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last-name
Joined: 09 Mar 2012
Posts: 123
Location: GD China
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 Posted: Tue Sep 04, 2012 1:12 pm Post subject: I collected the I960 (PGA) |
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I collected the I960  |
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Tegranphos
Joined: 04 Oct 2009
Posts: 806
Location: Navarra - Spain
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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Robev
Joined: 10 Mar 2006
Posts: 3693
Location: New Zealand
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| Posted: Tue Sep 04, 2012 3:05 pm Post subject: |
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Very Nice Collection but looks like you need these as well.
PM me if interested
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Tue Sep 04, 2012 3:51 pm Post subject: |
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When you finish with i960, go back and get i860 
Yes, the board is for sale, but I'll probably get more for scrap value. I have the others from the same server. |
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Robev
Joined: 10 Mar 2006
Posts: 3693
Location: New Zealand
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| Posted: Tue Sep 04, 2012 3:54 pm Post subject: |
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A pity they are not socketed JAC 
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Tue Sep 04, 2012 4:26 pm Post subject: |
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| Robev wrote: | | A pity they are not socketed JAC |
err....
yes, they are all in sockets.
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Robev
Joined: 10 Mar 2006
Posts: 3693
Location: New Zealand
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| Posted: Tue Sep 04, 2012 4:33 pm Post subject: |
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| JAC wrote: | | Robev wrote: | | A pity they are not socketed JAC |
err....
yes, they are all in sockets.
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oops my mistake, just from the top view like you show it looks like they are soldered on 
Nice Board BTW
What is the Chip in the middle with the Heatsink 
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Last edited by Robev on Tue Sep 04, 2012 4:38 pm; edited 1 time in total |
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Tue Sep 04, 2012 4:37 pm Post subject: |
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| Look the middle picture (LSI) has gold on the top part of the ceramic... quick, let me list it for $1,000,000. |
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yk
Joined: 17 Oct 2011
Posts: 539
Location: CN
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| Posted: Wed Sep 05, 2012 12:12 am Post subject: |
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| Very Nice, need a MC, and 80959 |
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last-name
Joined: 09 Mar 2012
Posts: 123
Location: GD China
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| Posted: Wed Sep 05, 2012 10:03 am Post subject: |
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| CPUShack wrote: | Doing quite well.
Need a MC, SA/SB and some Rx ones and you are good to go  |
These difficult to find |
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mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
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| Posted: Wed Sep 05, 2012 11:34 am Post subject: |
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| I have several flavors of the i960. PGA, BGA, QFP, PLCC. I have a couple i860's but they're harder to come by. |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Wed Sep 05, 2012 12:17 pm Post subject: |
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| last-name wrote: | | CPUShack wrote: | Doing quite well.
Need a MC, SA/SB and some Rx ones and you are good to go |
These difficult to find |
Neon_WA may have some extra JC and JD models you could get
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UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
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| Posted: Wed Sep 05, 2012 12:29 pm Post subject: |
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Hi,
the SGI board belongs to the Reality Engine 2 graphics processor used in the very high-end graphics machine Onyx: it's the Geometry Engine GE-10. It was very powerful (and of course expensive) for its time (1991/2). Sadly the i860XP never performed as well as expected by Intel, so the max floating point power was "limited" to 370/380 MFLOPS. The card was rated by SGI at 450 MFLOPS in single precision. The card is a SIMD (Single Instruction, Multiple Data) engine designed to perform 3D geometry calculations. I see You have the **uncommon** and very nice version with ceramic VLSI Memory Interface chips (one for each i860XP): the "usual" version with plastic PGA is visibile in this page of my website: http://ummr.altervista.org/i860.htm. The architecture is described in this article (referred to the original Reality Engine, with only 8 i860 CPUs): http://www1.cs.columbia.edu/~ravir/6160/papers/p109-akeley.pdf. Your board is a true eye-candy! I hope You'll find a collector interested.
Paolo |
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