I bought a used abit motherboard, trying to use a sempron 2200 processor. I have had various problems trying to set is motherboard up with other processors. So if I'm going to go to steps all want to use the sempron.It has a 1500mhz 333fsb rateing. In the motherboard bios you can manually set up the clock speed and multiplier. You can also set up the voltage input. But no matter what I do when the post screen comes up it shows Athlon 960 recognizes memory and under that memory clock speed DDR200 in dark bold type.also I am using 256 ddr 333 elixir(1 stick) memory. I can use all the help I can get to get this system up and running. Thank you John R.