Re: Anyone have working pre-v8 machines?

Le mar. 5 avr. 2022 à 20:39, Martin Husemann <[email protected]> a écrit :
> On Tue, Apr 05, 2022 at 08:20:50PM +0200, Romain Dolbeau wrote:
> >  I've successfully run it on a SS20 with a pair of SM100 (so 4 v7 CPUs)
> I didn't know that could work hardware wise.

It was never officially supported by Sun (the SM100 modules were only
supported in the 600MP, including pair of them, which is a nice vintage
configuration), but it does work in practice - both the host and the module
are sufficiently MBus Level 2 compliant to work nicely together, and for
some reason (probably "didn't remove it from the know-working code in the
600MP") the PROM supports the modules...

I tried NetBSD 9.0 on the config just to see if the software would actually
work as well... and it did :-) (probably also for compatibility with the
600MP?). Performance-wise, it doesn't make any sense though, in particular
as I luckily do own a pair of SM512 should I need a quad-CPU SS20. But
those run way too hot for my peace of mind... (and work fine with NetBSD as
well!).

Cordially,

-- 
Romain Dolbeau