Fuel prototype (BLUE!)

A place to post hardware inventories.
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Please post your 'hinv' in the following format:

Topic: Kind of machine (O2, Octane, Tezro, Onyx2, etc.), CPU (R10k 250MHz, R12k 300MHz, R16k 1GHz, etc.), RAM, graphics option (Example: Tezro V12 4xR16K 700MHz 4GB)

Body: output of hinv -v (hinv -vm if possible) and /usr/gfx/gfxinfo.

Please wrap the output in BBCode "code" blocks to improve legibility.
hamei
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Re: Fuel prototype (BLUE!)

Unread postby hamei » Wed Mar 04, 2009 8:14 am

jan-jaap wrote:Notice how the secondary SCSI channel is wired

I'm wondering if one could solder a more conventional scsi connector to those pads ? The one SGI used is very difficult to find ...

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Re: Fuel prototype (BLUE!)

Unread postby mapesdhs » Wed Mar 04, 2009 9:27 am

hamei wrote:... The one SGI used is very difficult to find ...


It's a total PITA. If the cable dies (which can happen), finding a replacement is tricky.

Ian.

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recondas
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Possible alternative to the Fuel's internal SCSI cable

Unread postby recondas » Wed Mar 04, 2009 11:18 am

hamei wrote:
jan-jaap wrote:Notice how the secondary SCSI channel is wired

I'm wondering if one could solder a more conventional scsi connector to those pads ? The one SGI used is very difficult to find ...

There might be other alternatives to soldering. I've got a two-drop SCSI cable out of an IBM server that has what appears to be the same connector on one end <the other two connectors are the the standard 68-pin internal SCSI type>. The fuel-type end connected to the three drive hot-swap SCSI backplane in an IBM xSeries server. The FRU on the cable is 06P5849 - I googled up a few references, including this one on IBM's site <scroll down to the 'cable' section>: http://www-947.ibm.com/systems/support/ ... nd=5000020 That document is for an xSeries 205 - the ones I had <I think I've still got one or two in storage> were xSeries 220s, so the part might be used in more than one application <*and* be at least slightly more common than the Fuel part>.

The connector on the IBM backplane uses clips to secure the cable connection, but that shouldn't affect the connector on the cable. Here's a photo of the connector on the IBM backplane for comparison to the connector in jan-jaap's photo:
IBM SCSI Backplane.JPG
and here's a shot of either end of the IBM cable <it's 25.5 inches long>:
IBM SCSI Cable.jpg
hamei - here's the same cable on taobao.com <for 20 RMB? my Chinese isn't functional, but that's about 3 bux ain't it?>: http://item.taobao.com/auction/item_det ... html?pm1=2

and it looks like one <along with a SCSI controller> sold on French eBay.be for 7.50 euros: http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... %26fvi%3D1
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mapesdhs
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Re: Fuel prototype (BLUE!)

Unread postby mapesdhs » Wed Mar 04, 2009 12:46 pm

Hmm, reminds me of the connectors on the Indigo2 SCSI backplane, but surely they can't be the same, that would be too easy...

Ian.

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Re: Fuel prototype (BLUE!)

Unread postby dc_v01 » Wed Mar 04, 2009 1:36 pm

It's fairly straightforward to make cables like this, the connectors are IDC - Insulation Displacement - you just clamp the connector over the ribbon cable and it makes all the connections itself. But figure at least $7.00 per connector, plus the ribbon costs, so it's not usually cheap. I used to make my own custom SCSI cables just to get the lengths/connector spacing right.

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Re: Fuel prototype (BLUE!)

Unread postby recondas » Wed Mar 04, 2009 2:16 pm

dc_v01 wrote:It's fairly straightforward to make cables like this, the connectors are IDC - Insulation Displacement - you just clamp the connector over the ribbon cable and it makes all the connections itself.
What makes then somewhat difficult to source is the planar end of the Fuel cable uses the relatively uncommon female 68-pin micro-centronics connector. It should be available in IDC format <SGI and IBM had to get them somewhere>. Do you have a source that offers low-volume purchases?
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japes
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Re: Fuel prototype (BLUE!)

