MCMs from IBM, NEC, DEC, Hitachi, Amdahl and Fujitsu

[naked1300]

i believe it is Power 7.....
I have several of those took out of an IBM
Power 795 Server.

[pixelmanca]

If anyone wants to know how to easily remove these IBM Power 6 MCM ceramic modules from their metal frames, without cutting the metal frames, just go to the topic below and use the same technique I describe in a post in that thread.

These IBM Power 6 MCM's are constructed in the exact same way as the Power 7 SCM's in that thread and can easily be removed the same way...

http://www.cpu-world.com/forum/viewtopic.php?t=33527

[Bator]

Hi everyone!
Earlier, Dear isa-d had already asked this question, but unfortunately we did not get to the truth. I'll ask you again what it could be?



Initially, this was:

[pixelmanca]

It's an IBM s/390 G1 Enterprise Class MCM, introduced in 1994.

Here's a picture that shows the smaller s/390 G1 Business Class MCM, from the Japanese show that had the display of all of the IBM MCM's at it:



Here's a picture that shows models from an IBM salesman's marketing case that showed prospective customers what s/390 G1 Business Class & G1 Enterprise Class MCMs looked like:



Here's pictures of my s/390 G1 Enterprise Class MCM:







It's unfortunate that over the years of use the thermal paste interacted with some of the die's back side coatings and made ugly looking stains on some of the dies coatings, because they're really nice purple and gold colored coated dies.

I see that you have similar stains on most your G1 MCM's dies Igor, so I guess it happened to all of them.

[Bator]

Wow! Thank you Glenn for the information. We with apa4 had an assumption that it is G1, but I thought G1 looks as Business Class MCM, and about existence of G1 Enterprise Class MCM I didn't know.

I have an assumption that we bought these G1 with you on Ebay from one seller;)

[Bator]

[pixelmanca]

I'm glad that I could help you to identify your MCM Igor.

Yes, it seems that IBM MCMs from that time period used the same kinds of coatings and that over time the interaction of the heat that the dies generated and the thermal paste caused the coatings on the dies to discolor and look stained now.

Here's a picture of a G2 MCM from the Japanese show and it also shows the same kind of discolorations on the dies:



Here's a G2 MCM that Roman, Apa4, owns and it also shows the same kind of die coating discolorations:



For sizing comparisons, here's a picture of my s/390 G1 Enterprise Class MCM next to my RS/6000 POWER2 MCM:



Here's a picture of those 2 MCMs below my AS/400 MCM & my Multiprise 3000 MCM, they are all the same size:



The thickness of the ceramic plates is different on them all and the Multiprise 3000 is the thickest of them and it used the exact same CPU & cache dies as IBM's G5 Enterprise Class MCM's:

[Bator]

Why such rare G3 TCM? Does anyone have a detailed photo of G3? I heard G3 aberco has. Maybe he'll show a picture.

[pixelmanca]

All of the s/390 G series MCMs are VERY rare now and I haven't seen any of them for sale in the last 3 years...

The G1 MCM that we were talking about above is the only G series MCM that I have and I would love to find any other G series MCMs to buy.

Here's the only 2 pictures that I've ever seen of the s/390 G3 Business Class MCM:





These 2 pictures are of a s/390 G3 Business Class salesman's case sample MCM to show clients:





These are the only pictures I've ever seen of the s/390 Enterprise Class MCM:







These 2 pictures are of a s/390 G3 Enterprise Class salesman's case sample to show clients:

[isa-d]

Many thanks for your advice
please let me know if you can identify or confirm also these others IBM MCM's

this all white MCM it's also an s/390 Business Class G3 ?

[isa-d]

These other two small MCM can be s/390 G1 Business Class ?

[Bator]

Someone can explain the difference between
IBM System z9 Business Class MCM
and
IBM System z9 Enterprise Class MCM?

here Business Class
http://www.redbooks.ibm.com/redbooks/pdfs/sg247241.pdf



here Enterprise Class
http://www.redbooks.ibm.com/redbooks/pdfs/sg247124.pdf

[Bator]

The previous question about IBM System z9 Business Class MCM and IBM System z9 Enterprise Class MCM remained unanswered ,
but I am sure there will be specialists and help find a solution.
In the meantime, I have the next question, what is this MCM?
Click on picture to enlarge!

[isa-d]

[Bator]

Maybe someone will be interested in how it looks without heatsink

https://www.cpu-world.com/forum/viewtopic.php?t=37797&highlight=tiger2



IBM93 69F1119 71 9311 1598 H31 82894