IBM PS2 Model 80 Technical Reference (May 1988): Difference between revisions
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The '''IBM Personal System/2 Model 80 386 Technical Reference''', '''First Edition (May 1988)''', is IBM's 88-page model-specific hardware and software interface reference for the [[IBM PS/2 Model 80|PS/2 Model 80]] (8580). It is the '''middle''' of three Model 80 technical references hosted here, and by far the thinnest: the [[IBM PS2 Model 80 Technical Reference (April 1987)|April 1987 edition]] is a 612-page standalone book, and the [[IBM PS2 Model 80 Technical Reference (October 1990)|October 1990 edition]] adds a power supply chapter back. | |||
== What it contains == | |||
* '''Section 1, System Overview''' — model and submodel bytes, system board devices and features, the block diagram and I/O address map, performance specifications by planar type and physical specifications. | |||
* '''Section 2, Programmable Option Select''' — the POS address map and setup registers. | |||
* '''Section 3, System Board''' — Micro Channel implementation and the central arbiter, the memory subsystem and memory connectors, the RT/CMOS RAM address map and real-time clock bytes, system control ports and the power-on password. | |||
== What it does not contain == | |||
This is a '''programming and interface reference, not a service manual'''. There are no FRU part numbers, no removal and replacement procedures, no symptom-to-FRU index and no component values — IBM put those in the model's Hardware Maintenance Reference and Hardware Maintenance Service pamphlets. There are no schematics; the planar is described as a block diagram and a set of register and connector tables. | |||
It is also '''not self-contained'''. IBM split the PS/2 Technical Reference library into volumes, and this one carries only the model-specific part. Anything common to the family — Micro Channel architecture, the serial and parallel port controllers, the instruction sets, the keyboard scan codes — is in the ''Hardware Interface Technical Reference'' volumes, and BIOS in the ''BIOS Interface Technical Reference''. | |||
The May 1988 editions in particular '''have no power supply section at all''' — IBM only added one to these books in the October 1990 revision. For rail voltages and protection limits on a May 1988 machine, use the October 1990 edition of the same technical reference, or the model's Hardware Maintenance Reference. | |||
<pdf> File:IBM PS2 Model 80 Technical Reference May88.pdf </pdf> | <pdf> File:IBM PS2 Model 80 Technical Reference May88.pdf </pdf> | ||
Download it here: [[:File:IBM PS2 Model 80 Technical Reference May88.pdf|IBM PS2 Model 80 Technical Reference May88.pdf]] | |||
== Related pages == | |||
* [[IBM PS/2 Model 80]] · [[IBM PS/2 Model 80 Maintenance Guide]] · [[IBM PS/2 Model 80 Troubleshooting Guide]] · [[IBM PS/2 Model 80 Capacitor Replacement Guide]] | |||
* [[IBM PS2 Model 80 Technical Reference (April 1987)]] · [[IBM PS2 Model 80 Technical Reference (October 1990)]] · [[IBM PS2 Model 80 Schematics]] | |||
[[Category:IBM Service Manuals]] | [[Category:IBM Service Manuals]] | ||
[[Category:Service Manuals]] | |||
Latest revision as of 00:16, 25 September 2026
The IBM Personal System/2 Model 80 386 Technical Reference, First Edition (May 1988), is IBM's 88-page model-specific hardware and software interface reference for the PS/2 Model 80 (8580). It is the middle of three Model 80 technical references hosted here, and by far the thinnest: the April 1987 edition is a 612-page standalone book, and the October 1990 edition adds a power supply chapter back.
What it contains
[edit | edit source]- Section 1, System Overview — model and submodel bytes, system board devices and features, the block diagram and I/O address map, performance specifications by planar type and physical specifications.
- Section 2, Programmable Option Select — the POS address map and setup registers.
- Section 3, System Board — Micro Channel implementation and the central arbiter, the memory subsystem and memory connectors, the RT/CMOS RAM address map and real-time clock bytes, system control ports and the power-on password.
What it does not contain
[edit | edit source]This is a programming and interface reference, not a service manual. There are no FRU part numbers, no removal and replacement procedures, no symptom-to-FRU index and no component values — IBM put those in the model's Hardware Maintenance Reference and Hardware Maintenance Service pamphlets. There are no schematics; the planar is described as a block diagram and a set of register and connector tables.
It is also not self-contained. IBM split the PS/2 Technical Reference library into volumes, and this one carries only the model-specific part. Anything common to the family — Micro Channel architecture, the serial and parallel port controllers, the instruction sets, the keyboard scan codes — is in the Hardware Interface Technical Reference volumes, and BIOS in the BIOS Interface Technical Reference.
The May 1988 editions in particular have no power supply section at all — IBM only added one to these books in the October 1990 revision. For rail voltages and protection limits on a May 1988 machine, use the October 1990 edition of the same technical reference, or the model's Hardware Maintenance Reference.
Download it here: IBM PS2 Model 80 Technical Reference May88.pdf