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Macintosh Performa 630

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Revision as of 13:40, 27 September 2026 by Josh (talk | contribs) (Apple Service Source: case width and depth were transposed across the 630 family (Apple: 16.5 in W x 12.6 in D); sound is 8-bit MONO input and 8-bit stereo output (16-bit only in CD mode), not 16-bit stereo in and out; added Apple's 45 W supply rating, 1 MB ROM, the two logic-board SIMM variants 661-0158 (36 MB) and 661-1114 (52 MB), the no-internal-SCSI statement and the slot pinouts; recorded that Apple's own volume misprints maximum power as 5 W)
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Macintosh Performa 630
Macintosh Performa 630
Specifications
ManufacturerApple Computer, Inc.
TypePersonal Computer
ReleasedJuly 18, 1994
DiscontinuedJuly 1995
Intro priceUS$1,449
CPUMotorola 68LC040 @ 33 MHz
Memory4 MB RAM (expandable to 36 MB)
Storage250 MB IDE hard drive, 1.44 MB floppy drive
DisplaySupports up to 832ร—624 at 8-bit color
Sound8-bit mono input, 8-bit stereo output (16-bit in CD mode)
Dimensions4.3" H ร— 16.5" W ร— 12.6" D (10.95 ร— 41.95 ร— 32 cm)
Weight19 lbs (8.6 kg)
OS / FirmwareSystem 7.1.2P โ€“ Mac OS 8.1
PredecessorPerforma 600
SuccessorPerforma 6200
CodenameCrusader
Model no.M3076

The Macintosh Performa 630 is a consumer-oriented personal computer manufactured by Apple Computer and released on July 18, 1994.[1] It is a rebrand of the Macintosh LC 630 for the consumer retail market, featuring a 68LC040 processor without a floating-point unit.

The Performa 630 was the base model in the 630 series, shipped without a CD-ROM drive. It was bundled with a 14-inch Apple Performa Display Plus, keyboard, mouse, and consumer-oriented software including ClarisWorks, At Ease, and Quicken.[2]

Model Variants

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The Performa 630 was part of a large family of consumer models based on the Macintosh LC 630:

Architecture and Processor

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The Performa 630 uses a Motorola 68LC040 processor running at 33 MHz. Unlike the Quadra 630 which uses a full 68040, the LC and Performa variants lack the integrated floating-point unit (FPU). The processor can be replaced with a full 68040 to add FPU functionality.

The system bus operates at 33 MHz. The 630 includes 1 MB of ROM.

Memory and Storage

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RAM Configuration

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The Performa 630 ships with 4 MB of RAM soldered to the logic board. A single 72-pin SIMM socket allows expansion up to 36 MB total (4 MB onboard + 32 MB SIMM). 80 ns non-parity SIMMs are required.[3]

Storage Systems

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The Performa 630 was the first desktop Macintosh to use an IDE hard drive interface rather than SCSI, reducing manufacturing costs. The system includes a 250 MB IDE hard drive and a 1.44 MB SuperDrive floppy.

An external SCSI port remains available for peripherals.

Display and Graphics

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The system includes 1 MB of dedicated DRAM for video (non-upgradeable). Supported resolutions:

  • 512ร—384, 640ร—480: 16-bit color (thousands of colors)
  • 800ร—600, 832ร—624: 8-bit color (256 colors)

An LC PDS video card can be added for higher resolutions or a second display.

Input/Output and Expansion

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Port Configuration

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  • 2ร— ADB ports (keyboard, mouse)
  • 2ร— Serial ports (DIN-8, RS-422)
  • 1ร— External SCSI (DB-25)
  • 1ร— DA-15 video output
  • 1ร— Headphone jack (front panel)
  • Front panel volume controls

Expansion Slots

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  • 1ร— LC PDS slot
  • 1ร— Comm slot (modem/ethernet)
  • 1ร— Video slot (video input/output card)
  • 1ร— TV tuner slot

General Maintenance

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For detailed maintenance procedures including cleaning, PRAM battery replacement, and connector care, refer to the Macintosh LC 630 General Maintenance page.

