The sources were:
SGI Origin 350 Server System User's Guide
SGI Onyx 350 Visualization System User's Guide
Silicon Graphics Tezro Visual Workstation Hardware User's Guide: Rackmount Configuration
As far as I understand there are basically these "basic" (router, PCI Expansion, TP900, power are "special") modules:
Code: Select all
CPU Memory GFX PCI IO
Base IP Graphics and Compute Module + + + + +
Base Compute Module + + o + +
IP Graphics and Compute Module + + + + o/serial
Compute Module + + o + o/serial
MPX Module o? + o? + o/serial?
Tezro Workstation Expansion Enclosure o + + + o/serial
The first four are obvious: these are the Compute Modules with or without installed V12 and with the IO9 serial daughter card or not. The first one (Base IP Graphics and Compute Module) is also identical to the base rackmount Tezro module, unless it's a 4x1 GHz Tezro, where it becomes just the "Base compute module". The last two are a bit more interesting.
The MPX module allows to add more memory and PCI cards. Now the questions are:
-Is this basically basically a compute module with a 0 CPU nodeboard (with memory connected via the Bedrock ASIC but without any CPUs)? I assume the Interface board is the same and so is the PCI Rise Card. There is probably no reason for it to contain a SCSI Backplane Board.
-If yes, can the MPX module be upgraded to a full compute module by replacing the IP53 nodeboard? They are still calling the MPX nodeboard the IP53 nodeboard.
The rackmount Tezro Workstation Expansion Enclosure is even more interesting:
-Since there were 2x2 CPU Tezros sold (with one 2 CPU IP35 nodeboard in each enclosure), is it possible to ugrade the Tezro to 2x4 (not 1 GHz) CPU boards?
-If not, is it a hardware or software limitation? Is it possible to hack the Tezro into a 2x4 CPU Onyx 350?