New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

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Byrd
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New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

Unread postby Byrd » Sat Mar 11, 2017 3:56 am

Hi all,

I was here on the forums a while back, having picked up several SGI O2s in various guises - they weren't my cup of tea (having been put in storage for years they were highly fragile), these were provided to another collector.

I still had the SGI itch, and a friend gave me 2 x Octanes today, ex-academic machines. One was used up until only recently to control a microsope (the newer logo and in great condition) and the other was saved from e-waste (rusty, old logo).

- The clean Octane looks bone stock (and reportedly boots), with the SE graphics board and the second revision motherboard. It has a single TMEZZ TRAM module installed on the SE board. EDIT: single 270Mhz CPU

- The rough Octane has been upgraded with dual CPUs, PCI cage, tape drive and both MXE graphics board + SE graphics board, no TMEZZ TRAM modules. It has the older revision motherboard. EDIT: dual 300Mhz CPUs, can't tell exact part yet (label missing)

As you can guess, I intend to build up one good unit and my first question is - can that TMEZZ TRAM board be installed singularly to the MXE board, or should I put it on the SE graphics board?

Thanks

JB

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Geoman
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Re: New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

Unread postby Geoman » Sat Mar 11, 2017 7:36 am

Congratulations for your Octanes and welcome to the pack!

I've got myself an SE+T Octane, and it's a fine machine. All the textured stuff like demos, Mekton etc runs perfectly fine.

For SSI or SSE you will need 2 Mezzanine-Modules. They don't work with only one module.
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Re: New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

Unread postby Krokodil » Sat Mar 11, 2017 1:21 pm

Welcome to the Octane owners club. Sounds like you could have yourself a decent Octane there.

If you do buy any TRAM modules for your MXE make sure they are the correct type for your board. I think in this case you'll need SGI PN 030-1263-002
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Byrd
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Re: New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

Unread postby Byrd » Sat Mar 11, 2017 4:54 pm

Thanks all for the advice and welcome :)

Looks like I'll be adding dual graphics boards, one the stock MXE and the other the SE with TRAM module installed. Should be able to get a good example up and running. I'm assuming the older Octane with (what I assume is) dual R12K 300Mhz CPUs will be a straight swap into the later revision board?

JB

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Re: New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

Unread postby Krokodil » Sat Mar 11, 2017 5:26 pm

Byrd wrote:Thanks all for the advice and welcome :)

Looks like I'll be adding dual graphics boards, one the stock MXE and the other the SE with TRAM module installed. Should be able to get a good example up and running. I'm assuming the older Octane with (what I assume is) dual R12K 300Mhz CPUs will be a straight swap into the later revision board?

JB


Yes, should be a simple swap of the dual CPU onto the other board.
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Re: New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

Unread postby smj » Sun Mar 12, 2017 4:24 pm

Welcome and congrats. Be careful of the compression connectors on the XIO cards. Do read and follow the precautions scattered throughout the wiki and forums.

Preference to an 030-1467 system board if there's a choice - it's newer, can take faster CPUs and larger RAM modules.

Be careful about putting an XIO module in position D - that'll cause an Octane to run in "fastfan" mode. If you haven't experienced that particular joy...
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Byrd
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Re: New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

Unread postby Byrd » Tue Mar 21, 2017 3:59 am

Hi again,

I've spent some time cleaning and restoring one "good" Octane, which currently sits at the later Revision D 030-1467 based unit, MXE + SE dual graphics boards, 1.5GB RAM in total, 18GB HD, tape drive and PCI card cage (with some sort of NIC/PS2 mouse + keyboard card in it).

The Dual 300Mhz CPU board does not work in either Octane - the PSU powers up but with no light bar activity. It leaves me with the stock 270Mhz CPU and it's booting smoothly. I'll no doubt get the itch and upgrade the CPUs soon.

Are the MIPS CPUs prone to flaking out, are there any other tips on troubleshooting the dual 300 CPU? I've cleaned the contacts with electronic contact cleaner spray, the VRMs either side of the heatsink look OK.

JB

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Re: New haul: 2 x Octanes, Q about TMEZZ TRAM module upgrades

Unread postby robespierre » Tue Mar 21, 2017 5:57 am

That PCI card is called the CadDuo, it allowed two simultaneous users.
The processor module could have a bent connector or socket, as I recall the wider dual-CPU ones were under more mechanical stress.
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