Macintosh IIfx

Archive No. 275

Macintosh IIfx

Picked up in massive shop haul. Had some rust, so I removed the metal shielding and painted. Recapped logic board and Power Supply Has E-machines video card and ethernet Nubus card Need to get / ma

Circa 1990RareFully Operational

Historical Context

Apple called it 'wicked fast' in the marketing, and for 1990 the description was honest. At $10,000 retail — more than most cars — the IIfx used dedicated I/O processors for each NuBus slot, custom DRAM timing developed in-house, and a 40 MHz 68030 that was measurably faster than any other Mac available. The most expensive and most powerful 68k Mac Apple ever built.

Specifications

Technical Blueprint

Ref: M5525

Processor

Motorola 68030 40MHz

Memory

8MB 64-pin SIMM

Storage

BlueSCSI v1 w 8GB SD Card

Operating System

MacOS 7.1

Hardware Notes

PRAM battery removed

Gallery

Detailed Observations

Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
blown tantalum cap

blown tantalum cap

Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
Macintosh IIfx
Macintosh IIfx

The Story

Picked up in massive shop haul. Had some rust, so I removed the metal shielding and painted. Recapped logic board and Power Supply Has E-machines video card and ethernet Nubus card Need to get / make more RAM for it.

Restoration Log

Work Done

Every repair, recap, and restoration performed on this machine — documented as the work was completed.

2025

PSU Recap

2024

Floppy Drive Recondition

2024

Retrobright

2024

Logic Board Recap

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