[rescue] SS10 / SS20 Memory and SS10 or SS20 Clone?

Curtis H. Wilbar Jr. rescue at hawkmountain.net
Fri Jul 18 15:44:03 CDT 2003

>From: adh at an.bradford.ma.us (Sandwich Maker)
>"From: Jochen Kunz <jkunz at unixag-kl.fh-kl.de>
>"On 2003.07.18 01:13 Curtis H. Wilbar Jr. wrote:
>"> Sounds like an SS20 clone that uses the Sun Microelectronics
>"> SparcEngine 20 mainboard (which looks like an upgraded SS10 design
>"> mainboard).
>makes me wonder if the 'se20' is actually a ss10sx main board.

Nope.  No Sun system used a SparcEngine 20 mainboard.  Only SS20 clones
(and maybe not all of those) and embedded systmes (possibly) use the
SparcEngine 20 mainboard.

>"Hmm. Can't find anything on sunsolve about the SparcEngine...
>probably because it's industrial oem and long out of support.  i
>looked for the ultra-20 - yes, there was one, essentially a u1 non-e
>but with u2-style plug-in cpu, all in a ss20-shape board - but no
>the u20 was intended to replace the se20 in embedded industrial apps,
>but it also fits aurora chassis...  making it the smallest ultra?

Cool... know where to find any :-) ?

>"> It has the 50MHZ mbus speed (although I can't seem to
>"> get mine to do it), and supports SS20 VSIMMS
>"How can I determine if the MBUS is running at 40 MHz or 50 MHz? But with
>"that 40 MHz oscillator near the MBUS controller it looks more like a
>on a real ss20, there's a 40/50 jumper.
>"BTW: What is the main difference from SS10 to SS20? Only MBUS and RAM
>functionally.  the 20 [and 10sx] also has some redesigned chips.
>Andrew Hay                                  the genius nature
>internet rambler                            is to see what all have seen
>adh at an.bradford.ma.us                       and think what none thought
>rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

-- Curt

Curtis Wilbar
Hawk Mountain Networks
rescue at hawkmountain.net

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