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{{Infobox computer
{{Infobox computer
| name        = Macintosh Performa 630
| name        = Macintosh Performa 630
| image        = [[File:Macintosh_LC_630.jpg]]
| image        = [[File:Apple Macintosh Performa 630.jpg|250px|frameless]]
| caption      = Macintosh Performa 630
| caption      = Macintosh Performa 630 (Hellis, Italian Wikipedia, CC BY-SA 3.0)
| manufacturer = Apple Computer, Inc.
| manufacturer = Apple Computer, Inc.
| type        = Personal Computer
| type        = Desktop personal computer
| release date = July 18, 1994
| release_date = July 1994
| discontinued = July 1995
| price        = US$1,500
| price        = US$1,449
| cpu          = Motorola 68LC040 at 33 MHz, no FPU
| cpu          = Motorola 68LC040 @ 33 MHz
| memory      = 4 MB on the logic board; one 72-pin SIMM socket (80 ns); 36 MB maximum
| memory      = 4 MB RAM (expandable to 36 MB)
| rom          = 1 MB
| storage      = 250 MB IDE hard drive, 1.44 MB floppy drive
| graphics    = 1 MB DRAM frame buffer, not expandable; DB-15 port
| display      = Supports up to 832×624 at 8-bit color
| storage      = 250 MB internal IDE hard drive
| sound        = Stereo 16-bit sound input/output
| media        = 1.4 MB Apple SuperDrive (manual insert); bay for an optional AppleCD 300i Plus
| dimensions  = 4.3" H × 12.6" W × 16.5" D
| sound        = 8-bit mono input; 8-bit stereo output (16-bit in CD mode)
| weight      = 19 lbs (8.6 kg)
| expansion    = 114-pin LC processor-direct slot, 112-pin communications slot, 60-pin video-in slot, 10-pin TV tuner connector
| os          = System 7.1.2P – Mac OS 8.1
| ports        = One ADB, two RS-232/RS-422 serial (mini DIN-8), SCSI (DB-25), DB-15 video, sound in, sound out front and rear
| predecessor  = [[Macintosh Performa 600|Performa 600]]
| power       = 100-240 V AC, 50-60 Hz, 45 W maximum
| successor    = [[Macintosh Performa 6200|Performa 6200]]
| dimensions  = 4.3 × 16.5 × 12.6 in (10.95 × 41.95 × 32 cm)
| weight      = 17 lb (7.7 kg) without CD-ROM drive
| os          = System 7.1.2P to Mac OS 8.1
| codename    = Crusader
| codename    = Crusader
| model        = M3076
| model        = M3076 (Gestalt ID 98)
}}
}}
The '''Macintosh Performa 630''' is a consumer-oriented personal computer manufactured by Apple Computer and released on July 18, 1994.<ref>{{cite web |url=https://support.apple.com/en-us/112345 |title=Macintosh Performa 630 and 630CD: Technical Specifications |publisher=Apple Inc. |access-date=2026-02-10}}</ref> It is a rebrand of the [[Macintosh LC 630]] for the consumer retail market, featuring a 68LC040 processor without a floating-point unit.
The '''Macintosh Performa 630''' is the consumer version of the [[Macintosh LC 630]] and [[Macintosh Quadra 630]], a low-profile desktop Macintosh with a 33 MHz 68LC040 that Apple introduced in July 1994.<ref name="apple">{{cite web |url=https://support.apple.com/en-us/112345 |title=Macintosh Performa 630 and 630CD: Technical Specifications |publisher=Apple |access-date=2026-09-30}} 68LC040 at 33 MHz, no FPU; slots LC, comm, TV, video in; one ADB; DB-15 video; 45 W maximum, 100-240 V; battery type 4.5 V alkaline; 4 MB on the logic board, one 72-pin SIMM slot, 4-36 MB, 80 ns; introduced 7/1/1994; Gestalt ID 98; System 7.1.2P with System Enabler 405; 250 MB IDE; 19 lb.</ref> Apple's specification sheet dates it 1 July 1994; EveryMac and Wikipedia give 18 July 1994.<ref name="apple" /><ref name="everymac">{{cite web |url=https://everymac.com/systems/apple/mac_performa/specs/mac_performa_630.html |title=Apple Macintosh Performa 630 (CD) (PC) Specs |publisher=EveryMac |access-date=2026-09-30}} Introduced 18 July 1994, discontinued 1 July 1995; 4 MB or 8 MB; 250 MB IDE; order numbers M3423LL/A (no CD-ROM) and M3424LL/A (630CD); US$1,500 and US$2,250; model M3076; Gestalt ID 98; supported system software 7.1.2P to 8.1.</ref><ref name="wp">{{cite web |url=https://en.wikipedia.org/wiki/Macintosh_Quadra_630 |title=Macintosh Quadra 630 |publisher=Wikipedia |access-date=2026-09-30}} Quadra and Performa 630 introduced 18 July 1994; codename "Crusader" (citing Jim Heid, "Multimedia Mac", ''Macworld'', September 1994, pp. 98-103).</ref> The base Performa 630 has no CD-ROM drive; the [[Macintosh Performa 630CD|Performa 630CD]] adds one. EveryMac lists the 630 at US$1,500 (order number M3423LL/A).<ref name="everymac" />


