CPU Shack: Rare IBM Cobra MCM stuff - Offers Accepted

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CPUShack



Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA

PostPosted: Tue Feb 25, 2025 5:02 pm    Post subject: CPU Shack: Rare IBM Cobra MCM stuff - Offers Accepted Reply with quote

These all came from IBMs Rochester research facility, this is the facility that developed and built the AS/400 computer around this time period (early 1990s)
I got these with some rare COBRA LITE samples.
Cobra was the first RS64 CPU (RS64 aka PowerPC-AS is a more advanced PowerPC CPU that was 64-bit from day one)

The first Cobra was released in 1995, these are from 1994 and earlier

The MCMs are unknown, but appear to be a Cobra based MCM for AS/400 that got canceled (Cobra was original going to slot into everything from the low end to the very high end, so it makes sense.)

That being said, they are unknown, so no guarantee what exactly they are yet.

SOLDx Large 15 die MCM, 5x CPU + 10x cache? (comes with original ceramic lid) $175
SOLDx Large 15 die MCM with only 2 dies, rough shape, corner broke on back side $45
SOLDx Large MCM with no dies, very clean shape $75

SOLDx Quad die MCM 22F0852 No lid or HS damaged dies $35
1x Quad die MCM 22F0852 Complete $70
SOLDx Quad Die MCM 22F0852 Complete (Heatsink separated) $70
SOLD OUTx large white PGA $13

1x Single die MCM, different package then the rest unknown $35

SOLDx MSA 4026 Chipset on test jig $15
SOLDx MSA 4160 chopped corner $6
SOLDx ASTRO $10
2x 87G4002 Unknown $6
SOLDx COBRA LITE Engineering sample dated 2 16 1994 $120
SOLD OUTx CALYPSO chipset $10
SOLD OUTx BANDIT chipset $10
SOLDx CMOS 92X6516 IBM ROCH EXPERIMENTAL ONLY $25

SOLD OUTx Unknown White chips (like chipset ASTRO MSA etc) $6


Last edited by CPUShack on Sun Mar 02, 2025 6:16 pm; edited 5 times in total
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aberco



Joined: 05 Sep 2013
Posts: 2655
Location: Paris France

PostPosted: Tue Feb 25, 2025 5:02 pm    Post subject: Reply with quote

1x Large 15 die MCM, 5x CPU + 10x cache? (comes with original ceramic lid) $175
1x Quad die MCM 22F0852 Complete $70
1x large white PGA $13
1x ASTRO $10
1x 87G4002 Unknown $6
1x CALYPSO chipset $10
1x BANDIT chipset $10
1x CMOS 92X6516 IBM ROCH EXPERIMENTAL ONLY $25
1x Unknown White chips (like chipset ASTRO MSA etc) $6
1x MSA 4026 Chipset on test jig $15
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stevejam



Joined: 30 Dec 2017
Posts: 803
Location: Metaluna aka Bellevue WA

PostPosted: Tue Feb 25, 2025 7:56 pm    Post subject: Reply with quote

1x CALYPSO chipset $10
1x BANDIT chipset $10
1x Unknown White chips (like chipset ASTRO MSA etc) $6
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Evilmonkeyz



Joined: 29 May 2020
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Location: WI, USA

PostPosted: Tue Feb 25, 2025 8:00 pm    Post subject: Reply with quote

1x Quad die MCM 22F0852 No lid or HS damaged dies $35
1x 87G4002 Unknown $6
1x CALYPSO chipset $10
1x BANDIT chipset $10
1x Unknown White chips (like chipset ASTRO MSA etc) $6

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stevejam



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PostPosted: Tue Feb 25, 2025 8:02 pm    Post subject: Reply with quote

1x MSA 4160 chopped corner $6
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xi11west



Joined: 07 Mar 2005
Posts: 1526
Location: Houston, TX

PostPosted: Tue Feb 25, 2025 10:39 pm    Post subject: Reply with quote

1x Quad die MCM 22F0852 Complete $70
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xi11west



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PostPosted: Wed Feb 26, 2025 12:06 am    Post subject: Reply with quote

1x COBRA LITE Engineering sample dated 2 16 1994 $120
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bccwchan



Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong

PostPosted: Wed Feb 26, 2025 8:34 am    Post subject: Reply with quote

1x Large MCM with no dies, very clean shape $75
1x large white PGA $13

for me please
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CPUShack



Joined: 16 Jun 2003
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PostPosted: Wed Feb 26, 2025 5:39 pm    Post subject: Reply with quote

Offers Accepted
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isa-d



Joined: 16 Aug 2006
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PostPosted: Thu Feb 27, 2025 10:34 am    Post subject: Reply with quote

1x Large 15 die MCM with only 2 dies, rough shape, corner broke on back side $45

for all my AVICC credit? Very Happy
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CPUShack



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PostPosted: Thu Feb 27, 2025 11:58 am    Post subject: Reply with quote

isa-d wrote:
1x Large 15 die MCM with only 2 dies, rough shape, corner broke on back side $45

for all my AVICC credit? Very Happy


In your box it goes

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Chriscosmo12



Joined: 14 May 2023
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PostPosted: Thu Feb 27, 2025 4:21 pm    Post subject: Reply with quote

1x Quad Die MCM 22F0852 Complete (Heatsink separated) $70
For $60? Thanks!

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CPUShack



Joined: 16 Jun 2003
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PostPosted: Thu Feb 27, 2025 9:24 pm    Post subject: Reply with quote

Chriscosmo12 wrote:
1x Quad Die MCM 22F0852 Complete (Heatsink separated) $70
For $60? Thanks!


yup

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