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CPUShack

Joined: 16 Jun 2003 Posts: 34259 Location: State of Jefferson, USA
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Posted: Tue Feb 25, 2025 5:02 pm Post subject: CPU Shack: Rare IBM Cobra MCM stuff - Offers Accepted |
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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
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Posted: Tue Feb 25, 2025 5:02 pm Post subject: |
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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
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Posted: Tue Feb 25, 2025 7:56 pm Post subject: |
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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 Posts: 363 Location: WI, USA
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Posted: Tue Feb 25, 2025 8:00 pm Post subject: |
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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 _________________ Check out my microscope picture of silicon dies and other things on my Instagram account!
Personal Website:
https://www.evilmonkeyzdesignz.com/
Instagram:
https://www.instagram.com/evilmonkeyzdesignz/ |
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stevejam

Joined: 30 Dec 2017 Posts: 803 Location: Metaluna aka Bellevue WA
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Posted: Tue Feb 25, 2025 8:02 pm Post subject: |
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| 1x MSA 4160 chopped corner $6 |
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xi11west

Joined: 07 Mar 2005 Posts: 1526 Location: Houston, TX
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Posted: Tue Feb 25, 2025 10:39 pm Post subject: |
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| 1x Quad die MCM 22F0852 Complete $70 |
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xi11west

Joined: 07 Mar 2005 Posts: 1526 Location: Houston, TX
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Posted: Wed Feb 26, 2025 12:06 am Post subject: |
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| 1x COBRA LITE Engineering sample dated 2 16 1994 $120 |
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bccwchan

Joined: 20 Sep 2004 Posts: 2585 Location: Hong Kong
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Posted: Wed Feb 26, 2025 8:34 am Post subject: |
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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 Posts: 34259 Location: State of Jefferson, USA
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isa-d

Joined: 16 Aug 2006 Posts: 2984 Location: Italy
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Posted: Thu Feb 27, 2025 10:34 am Post subject: |
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1x Large 15 die MCM with only 2 dies, rough shape, corner broke on back side $45
for all my AVICC credit?  |
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CPUShack

Joined: 16 Jun 2003 Posts: 34259 Location: State of Jefferson, USA
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Posted: Thu Feb 27, 2025 11:58 am Post subject: |
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| 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?  |
In your box it goes _________________ New for 2025! The CPU Shack has a co-processor!
Visit The CPU Shack of microprocessor history and information. |
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Chriscosmo12

Joined: 14 May 2023 Posts: 426 Location: Texas, USA
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Posted: Thu Feb 27, 2025 4:21 pm Post subject: |
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1x Quad Die MCM 22F0852 Complete (Heatsink separated) $70
For $60? Thanks! _________________ My Collection Archive |
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CPUShack

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