IBM's 386 Tower of Power: The PS/2 Model 80

Compaq beat IBM to the 386 PC punch, but the Big Blue Empire struck back with the Personal System/2 Model 80 386. With a 32-bit Micro Channel bus and room for six drives IBM was making a big case for the future of computing. But what’s inside this monstrous machine and what upgrades are available? Join me as I pull this PC apart to see what you got when you bought a $6850 workstation in 1990.

Blog Post: https://www.userlandia.com/home/ibm-ps2-model-80

-=- Chapters -=-

00:00 - Intro
00:35 - Adopting a Micro Channel PC
04:38 - The Case
07:35 - Drive Bays and Power Supply
09:30 - Disassembling the Model 80
13:35 - Micro Channel Slots and Cards
15:53 - Auxiliary Video Extension
18:38 - Token Ring Network Card
19:05 - IBM PS/2 SCSI Adapter
19:51 - IBM Enhanced 80386 Memory Adapter w/ ROM
23:12 - Programmable Option Select
25:31 - Auto Configuration In Action
27:51 - Period Appropriate Productivity
29:15 - XGA-2 Graphics Adapter
34:21 - Conclusion & Outro

-=- Links -=-

* Ardent Tool of Capitalism - https://www.ardent-tool.com
* Model 8580-081 Resources - https://www.ardent-tool.com/8580/Planar_T2.html
* Tube Time's MCA Tutorial: https://github.com/schlae/mca-tutorial
* The Micro Channel Architecture Handbook by Chet Heath and Winn Rosch: https://archive.org/details/microchannelarch00heat
* IBM Museum - https://www.youtube.com/@IBM_Museum/
* BOPT 16 MB Barrier Walkthrough: https://groups.google.com/g/comp.sys.ibm.ps2.hardware/c/SIRXr3RBBLM/m/4fDpZeg-YtkJ

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