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IBM PS2 Model 30 286 Hardware Maintenance Reference

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Revision as of 00:16, 25 September 2026 by Josh (talk | contribs) (P4 verification: real documentation page - title as printed, part/form number, edition, contents, honest gaps, what it settles, cross-links)

The IBM PS/2 Model 30 286 Hardware Maintenance Reference is IBM's 55-page service reference pamphlet for the PS/2 Model 30 286 (8530-E series). Part number 64F3988, form number S64F-3988-00, First Edition (March 1990).

What it contains

The Hardware Maintenance Reference pamphlets all follow the same structure:

  • 1.0 Product Description — security and the cover lock, the power-on password, and the system-board features (microprocessor, CMOS RAM, ROM BIOS, video, serial and parallel ports, diskette controller, keyboard and pointing-device connectors).
  • 2.0 Option Compatibility — drive and diskette compatibility, fixed disk drives and terminators, and any adapters that are incompatible with this model.
  • 3.0 Operating Requirements — the power supply and its minimum under-voltage sense levels, the power-on self-test, and the memory subsystem with its configuration rules and error handling.
  • 4.0 Specifications — size, weight, electrical input and heat output.
  • 5.0 Special Tools — the model's own service tools.
  • 6.0 Removals and Replacements — the numbered 10xx procedures, in the order IBM intends them to be done.
  • 7.0 Locations — front, rear, interior and system-board views with connector and jumper callouts.

Model-specific removals: 1000 Cover, 1010 Rear Cover, 1015 Diskette and Fixed Disk Drives, 1020 Adapters, 1025 Bus Adapter, 1030 Cover Lock Assembly, 1035 Power Supply, 1040 Memory-Module Pack, 1045 Math Coprocessor, 1050 System Board, 1055 Front Bezel, 1060 Power Switch and Link, 1065 Drive Cradle, 1070 Clock Module and 1075 Diskette-Drive Cable. Section 2.1 lists adapters that are incompatible with this planar — worth reading before buying an ISA card for an 8530-E.

What it does not contain

Module level only. IBM serviced these machines by field-replaceable-unit exchange, and this pamphlet reflects that: it names FRU part numbers, not component values. There is no capacitor list, no resistor list, no semiconductor list and no schematic anywhere in it. The power supply, the planar and each drive are single line items in the parts catalogue. This is why no IBM machine checked in this wiki's verification drive has a published component-level capacitor list — it is not that the manuals were lost, it is that IBM never wrote one.

It is also not a standalone book. IBM issued it as a pamphlet to be filed in a binder alongside the general-purpose IBM Personal System/2 Hardware Maintenance Reference (part number 15F2190, form number S15F-2190-00) and Hardware Maintenance Service (part number 15F2200, form number S15F-2200-00), which carry the safety information, the general checkout procedure and the option and adapter sections. Those two general volumes are not hosted here.

What it settles

The clock module is a separate FRU with its own removal procedure (6.14, "1070 Clock Module") on the Model 30 286. On a machine that will not hold the date, that is the part to change; it is not a soldered battery.

Download it here: IBM PS2 Model 30 286 HMR.pdf

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