Two strange Intel Chips

[i440bx]

Hi there,

during clean up/recatalog my collection i found this both chips and dont know what they are.

1. Intel A4MRC00-S W200
Something out of a Paragon Supercomputer.
Link 1: https://www.cpu-world.com/forum/viewtopic.php?t=23346&postdays=0&postorder=asc&highlight=a4mrc00&start=15

Link 2: https://en.wikipedia.org/wiki/Intel_Paragon

But what is a interconnect chip? Something like a bus controller or arbiter?

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2. Intel IBM 43F9750

Link 1: https://www.cpu-world.com/forum/viewtopic.php?p=125578
Link 2: https://jasoneckert.github.io/myblog/anatomy-of-an-as400/

But both links do not give the right informations about IBM 43F9750.

After some search about the first AS400 i ended up here:
https://en.wikipedia.org/wiki/IBM_POWER_microprocessors

But i think my 43F9750 is not out of an AS400

Maybe you know more about them?

[crusty_dog]

Do you have any pictures of the pin side?

MRC = Memory Reference Code for Intel based boards?

[i440bx]

For sure.

The A4M... is like a Socket 7 Pin configuration, but the size is smaller.

[crusty_dog]

All SWxxx sSpec chips listed so far have been from the 80960 family.

[i440bx]

[crusty_dog]

[rjluna2]

Well, that's interesting Intel's sSpec ID: SW200 here

[crusty_dog]

With regards the IBM / Intel chip
DR2D files are part of Interchange File Format (IFF) developed around the time of this chip.
The "X" plant indentifier in the FPO means it came from development plant section

Also worth noting that the 1980 copyright fits in between the 186 & 286
Possibly worth looking for Intel chips with the same copyright combination

A almost identical chip from 1993, but with a different IBM FRU 36G1056
https://m.aliexpress.com/item/32417073592.html

[i440bx]

Some sucess at the 43F9750.

Its a part out of an "IBM 3390 direct access storage device"
https://www.ibm.com/ibm/history/exhibits/storage/storage_3390.html

43F9752 is a IBM 3390 DEVICE ADAPTER

so the Chip 43F9750 may be a part of this Adapter.