1xx Opterons are 939 pin and 2xx and up are 940pin server chips
Thanks, but that doesn't answer my question. 800 series are 940 sockets as well--the diff between 100 and 200 is "1 way" vs. "2-way". My question is what does that mean? Is it like designed for use in dual-cpu systems verses single cpu vs. 8 cpu? Does a single 145 benchmark faster than a single 245?