[rescue] Sgi Indigo 2 hardware questions

[Gerhard Lenerz]

Hello Curtis,

Wednesday, March 12, 2003, 7:04:14 AM, you wrote:

>>I've never seen or heard of such an option on an Indigo2.  I suppose
>>that doesn't mean that it doesn't exist, but it's probably quite rare.
>
> I wish I could find someone who knew if this was true or not and how
> to identify the ones with ultra scsi if they existed.

  if you have IRIX installed you could see what hinv lists as
  controller. I think it's "WD33C93B Revision D" for all Indigo 2 and
  Challenge M.

>>Well, hinv will tell you.  But, to determine it from the board itself,
>>you need to go by the ASSY #:
>
> I thought the IP22/26/28 listed by hinv was representative of the processor.

  Somehow, yes. On the Indigo 2 the various processors require
  different mainboards.

> I thought that the processor module could be changed, that a R10K module
> could be installed into a system that had an R4K.  If I understand you
> correctly, the mainboards and modules can not be interchanged.

  Yes.

> If that is the case, then the max upgrade within any board would be
> the highest speed/highest cache size module made in that processor
> type ?

  IP22: 250MHz R4400
  IP26: 75MHz R8000
  IP28: 195MHz R10000


  

Gerhard