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.<ref>{{cite web |url=https://lowendmac.com/1994/performa-630/ |title=Performa 630 and LC 630 |publisher=Low End Mac |access-date=2026-02-10}}</ref>
Apple's ''Macintosh Performa 630 Series'' Service Source covers the Performa 630, 630CD, 631CD, 635CD, 636, 637CD and 638CD.<ref name="ss">Apple Computer, ''Macintosh Performa 630 Series'' Service Source (1995), [[:File:Performa 630 series.pdf]]; see [[Macintosh Performa 630 Series Service Source]]. PDF page numbers: title p. 1; General Information pp. 3-6; Product Configuration pp. 7-12; Logic Board Diagram p. 15; Specifications pp. 18-28; Symptom Charts pp. 31-46; Processor Upgrade pp. 100-116; Power Macintosh 5300/6300 Logic Board Upgrade pp. 117-118.</ref>


== Model Variants ==
== Performa 630 series configurations ==
The Performa 630 was part of a large family of consumer models based on the [[Macintosh LC 630]]:
<templatestyles src="Template:StyledTable/styles.css" />
* [[Macintosh Performa 630CD|Performa 630CD]] – Added 2× CD-ROM drive
{| class="wikitable styled-table" style="width:90%; text-align:center;"
* [[Macintosh Performa 631CD|Performa 631CD]] – 8 MB RAM, 500 MB HD, bundled with modem and display
|+'''Configurations in Apple's Service Source'''
* [[Macintosh Performa 635CD|Performa 635CD]] – 5 MB RAM, CD-ROM, modem, and display bundle
! Model !! RAM !! Hard drive !! CD-ROM drive !! Display !! Modem !! Other
* [[Macintosh Performa 636|Performa 636]] – Higher-education market variant
|-
* [[Macintosh Performa 636CD|Performa 636CD]] – 636 with CD-ROM
| Performa 630 || 4 MB || 250 MB || None || 14-inch Performa Display Plus || TelePort ||
* [[Macintosh Performa 637CD|Performa 637CD]] – 636CD with display bundle
|-
* [[Macintosh Performa 638CDV|Performa 638CDV]] – Added TV tuner/video input card
| [[Macintosh Performa 630CD|630CD]] || 8 MB || 250 MB || AppleCD 300i Plus || 14-inch Performa Display Plus || TelePort ||
* [[Macintosh Performa 640CD DOS Compatible|Performa 640CD DOS Compatible]] – With Intel 486DX2 DOS card
|-
| [[Macintosh Performa 635CD|635CD]] || 5 MB || 250 MB || AppleCD 300i Plus || 15-inch Performa Display || TelePort ||
|-
| [[Macintosh Performa 636|636]] || 4 MB || 250 MB || None || 14-inch Performa Display Plus || None ||
|-
| [[Macintosh Performa 637CD|637CD]] || 8 MB || 250 MB || AppleCD 300i Plus || 15-inch Performa Display || TelePort || TV tuner and video-in cards
|-
| [[Macintosh Performa 638CDV|638CD]] || 8 MB || 250 MB || AppleCD 300i Plus || 15-inch Performa Display || TelePort || TV tuner and video-in cards
|}
The manual's title page also names the [[Macintosh Performa 631CD|631CD]] but gives no configuration for it.<ref name="ss" /> The [[Macintosh Performa 640CD DOS Compatible|Performa 640CD DOS Compatible]] is covered by the ''LC 630/Quadra 630/Performa 640'' Service Source.<ref name="sslc">Apple Computer, ''LC 630/Quadra 630/Performa 640'' Service Source, [[:File:Quadra.lc 630.performa 640.pdf]]; see [[LC 630/Quadra 630/ Performa 640 Service Source]]. Specifications chapter.</ref>


