On 20 Nov 2007 at 12:51, Alexis wrote: > You might run into an issue of minimum clock speed too. I don't know what > the minimum for the 386/486 is. I know RISC microcontrollers can go down to > DC, but the 8386/486 might not. Well, there's clock speed and then there's "apparent clock speed". Let's see, a 16MHz 80386sx is equivalent to what, a 10MHz 80286? Cheers, Chuck