I want to overclock my pc from 200 on the FSB to 245 (which I know I can do because I've done it in the past). The problem is this. In order to do this, I have to turn down my max memclock to 166 and change the HT Frequency from 5x to 4x. However, every time I go to change my HT Frequency from 5x to 4x, the computer locks up. This happens right after I click to change HT Frequency. The new choices don't even display. A blank screen with HT Frequency comes up, then the computer locks up and I am forced to restart. Does anybody have any ideas at all as to what is causing this??? I have recently reset the bios by moving the jumper, but I did it properly and put the jumper back while the computer was still off. Then I reinstalled all of the drivers and updated the bios, and I am still having this problem. I would really appreciate it if somebody could help me with this problem!