== Architecture and Processor ==
== Specifications ==
The Performa 630 uses a Motorola 68LC040 processor running at 33 MHz. Unlike the [[Macintosh Quadra 630|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.
{| class="wikitable styled-table" style="width:90%;"
|+'''Performa 630 series specifications (Apple)'''
! Item !! Specification
|-
| Processor || Motorola 68LC040 at 33 MHz; 32-bit registers, address and data buses<ref name="ss" />
|-
| RAM || 4 MB built in; 36 MB maximum on a logic board with one SIMM slot (part 661-0158), 52 MB on a board with two (661-1114: one ordinary slot and one single-sided slot)<ref name="ss" />
|-
| ROM || 1 MB<ref name="ss" />
|-
| Video || 1 MB DRAM frame buffer, not expandable; up to 16 bits per pixel on Apple 12- to 14-inch monitors, the 15-inch multiple-scan and VGA (640 × 480); up to 8 bits on the Apple 16-inch and SVGA (800 × 600)<ref name="ss" />
|-
| Drives || 1.4 MB SuperDrive, manual insert; 250 MB IDE hard drive; optional AppleCD 300i Plus. Internal SCSI hard drives are not supported<ref name="ss" />
|-
| Ports || Two RS-232/422 serial (mini DIN-8); one external SCSI (DB-25); one ADB (mini DIN-4); DB-15 monitor port on the video daughterboard<ref name="ss" />
|-
| Sound || 8-bit mono input (microphone or line level, with bias current for an electret microphone); 8-bit stereo output, 16-bit in CD mode, 0.5 V RMS into 39 ohms, front and rear jacks<ref name="ss" />
|-
| Slots || 114-pin LC processor-direct slot; 112-pin communications slot; 60-pin video-in slot; 10-pin TV tuner port<ref name="ss" />
|-
| Controls || Soft power from the keyboard; front-panel volume buttons; optional infrared remote<ref name="ss" />
|-
| Electrical || 100-240 V AC, 50-60 Hz; 45 W maximum, not including the monitor<ref name="apple" /><ref name="sslc" />
|-
| Size and weight || 10.95 × 41.95 × 32 cm; 7.7 kg (17 lb) without CD-ROM drive, 8.6 kg (19 lb) with<ref name="ss" />
|}


The system bus operates at 33 MHz. The 630 includes 1 MB of ROM.
The Performa 630 Series volume prints the maximum power as "5 W, not including monitor"; Apple's specification sheet and the LC 630/Quadra 630/Performa 640 volume give 45 W.<ref name="ss" /><ref name="apple" /><ref name="sslc" /> The same volume says the external SCSI port takes up to six devices in its specifications and seven in its general information.<ref name="ss" />