Capacitor Replacement Guide

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Detailed capacitor replacement guidelines for the logic board can be found on the Macintosh LC 630 Capacitor Replacement Guide page.

Troubleshooting

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A troubleshooting guide for power issues, startup problems, and Sad Mac errors is available on the Macintosh LC 630 Troubleshooting page.

Service Documentation

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The official Apple Service Source documentation for this model:


Apple service data

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Apple's own figures for the 630 series, from the Macintosh Performa 630 Series Service Source volume hosted on this wiki.[4]

Item Apple's figure
Case Height 4.3 in. (10.95 cm), width 16.5 in. (41.95 cm), depth 12.6 in. (32 cm)
Weight Without CD-ROM 17 lb. (7.7 kg); with CD-ROM 19 lb. (8.6 kg)
Line voltage 100โ€“240 VAC, 50โ€“60 Hz
Maximum power 45 W, not including the monitor
ROM 1 MB
DRAM 4 MB built in, expandable to 36 MB if the logic board has one SIMM slot (part number 661-0158) or 52 MB if it has two (part number 661-1114; one ordinary slot and one single-sided slot)
Video 1 MB DRAM frame buffer; video memory cannot be expanded. Up to 16 bits per pixel on 12-, 13- and 14-inch Apple monitors, the 15-inch multiple-scan and VGA (640ร—480); up to 8 bits per pixel on the Apple 16-inch and SVGA (800ร—600)
Sound 8-bit monophonic sound input; 8-bit stereo output (16-bit in CD mode), nominally 0.5 V RMS into 39 ohms. Internal speaker muted when a plug is inserted in an output jack
Microphone Electret, omnidirectional, running on 8 VDC supplied by the sound-input port
Storage IDE hard drive. Apple states that 630-series machines do not support internal SCSI hard drives — the internal IDE interface was new to Apple with this family
Slots Processor-direct slot 114-pin (LC-compatible); communications slot 112-pin; video-in slot 60-pin; TV tuner port 10-pin
SCSI One external DB-25 port, up to six external devices

Maximum power is printed as "5 W" in the Performa 630 Series volume. The LC 630/Quadra 630/Performa 640 volume, covering the same logic board and the same chassis, prints 45 W in the same field; 5 W is an Apple typographical error and 45 W is used here.[4][5]

A PRAM battery threshold is given nowhere in either 630-series volume. Apple's symptom chart step appears as "Unplug 4.5 battery" in the LC 630 volume and "Unplug 5.4 battery" in the Performa 630 volume — for the identical instruction, in the same family. The Performa 6200/6300 volume, for the machine that replaced this one in the same chassis, prints "Unplug 4.5 V battery" with the unit spelled out, and gives replace below 3.0 V measured on the 10 V DC scale. Treat "5.4" as a transposition of 4.5, identify the pack from its own markings before buying a replacement, and neutralise any leakage with sodium bicarbonate unless the cell in front of you is marked alkaline.[4][5]

See Also

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References

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  1. โ†‘ Macintosh Performa 630 and 630CD: Technical Specifications, Apple Inc.โ€”link(accessed 2026-02-10)
  2. โ†‘ Performa 630 and LC 630, Low End Macโ€”link(accessed 2026-02-10)
  3. โ†‘ Macintosh Performa 630 Specs, EveryMac.comโ€”link(accessed 2026-02-10)
  4. โ†‘ 4.0 4.1 4.2 Apple Computer, Macintosh Performa 630 Series, Service Source. Hosted here as Macintosh Performa 630 Series Service Source (File:Performa_630_series.pdf). Specifications chapter.
  5. โ†‘ 5.0 5.1 Apple Computer, LC 630/Quadra 630/Performa 640, Service Source. Hosted here as LC 630/Quadra 630/ Performa 640 Service Source (File:Quadra.lc_630.performa_640.pdf). Specifications chapter.