[rescue] Sgi Indigo 2 hardware questions

[Curtis H. Wilbar Jr.]

>Date: Tue, 11 Mar 2003 21:31:08 -0600
>From: "Jonathan C. Patschke" <jp at celestrion.net>
>To: The Rescue List <rescue at sunhelp.org>
>Subject: Re: [rescue] Sgi Indigo 2 hardware questions
>
>On Tue, 11 Mar 2003, Curtis H. Wilbar Jr. wrote:
>
>> I've heard that some of the later Indigo 2 systems had ultra scsi
>> (20MB/s narrow vs the fast scsi 10MB/s narrow).  Does anyone know how
>> to determine from hinv which controller this has... only thing I've
>> found out is WD33C93B.
>
>They're all fast/narrow.  I can't exactly remember, but the Challenge M
>(Basically an Indigo2 with some minor hardware modifications) might have
>had ultra SCSI.

I've found two web pages that indicate later Indigo 2's had Ultra SCSI...
but no details as to how to determine it, and nothing to confirm/rebuke
what they say.

>
>> Does anyone know if this audio board is the same on all Indigo 2 systems
>> (teal and purple) ???
>
>It is.  Or, at least, they're all compatible.  There might be different
>revisions, but they're interchangeable.

cool.

>
>> Also, I assume the Teal systems can take a 10000 cpu if you have the newer
>> power supply.
>
>ONLY if the system board is an IP28.  An IP22 can only take R4xxx CPUs.
>An IP26 can only take R8000 CPUs, and an IP28 can only take R10000 CPUs.

Are the mainboards labelled with IP22/26/28, or do you have to go by
the SGI ASSY # to determine this.  I have enough Indigo 2's that I'd
like to know how many are 10000 capable.

>
>> I guess this leads to the question if Teal and Purple Indigo 2
>> motherboards are identical other than possibly ROM version ???
>
>Assuming they're based around the same CPU, yes.  Again, there were
>different revisions, but they're functionally almost identical.
>
>-- 
>Jonathan Patschke  *)  "They're like candy for your ass."
>Thorndale, TX      (*                       --Doc Shipley
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-- Curt