trouble, we start with incorrect point. Damn to the Abit, there engineer can not make the lock work perfectly, so when we are exceeding the 266MHz fsb the biggest ration of 8:2:1 can not make the AGP stay at 66MHz, but I know the chipset is still trying to make it work at 66Mhz again and again until the system hang and we have to reboot it. So unlucky. :-(