Okay I purchased a cheapy Soltek Qbic with a Sempron 3100+ in it. I bought this comp just to play around with it. I had the FSB sitting @ 230mhz, and when I try to make the substantial bump to 245, it freezes on reboot - before i can get to bios and change it back. (which means i have to open it up to clear cmos) I tried giving it a small voltage jump from 1.4v to 1.45v to get the same result. It's not running over 50º C.. what would cause this? The ram is generic, a 1gb stick of pc3200 -> but it runs @ cas2.5.. ideas?