Macintosh Performa 430

Macintosh Performa 430

Macintosh Performa 400, which uses the same case as the Performa 430. Photo: Akbkuku, Wikimedia Commons, CC BY 4.0
Specifications
Manufacturer	Apple Computer, Inc.
Type	Desktop personal computer
Released	April 12, 1993 (Apple); October 18, 1993 (EveryMac)
Discontinued	November 1, 1993 (EveryMac)
Intro price	US$1,500 (EveryMac)
CPU	Motorola 68030 at 16 MHz
Memory	4 MB on board, expandable to 10 MB
Storage	120 MB SCSI hard drive; 1.4 MB SuperDrive
Display	External; one VRAM SIMM
Sound	8-bit mono
ROM	512 KB
Dimensions	7.7 × 31.0 × 38.2 cm (3.0 × 12.2 × 15.0 in)
Weight	4.0 kg (8.8 lb)
OS / Firmware	System 7.1P2 – Mac OS 7.6.1
Model no.	M1700

The Macintosh Performa 430 is a desktop Macintosh sold by Apple through consumer retail shops. It is the Macintosh LC II under a Performa name; the Performa 400, 405, 410 and 430 are the same hardware. In Apple's service manual the 430 differs from the Performa 405 only in its 120 MB hard drive and its bundled monitor, the Performa Display Plus.

Apple gives the introduction date as April 12, 1993, with System 7.1P2 as the original system software. EveryMac gives October 18, 1993 for the introduction and November 1, 1993 for the discontinuation, a US price of US$1,500, order number M1721LL/A and model number M1700.

Specifications

Apple's figures

Item	Figure
Processor	Motorola 68030 at 16 MHz; 16-bit data bus; no FPU socket
RAM	4 MB on board; two 30-pin SIMM sockets, filled in pairs with 100 ns 1, 2 or 4 MB SIMMs; 10 MB maximum
ROM	512K
VRAM	One VRAM SIMM socket: 256K gives 512 × 384 at 8-bit and 640 × 480 at 4-bit; 512K gives 16-bit and 8-bit
Floppy drive	Apple SuperDrive, 1.4 MB (auto-inject)
Hard drive at introduction	120 MB SCSI
Ports	One ADB, two serial (printer and modem, mini DIN-8), SCSI DB-25, DB-15 video, sound in and out
Expansion	One 96-pin processor-direct slot for 020/030 cards
Electrical	100–240 VAC, 50–60 Hz, automatically configured; 50 W maximum excluding monitor (Performa 400 figure)
Size and weight	3.0 × 12.2 × 15.0 in (7.7 × 31.0 × 38.2 cm); 8.8 lb (4.0 kg)

Sources: Apple's technical specifications and the Performa 400 Series Service Source, pp. 3–15. The Service Source prints one maximum-power figure for the 400, 405, 410 and 430, under "Performa 400". Apple's technical specifications give the input range as 90–240 V; the Service Source gives 100–240 VAC. Both agree that the supply configures itself, so there is no voltage selector.

The machine accepts 12 MB (4 MB on board plus two 4 MB SIMMs) but addresses only 10 MB. With 4 MB SIMMs in both sockets, the lower 2 MB of the on-board RAM cannot be addressed.

The Service Source lists a 512K VRAM SIMM for the 400, 405, 410 and 430 (p. 6); EveryMac says the 430 shipped with 256 KB. Check the SIMM fitted before assuming the colour depth.

The PRAM battery is a 3.6 V lithium cell, Apple part 742-0011; