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ludella
Joined: 23 Jul 2011
Posts: 18
Location: Italy
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 Posted: Tue Feb 21, 2012 1:33 pm Post subject: White ceramic IBM cpu - from which mainframe? |
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Hi all,
I've just got this new IBM cpu, coming from a mainframe.
Anyone could help providing some more info on that?
And, if someone had experience on that, will a heat gun be enough for removing the lid??
Thanks!!  |
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Tue Feb 21, 2012 8:01 pm Post subject: |
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Quad-core cpu???
Cooooool. |
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Tue Feb 21, 2012 8:05 pm Post subject: |
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It make it more difficult to find the cpu information if the cpu cover is missing. Do you have the cpu cover?
We all have experience how difficult to idenify IBM cpu even the FRU number is known. |
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doccybrown
Joined: 03 Oct 2005
Posts: 1736
Location: Germany
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| Posted: Wed Feb 22, 2012 1:44 am Post subject: |
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Never seen one of those before,
a very nice and uncommon gem!
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doccybrown
Joined: 03 Oct 2005
Posts: 1736
Location: Germany
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| Posted: Wed Feb 22, 2012 1:59 am Post subject: |
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Hmmmmmm 4 cores, also a Muskie?
Or the only one real Muskie?
Paolo has a A25 Muskie-board and I think
this MCMs are sitting on those boards:
http://ummr.altervista.org/tenpictures.htm
Paolo, if you read this, could you please lift
up the heatsink on one of the A25-MCMs?
Or take other picture with more detailed
view from the side?
But if true.... what are all the other MCMs that are believed to be Muskies?!?
Likely fourway Power-MCMs, would
make sense because there must
exists some in the midrange.
We have seen low-end singlecore and
huge multicore but where is the midrange?
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Wed Feb 22, 2012 2:37 am Post subject: |
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| doccybrown wrote: | But if true.... what are all the other MCMs that are believed to be Muskies?!?
Likely fourway Power-MCMs |
Is what I was thinking..
even noticed that IBM used some hybrid 4-way PowerPC in some of their systems
I think there is many levels to each IBM CPU family and at times the construction between 1, 2 or 4 way chips can be drastically different
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http://www.x86-guide.net/Neon-WA/en/collection.html |
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ludella
Joined: 23 Jul 2011
Posts: 18
Location: Italy
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| Posted: Wed Feb 22, 2012 3:22 am Post subject: |
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@bccwchan What do you mean for "cpu cover"?
I've found some of these beauties in a cpus/ics lot on eBay...some of these Ibm cpus have the cover that's no more blue, only silver without any mark on it. The "blue" ones are equivalent to the one presented, without any other cover/lid or heatsink on top.
If it can be useful for identifying, below a photo of other components found together with the cpus (mainly memories, is it correct?) that presumably where desoldered from the same board/machine. |
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doccybrown
Joined: 03 Oct 2005
Posts: 1736
Location: Germany
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| Posted: Wed Feb 22, 2012 3:27 am Post subject: |
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| Neon_WA wrote: |
I think there is many levels to each IBM CPU family and at times the construction between 1, 2 or 4 way chips can be drastically different |
Yeah this sheer variety alone makes it sometimes ultrahard
to identify the different processors: One type of processor
in different versions/speeds/manufacturing processes plus
all the variants with different quantity of cores/chips on module.
HP processors are a real pleasure compared to IBM-stuff... 
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Wed Feb 22, 2012 4:25 am Post subject: |
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| ludella wrote: | @bccwchan What do you mean for "cpu cover"?
I've found some of these beauties in a cpus/ics lot on eBay...some of these Ibm cpus have the cover that's no more blue, only silver without any mark on it. The "blue" ones are equivalent to the one presented, without any other cover/lid or heatsink on top.
If it can be useful for identifying, below a photo of other components found together with the cpus (mainly memories, is it correct?) that presumably where desoldered from the same board/machine. |
I mean the metal cover (if any )which usually show a unique FRU number. The FRU number is present at NNANNNN where N is numeric code and the A is alphabet.
The FRU number is 21F6240 in the left upper one if apply to you shown photo. |
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UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
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| Posted: Wed Feb 22, 2012 4:37 am Post subject: |
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Hello,
sorry for the delay...
I checked out my Muskie CPU board: MCMs are quite different from this. The pin count doesn't match and the Muskie modules are larger.
BUT I have a chip like this in my collection of IBM hardware, with similar P/N (22F0975 instead of 22F0976).
I've found it on a IBM 16 MB ECC RAM board for AS/400 systems. I think, but I'm not sure, it's a sort of buffer/interface from system to memory.
I know there are various examples of MCMs in IBM memory subsystems (RIOS/1 and /9 card, Processor Complex Type 3 for PS/2 Model 90...); they look like CPUs, but in fact they are I/O or buffer chips.
Paolo |
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Wed Feb 22, 2012 4:46 am Post subject: |
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I have the similar pin count cpu.
Please have a look.
Would you tell me the size of cpu?
Last edited by bccwchan on Wed Feb 22, 2012 4:52 am; edited 1 time in total |
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UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
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| Posted: Wed Feb 22, 2012 4:50 am Post subject: |
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| ludella wrote: | @bccwchan What do you mean for "cpu cover"?
I've found some of these beauties in a cpus/ics lot on eBay... |
IBM is well known among collectors for the large number of different packages and mysterious chips... they are usually VERY difficult to identify...
The "aluminium box" package has been introduced in the early 70s with the so called Dutchess family of logic chips (in fact, TTL gate arrays) and it has been used for a very wide variety of IBM components. I think the marks IBM52, IBM5352, IBM9314 and so on are references to the different production plants.
Paolo |
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UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
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| Posted: Wed Feb 22, 2012 4:54 am Post subject: |
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| bccwchan wrote: | I have the similar pin count cpu.
Please have a look.
Would you tell me the size of cpu? |
Hi,
beautiful board. It's a channel processor and it came from a IBM 3745/6 SNA communication controller.
Great addition to Your collection!
Paolo |
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Wed Feb 22, 2012 5:00 am Post subject: |
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| UMMR wrote: | | bccwchan wrote: | I have the similar pin count cpu.
Please have a look.
Would you tell me the size of cpu? |
Hi,
beautiful board. It's a channel processor and it came from a IBM 3745/6 SNA communication controller.
Great addition to Your collection!
Paolo |
Hello Paolo,
Thank for your wonderful website to let me know what this beautiful board is.
I didn't know what this board was when I bought it. I've searched several months and found the answer when I found your website.
So I believe you're our teacher to tell me the old vintage cpu board. |
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Glory_Cloud
Joined: 24 Jul 2010
Posts: 2942
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| Posted: Wed Feb 22, 2012 9:07 am Post subject: |
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I am getting ready to tear down an IBM 3746 Comm controller.
I will be on the lookot for pretty boards and chips like the TCM's.  |
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