== Memory and Storage ==
== Hardware ==
=== RAM Configuration ===
Low End Mac describes the 630 family as the first desktop Macintoshes with an IDE hard drive; the CD-ROM drive, when fitted, is SCSI.<ref name="lem">{{cite web |url=https://lowendmac.com/1994/performa-630/ |title=Performa 630 and LC 630 |publisher=Low End Mac |access-date=2026-09-30}} First desktop Mac with an IDE hard drive; CD-ROM is SCSI; LC and Performa 630 have no FPU, which can be added by replacing the 68LC040 with a 68040; one SIMM socket; PRAM battery 4.5 V alkaline; upgrade paths: PowerPC PDS card and 6300-series logic board.</ref> Apple says IDE drives must be replaced like for like, and that the IDE drive does not affect SCSI IDs or termination.<ref name="ss" /> The logic board slides out of the back once the plastic I/O door is removed, and the drives come out from the front after the drive bezel.<ref name="ss" />
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.<ref>{{cite web |url=https://everymac.com/systems/apple/mac_performa/specs/mac_performa_630.html |title=Macintosh Performa 630 Specs |publisher=EveryMac.com |access-date=2026-02-10}}</ref>


=== Storage Systems ===
The 68LC040 has no FPU; Low End Mac notes that one can be added by fitting a full 68040 in its place.<ref name="lem" /> Apple's upgrades were the Macintosh Processor Upgrade, a PowerPC 601 card with a 256K cache card that lets the machine switch between the 601 and its 68LC040, and the Power Macintosh 5300/6300 logic board upgrade with a 100 MHz 603e.<ref name="ss" />
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.
=== Battery ===
Apple's specification sheet gives the battery as 4.5 V alkaline, and Low End Mac agrees.<ref name="apple" /><ref name="lem" /> The Service Source names no battery part and no test voltage. Its symptom charts tell the technician to "Unplug 5.4 battery, wait 20 seconds, plug in battery, and restart computer"; "5.4" is a misprint for 4.5, which the LC 630 volume prints for the same step.<ref name="ss" /><ref name="sslc" /> Fitting the Processor Upgrade involves lifting the battery and turning it a quarter turn on the board.<ref name="ss" /> Leakage from an alkaline pack is neutralised with a weak acid such as vinegar; see [[Battery Explosion, Capacitor or Corrosion Damage]].


== Display and Graphics ==
=== From Apple's symptom charts ===
The system includes 1 MB of dedicated DRAM for video (non-upgradeable). Supported resolutions:
{| class="wikitable styled-table" style="width:100%; text-align:left;"
* 512×384, 640×480: 16-bit color (thousands of colors)
! Symptom !! Apple's cures, in order
* 800×600, 832×624: 8-bit color (256 colors)
|-
| Eight-tone error chord at start-up || Reseat the SIMMs; replace the SIMMs; replace the logic board<ref name="ss" />
|-
| Four-tone error chord at start-up || Disconnect the hard drive power cable and restart (if normal, test and replace the drive); disconnect the floppy cable and restart (if normal, replace the floppy drive); replace the logic board<ref name="ss" />
|-
| Screen completely dark, fan not running, LED off || Check the power connections; the machine powers on only from the keyboard, so try a known-good keyboard; reseat the logic board; unplug the battery for 20 seconds; check the monitor has power; remove cards and peripherals; replace the power supply, then the logic board<ref name="ss" />
|-
| Menu bar flashes or the system keeps beeping || Check the front-panel buttons are not jammed; reseat the drive bezel and front panel control board<ref name="ss" />
|-
| Crackling sound outside play-through mode || Audio Volume Extension 1.1 or later; replace the logic board<ref name="ss" />
|-
| Rattling at start-up with the Apple External Video Connector || Fold the external video cable away from the fan blades<ref name="ss" />
|}
The start-up chords and Sad Mac codes are on [[Sad Mac Error Codes]].


An LC PDS video card can be added for higher resolutions or a second display.
== Maintenance and repair ==
The Performa 630 has the LC 630's logic board and case, and the LC 630 guides apply:
* [[Macintosh LC 630 General Maintenance]]
* [[Macintosh LC 630 Troubleshooting]]
* [[Macintosh LC 630 Capacitor Replacement Guide]]


