My computer is built on an ABIT KT7A VIA 133A MoBo that has 266 FSB. My AMD T-Bird 1GB also supports 266 FSB. It is embarrising how little I know about this. I have never had good performance with this system. Lots of lock-ups and blue screens. I recently installed SiSoft Sandra. It showed that I had a AMD 750 MHz and was running 200 MHz FSB. What would make my CPU show to be 750 MHz? Would running at 200 MHZ FSB make my CPU show as 750 MHz? I fear that the last tech. may have swapped CPUs. Can some one walk me through setting my FSB at 266 MHZ? I am just as ignorant about all of this as I sound. Help!