400Mhz Processor Support in SPARCstation 20

http://sunsolve.sun.com/data/802/802...02-5936-15.pdf

"The SPARCstation 20 system can now support a 400-MHz CPU if the
motherboard is
part number 501-3132-13 or higher."

;/)

Bart wrote:
> http://sunsolve.sun.com/data/802/802...02-5936-15.pdf
>
> "The SPARCstation 20 system can now support a 400-MHz CPU if the
> motherboard is
> part number 501-3132-13 or higher."
>
> ;/)


As far as I was aware, there was nothing faster than the 200 MHz
hypersparc processors for that machine.

I never even heard of a 400 MHz processor for a Sun SparcStation 20.
(Ive had a few SS20's myself).

It could be a mis-print, or it could mean a pair of 200MHz chips, but i
doubt there was a 400 MHz processor for them.




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On Jul 23, 7:01*am, Dave <f...@coo.com> wrote:
> Bart wrote:
> >http://sunsolve.sun.com/data/802/802...02-5936-15.pdf
>
> > "The SPARCstation 20 system can now support a 400-MHz CPU if the
> > motherboard is
> > part number 501-3132-13 or higher."
>
> > ;/)
>
> As far as I was aware, there was nothing faster than the 200 MHz
> hypersparc processors for that machine.
>
> I never even heard of a 400 MHz processor for a Sun SparcStation 20.
> (Ive had a few SS20's myself).
>
> It could be a mis-print, or it could mean a pair of 200MHz chips, but i
> doubt there was a 400 MHz processor for them.
>
> --
> I respectfully request that this message is not archived by companies as
> unscrupulous as 'Experts Exchange' . In case you are unaware,
> 'Experts Exchange' *take questions posted on the web and try to find
> idiots stupid enough to pay for the answers, which were posted freely
> by others. They are leeches.

Yeah, it's a misprint. Guess that one slipped by the technical q/a ;P

On 2009-07-23, Bart <> wrote:
> http://sunsolve.sun.com/data/802/802...02-5936-15.pdf
>
> "The SPARCstation 20 system can now support a 400-MHz CPU if the
> motherboard is
> part number 501-3132-13 or higher."

That is a strange document, as half the time it appears to be
referring to the Ultra-2 machines instead of the SS-20 -- including the
description of installing and removing a creator-3D UPA interface
framebuffer.

The Ultra-2 has only Sbus and Mbus slots (the latter for the
CPUs), and no UPA slots.

And the board number above shows as an Ultra-2 in the FEH. It
has one UPA slot for the framebuffer, four Sbus slots, and two
(different) UPA slots for the CPUs.

So -- it seems that someone got confused, or someone uploaded a
merged (doctored) document to their site as a joke.

Enjoy,
DoN.

--
Email: <> | Voice (all times): (703) 938-4564
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--- Black Holes are where God is dividing by zero ---

DoN. Nichols wrote:
> On 2009-07-23, Bart <> wrote:
> > http://sunsolve.sun.com/data/802/802...02-5936-15.pdf
> >
> > "The SPARCstation 20 system can now support a 400-MHz CPU if the
> > motherboard is part number 501-3132-13 or higher."
>
> That is a strange document, as half the time it appears to be
> referring to the Ultra-2 machines instead of the SS-20 -- including the
> description of installing and removing a creator-3D UPA interface
> framebuffer.
>
> The Ultra-2 has only Sbus and Mbus slots (the latter for the
> CPUs), and no UPA slots.
>
> And the board number above shows as an Ultra-2 in the FEH. It
> has one UPA slot for the framebuffer, four Sbus slots, and two
> (different) UPA slots for the CPUs.
>
> So -- it seems that someone got confused, or someone uploaded a
> merged (doctored) document to their site as a joke.

Could it be that this board was an upgrade option to convert a
4m Sparc-20 to a 4u Ultra-2 reusing the 20's case, PS, disks, etc?
I.o.w., an Ultra-2 board that mechanically fits into a Sparc-20 case?

--

"I'm a doctor, not a mechanic." Dr Leonard McCoy <>
"I'm a mechanic, not a doctor." Volker Borchert <>

On 2009-07-23, Volker Borchert <> wrote:
> DoN. Nichols wrote:
>> On 2009-07-23, Bart <> wrote:
>> > http://sunsolve.sun.com/data/802/802...02-5936-15.pdf
>> >
>> > "The SPARCstation 20 system can now support a 400-MHz CPU if the
>> > motherboard is part number 501-3132-13 or higher."
>>
>> That is a strange document, as half the time it appears to be
>> referring to the Ultra-2 machines instead of the SS-20 -- including the
>> description of installing and removing a creator-3D UPA interface
>> framebuffer.
>>
>> The Ultra-2 has only Sbus and Mbus slots (the latter for the
>> CPUs), and no UPA slots.
>>
>> And the board number above shows as an Ultra-2 in the FEH. It
>> has one UPA slot for the framebuffer, four Sbus slots, and two
>> (different) UPA slots for the CPUs.
>>
>> So -- it seems that someone got confused, or someone uploaded a
>> merged (doctored) document to their site as a joke.
>
> Could it be that this board was an upgrade option to convert a
> 4m Sparc-20 to a 4u Ultra-2 reusing the 20's case, PS, disks, etc?
> I.o.w., an Ultra-2 board that mechanically fits into a Sparc-20 case?

Not based on the drawings in the FEH. Very different form
factor. And the FEH shows the board in question as explicitly for the
Ultra-2, the Netra and Netra NFS.

The board in question has two 80-pin SCA SCSI connectors on the
edge to accept drives plugged in through special guides in the chassis,
plus a 68-pin SCSI connector on the back of the system.

The standard SS-20 board has a SCSI connector and a floppy
connector right by the power connector, and a 50-pin SCSI connector on
the back of the system.

If you have the FEH (Field Engineer's Handbook), look at the
drawings for the 501-3132 system board for the Ultra 2 (There is an
earlier board for the Ultra-2 with the same format, but not as fast
apparently) and the drawings for the SS-20's 501-2324, 501-2924, and
501-2961.

If you don't have the FEH, look at the Australian site which has
it on-line.

Ultra-2:
http://www.sunshack.org/data/sh/2.1/...tra2.html#3132

SS-20:
http://www.sunshack.org/data/sh/2.1/...tation_20.html

Enjoy,
DoN.

--
Email: <> | Voice (all times): (703) 938-4564
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DoN. Nichols wrote:
> If you don't have the FEH, look at the Australian site which has
> it on-line.

Didn't know about that, will have a look at it sometime.

> Enjoy,

Hopefully so,

VB

--

"I'm a doctor, not a mechanic." Dr Leonard McCoy <>
"I'm a mechanic, not a doctor." Volker Borchert <>