== Input/Output and Expansion ==
== Documentation ==
=== Port Configuration ===
* [[Macintosh Performa 630 Series Service Source]]: Apple's service manual for the Performa 630 series.<ref name="ss" />
* 2× ADB ports (keyboard, mouse)
* [[LC 630/Quadra 630/ Performa 640 Service Source]]<ref name="sslc" />
* 2× Serial ports (DIN-8, RS-422)
* [[Macintosh LC 630 and Quadra 630 Developer Note]]
* 1× External SCSI (DB-25)
* 1× DA-15 video output
* 1× Headphone jack (front panel)
* Front panel volume controls


=== Expansion Slots ===
<pdf width="800" height="500">File:Performa 630 series.pdf</pdf>
* 1× LC PDS slot
* 1× Comm slot (modem/ethernet)
* 1× Video slot (video input/output card)
* 1× TV tuner slot


== General Maintenance ==
== Related pages ==
For detailed maintenance procedures including cleaning, PRAM battery replacement, and connector care, refer to the [[Macintosh LC 630 General Maintenance]] page.
 
== Capacitor Replacement Guide ==
Detailed capacitor replacement guidelines for the logic board can be found on the [[Macintosh LC 630 Capacitor Replacement Guide]] page.
 
== Troubleshooting ==
A troubleshooting guide for power issues, startup problems, and Sad Mac errors is available on the [[Macintosh LC 630 Troubleshooting]] page.
 
== Service Documentation ==
 
The official Apple Service Source documentation for this model:
 
<pdf width="800" height="500">File:Performa_630_series.pdf</pdf>
 
== See Also ==
* [[Macintosh LC 630]]
* [[Macintosh LC 630]]
* [[Macintosh Quadra 630]]
* [[Macintosh Quadra 630]]
* [[Macintosh Performa 630CD]]
* [[Macintosh LC 630 DOS Compatible]]
* [[Macintosh Performa 6200CD]], a PowerPC Performa in the same case


== References ==
== References ==
<references />
<references />


{{Navbox-AppleVintage|state=collapsed}}
[[Category:Apple Vintage Computers]]
[[Category:Apple Vintage Computers]]
[[Category:Macintosh Performa]]

Latest revision as of 23:26, 30 September 2026

Macintosh Performa 630
Macintosh Performa 630 (Hellis, Italian Wikipedia, CC BY-SA 3.0)
Specifications
ManufacturerApple Computer, Inc.
TypeDesktop personal computer
ReleasedJuly 1994
Intro priceUS$1,500
CPUMotorola 68LC040 at 33 MHz, no FPU
Memory4 MB on the logic board; one 72-pin SIMM socket (80 ns); 36 MB maximum
Storage250 MB internal IDE hard drive
Display—
Sound8-bit mono input; 8-bit stereo output (16-bit in CD mode)
Graphics1 MB DRAM frame buffer, not expandable; DB-15 port
ROM1 MB
Media1.4 MB Apple SuperDrive (manual insert); bay for an optional AppleCD 300i Plus
Ports / interfaceOne ADB, two RS-232/RS-422 serial (mini DIN-8), SCSI (DB-25), DB-15 video, sound in, sound out front and rear
Expansion114-pin LC processor-direct slot, 112-pin communications slot, 60-pin video-in slot, 10-pin TV tuner connector
Power100-240 V AC, 50-60 Hz, 45 W maximum
Dimensions4.3 × 16.5 × 12.6 in (10.95 × 41.95 × 32 cm)
Weight17 lb (7.7 kg) without CD-ROM drive
OS / FirmwareSystem 7.1.2P to Mac OS 8.1
CodenameCrusader
Model no.M3076 (Gestalt ID 98)

The Macintosh Performa 630 is the consumer version of the Macintosh LC 630 and Macintosh Quadra 630, a low-profile desktop Macintosh with a 33 MHz 68LC040 that Apple introduced in July 1994.[1] Apple's specification sheet dates it 1 July 1994; EveryMac and Wikipedia give 18 July 1994.[1][2][3] The base Performa 630 has no CD-ROM drive; the Performa 630CD adds one. EveryMac lists the 630 at US$1,500 (order number M3423LL/A).[2]

Apple's Macintosh Performa 630 Series Service Source covers the Performa 630, 630CD, 631CD, 635CD, 636, 637CD and 638CD.[4]

