[Sunhelp] SS20 memory questions..

[james]

On Sat, 11 Dec 1999, Bill Bradford wrote:

> Nope - you can only safely do SMP if both processors are the -1 versions;
> e.g., a SM51 and a SM71 would work together, but probably not WELL - you
> should only mix CPUs that are close to the same speed (e.g., sm51/sm61, 
> sm61/sm71, sm41/51, etc).  You would probably run into bus speed problems
> trying to run a '51 and a '71 together anyway.

Avoid mixing SuperSPARC-I (SM41/51/61) with SuperSPARC-II (SM71/81).

> You cant do SMP (most of the time) with the non-SuperCache CPUs (SM40/50).

All SM50's can do SMP, this was one of the selling points of the
entry-level SS20.  Some SM40's can do SMP, no SM20's or SM30's can.

-James