I am using a 2.4C along with an abit IS7-E. Cpu can probably go to 3.4 and up on default vcore. See, the problem is the last spare sticks of ddr ram I have are two unidentical ddr 333 256mb sticks (1x unofficial samsung and 1x infineon). They are both double sided sticks. They are able to run in dual channel mode, but when overclocked to around 360mhz or higher, system is not so stable. I have been able to get higher cpu speeds by using this ram in single channel mode. I also did a 3dmark2k1 test, and I lost only about 500 points going from DC to SC mode, which is nearly a 2500MB/S difference in bandwith. System only has a geforce 3 ti used for light gaming. Should I stick with SC mode and get more cpu speed and save money? I do have 4 identical official samsung ddr sticks that I know can hit dual channel 400mhz, but they are used in my nforce 2 systems, which are me and my bro mainly use for gaming and general use.