Performa 630 series configurations

[edit | edit source]
Configurations in Apple's Service Source
Model RAM Hard drive CD-ROM drive Display Modem Other
Performa 630 4 MB 250 MB None 14-inch Performa Display Plus TelePort
630CD 8 MB 250 MB AppleCD 300i Plus 14-inch Performa Display Plus TelePort
635CD 5 MB 250 MB AppleCD 300i Plus 15-inch Performa Display TelePort
636 4 MB 250 MB None 14-inch Performa Display Plus None
637CD 8 MB 250 MB AppleCD 300i Plus 15-inch Performa Display TelePort TV tuner and video-in cards
638CD 8 MB 250 MB AppleCD 300i Plus 15-inch Performa Display TelePort TV tuner and video-in cards

The manual's title page also names the 631CD but gives no configuration for it.[4] The Performa 640CD DOS Compatible is covered by the LC 630/Quadra 630/Performa 640 Service Source.[5]

Specifications

[edit | edit source]
Performa 630 series specifications (Apple)
Item Specification
Processor Motorola 68LC040 at 33 MHz; 32-bit registers, address and data buses[4]
RAM 4 MB built in; 36 MB maximum on a logic board with one SIMM slot (part 661-0158), 52 MB on a board with two (661-1114: one ordinary slot and one single-sided slot)[4]
ROM 1 MB[4]
Video 1 MB DRAM frame buffer, not expandable; up to 16 bits per pixel on Apple 12- to 14-inch monitors, the 15-inch multiple-scan and VGA (640 × 480); up to 8 bits on the Apple 16-inch and SVGA (800 × 600)[4]
Drives 1.4 MB SuperDrive, manual insert; 250 MB IDE hard drive; optional AppleCD 300i Plus. Internal SCSI hard drives are not supported[4]
Ports Two RS-232/422 serial (mini DIN-8); one external SCSI (DB-25); one ADB (mini DIN-4); DB-15 monitor port on the video daughterboard[4]
Sound 8-bit mono input (microphone or line level, with bias current for an electret microphone); 8-bit stereo output, 16-bit in CD mode, 0.5 V RMS into 39 ohms, front and rear jacks[4]
Slots 114-pin LC processor-direct slot; 112-pin communications slot; 60-pin video-in slot; 10-pin TV tuner port[4]
Controls Soft power from the keyboard; front-panel volume buttons; optional infrared remote[4]
Electrical 100-240 V AC, 50-60 Hz; 45 W maximum, not including the monitor[1][5]
Size and weight 10.95 × 41.95 × 32 cm; 7.7 kg (17 lb) without CD-ROM drive, 8.6 kg (19 lb) with[4]

The Performa 630 Series volume prints the maximum power as "5 W, not including monitor"; Apple's specification sheet and the LC 630/Quadra 630/Performa 640 volume give 45 W.[4][1][5] The same volume says the external SCSI port takes up to six devices in its specifications and seven in its general information.[4]

Hardware

[edit | edit source]

Low End Mac describes the 630 family as the first desktop Macintoshes with an IDE hard drive; the CD-ROM drive, when fitted, is SCSI.[6] Apple says IDE drives must be replaced like for like, and that the IDE drive does not affect SCSI IDs or termination.[4] The logic board slides out of the back once the plastic I/O door is removed, and the drives come out from the front after the drive bezel.[4]

The 68LC040 has no FPU; Low End Mac notes that one can be added by fitting a full 68040 in its place.[6] Apple's upgrades were the Macintosh Processor Upgrade, a PowerPC 601 card with a 256K cache card that lets the machine switch between the 601 and its 68LC040, and the Power Macintosh 5300/6300 logic board upgrade with a 100 MHz 603e.[4]

Battery

[edit | edit source]

Apple's specification sheet gives the battery as 4.5 V alkaline, and Low End Mac agrees.[1][6] The Service Source names no battery part and no test voltage. Its symptom charts tell the technician to "Unplug 5.4 battery, wait 20 seconds, plug in battery, and restart computer"; "5.4" is a misprint for 4.5, which the LC 630 volume prints for the same step.[4][5] Fitting the Processor Upgrade involves lifting the battery and turning it a quarter turn on the board.[4] Leakage from an alkaline pack is neutralised with a weak acid such as vinegar; see Battery Explosion, Capacitor or Corrosion Damage.

