable and know it can handle it.
