[hamei]

Can someone please publish the technique to perform this.  I know it has to do with setting speed and timings in the L1...but no idea what commands to use.  We need this info published somewhere due to Fuels becoming more and more "parts" machines.  Switching CPUs will become a much bigger deal.

As I remember, you can't.  The machine has to get through POST to get to where you can change the cpu speed, but if it is set too high, it won't. It's a case of "you can't get there from here."

The only way I was ever able to do this was stick a faster cpu in, set the speed down, then swap in the slower one. It's a one-way street.