From Apple's symptom charts

[edit | edit source]
Symptom Apple's cures, in order
Eight-tone error chord at start-up Reseat the SIMMs; replace the SIMMs; replace the logic board[4]
Four-tone error chord at start-up Disconnect the hard drive power cable and restart (if normal, test and replace the drive); disconnect the floppy cable and restart (if normal, replace the floppy drive); replace the logic board[4]
Screen completely dark, fan not running, LED off Check the power connections; the machine powers on only from the keyboard, so try a known-good keyboard; reseat the logic board; unplug the battery for 20 seconds; check the monitor has power; remove cards and peripherals; replace the power supply, then the logic board[4]
Menu bar flashes or the system keeps beeping Check the front-panel buttons are not jammed; reseat the drive bezel and front panel control board[4]
Crackling sound outside play-through mode Audio Volume Extension 1.1 or later; replace the logic board[4]
Rattling at start-up with the Apple External Video Connector Fold the external video cable away from the fan blades[4]

The start-up chords and Sad Mac codes are on Sad Mac Error Codes.

Maintenance and repair

[edit | edit source]

The Performa 630 has the LC 630's logic board and case, and the LC 630 guides apply:

Documentation

[edit | edit source]

[edit | edit source]

References

[edit | edit source]
  1. ↑ 1.0 1.1 1.2 1.3 1.4 Macintosh Performa 630 and 630CD: Technical Specifications, Apple—link(accessed 2026-09-30) 68LC040 at 33 MHz, no FPU; slots LC, comm, TV, video in; one ADB; DB-15 video; 45 W maximum, 100-240 V; battery type 4.5 V alkaline; 4 MB on the logic board, one 72-pin SIMM slot, 4-36 MB, 80 ns; introduced 7/1/1994; Gestalt ID 98; System 7.1.2P with System Enabler 405; 250 MB IDE; 19 lb.
  2. ↑ 2.0 2.1 Apple Macintosh Performa 630 (CD) (PC) Specs, EveryMac—link(accessed 2026-09-30) Introduced 18 July 1994, discontinued 1 July 1995; 4 MB or 8 MB; 250 MB IDE; order numbers M3423LL/A (no CD-ROM) and M3424LL/A (630CD); US$1,500 and US$2,250; model M3076; Gestalt ID 98; supported system software 7.1.2P to 8.1.
  3. ↑ Macintosh Quadra 630, Wikipedia—link(accessed 2026-09-30) Quadra and Performa 630 introduced 18 July 1994; codename "Crusader" (citing Jim Heid, "Multimedia Mac", Macworld, September 1994, pp. 98-103).
  4. ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 4.25 Apple Computer, Macintosh Performa 630 Series Service Source (1995), File:Performa 630 series.pdf; see Macintosh Performa 630 Series Service Source. PDF page numbers: title p. 1; General Information pp. 3-6; Product Configuration pp. 7-12; Logic Board Diagram p. 15; Specifications pp. 18-28; Symptom Charts pp. 31-46; Processor Upgrade pp. 100-116; Power Macintosh 5300/6300 Logic Board Upgrade pp. 117-118.
  5. ↑ 5.0 5.1 5.2 5.3 5.4 Apple Computer, LC 630/Quadra 630/Performa 640 Service Source, File:Quadra.lc 630.performa 640.pdf; see LC 630/Quadra 630/ Performa 640 Service Source. Specifications chapter.
  6. ↑ 6.0 6.1 6.2 Performa 630 and LC 630, Low End Mac—link(accessed 2026-09-30) First desktop Mac with an IDE hard drive; CD-ROM is SCSI; LC and Performa 630 have no FPU, which can be added by replacing the 68LC040 with a 68040; one SIMM socket; PRAM battery 4.5 V alkaline; upgrade paths: PowerPC PDS card and 6300-series logic board.


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