No matter what I do, I can't get this ga7vaxp to run on 166 external clock! All you have to do is have pc2700 ram in there, and switch the sw1 switch so its at 166 fsb. After that it should post and then you go into the bios and set the ram speed. Cept it will not post. The ram is a 512mb stick of winbond bh-6 chips. The pcb is painted silver and it has a life time warranty. Symbols look like its a Delta and Ohms. (whatever company that is.. winbond?) The system will only run at 133mhz.