[rescue] RE: VSIMMs in SS/20 ("one VSIMM good, two VSIMMs better" - sorry George Orwell)

[rescue at sunhelp.org]

On Mon, 2 Jul 2001, Al Potter wrote:

> james at foonly.com said:
> > FYI, MemoryX has a great deal on SS10/SS20 presto NVSIMMs:
>
>
> Is there any difference performance or otherwise, between these and the Sbus
> prestoserve cards?

Yes.  The SIMMs have more NVRAM (2MB vs 1MB in the Sbus cards), greater
bandwidth, lower latency, and they don't load the Sbus down while
transferring data.  You can also use 2 NVSIMMs in a Sparc 10 or 20 for 4MB
of NVRAM.

The disadvantage, of course, is that they're only usable in the Sparc 10
and 20 (and the SS1000/SC2000 for their 1MB presto SIMMs).

-James