Q: I am using AMD FSB 200Mhz CPU on K7VT4A PRO, I cannot set my DDR333/ DDR400 memory to DDR333/ DDR400 under BIOS setting. Why?(6/23/2005) A: For K7VT4A PRO, if you are running with FSB 200 MHz CPU, DDR SDRAM supports 266Mhz only. So you are not able to change the memory speed under BIOS setting.