Unread postby japes » Wed Mar 04, 2009 5:13 pm

http://search.digikey.com/scripts/DkSea ... =A97696-ND

Isn't this it? ~$6, hundreds of them in stock.
:O3000: :Fuel: :Tezro: :Octane2: :Octane: :Indigo: :Indigo: :Indigo: :O2: :1600SW: :Indigo2: :Indigo2: :Indigo2: :Indigo2IMP: :Indigo2IMP: :Indy: :Indy: <--challenge S

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Re: Fuel prototype (BLUE!)

Unread postby recondas » Wed Mar 04, 2009 6:17 pm

That looks like the one. Thanks!
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Re: Possible alternative to the Fuel's internal SCSI cable

Unread postby hamei » Wed Mar 04, 2009 6:50 pm

recondas wrote:hamei - here's the same cable on taobao.com <for 20 RMB? my Chinese isn't functional, but that's about 3 bux ain't it?>:

Very kewl, wreck ! I don't even have to go that far, have an x350 about eight feet away :D

Being able to make them ourselves sounds even better tho. I always hate the clutter of a standard cable inside the computer. A nice short cable with three connectors and a terminator would be great.

So much for the stock SGI $ 500 cable :shock:

unixmuseum
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Re: Fuel prototype (BLUE!)

Unread postby unixmuseum » Wed Mar 04, 2009 7:05 pm

hamei wrote:I would expect that they have loaners which they send out so they don't have to dip into the retail stock. That's just a guess tho.
That's exactly how that works, yes. I received a naked Tezro once, the thing looks like a big pile of sheetmetal without the skins on (arguably, it is :lol: )

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guardian452
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Re: Fuel prototype (BLUE!)

Unread postby guardian452 » Wed Mar 04, 2009 7:11 pm

unixmuseum wrote:
hamei wrote:I would expect that they have loaners which they send out so they don't have to dip into the retail stock. That's just a guess tho.
That's exactly how that works, yes. I received a naked Tezro once, the thing looks like a big pile of sheetmetal without the skins on (arguably, it is :lol: )


:P Yes, while we all love to say how sexy the sgi hardware is, they are much more attractive in their plastic suits than bare-assed naked :roll:

IMO, of course.

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Dr. Dave
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Re: Fuel prototype (BLUE!)

Unread postby Dr. Dave » Wed Mar 04, 2009 9:54 pm

Depends on if you're a robot or not...
:O3000: <> :O3000: :O2000: :Tezro: :Fuel: x2+ :Octane2: :Octane: x3 :1600SW: x2 :O2: x2+ :Indigo2IMP: :Indigo2: x2 :Indigo: x3 :Indy: x2+

Once you step up to the big iron, you learn all about physics, electrical standards, and first aid - usually all in the same day

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mapesdhs
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Re: Fuel prototype (BLUE!)

Unread postby mapesdhs » Thu Mar 05, 2009 2:52 am

sybrfreq wrote: :P Yes, while we all love to say how sexy the sgi hardware is, they are much more attractive in their plastic suits than bare-assed naked :roll:

IMO, of course.


Hehe, how that contrasts with a typical beach babe. :D

Ian.

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jan-jaap
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Re: Fuel prototype (BLUE!)

Unread postby jan-jaap » Thu Mar 05, 2009 3:33 am

The party piece of the Fuel:
turbo-air.jpg


Turbo Air!
Now this is a deep dark secret, so everybody keep it quiet :)
It turns out that when reset, the WD33C93 defaults to a SCSI ID of 0, and it was simpler to leave it that way... -- Dave Olson, in comp.sys.sgi

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Re: Fuel prototype (BLUE!)

Unread postby sgtprobe » Thu Mar 05, 2009 7:35 am

jan-jaap wrote:The party piece of the Fuel:


Turbo Air!


:lol:

Sweet stuff

/Jonas
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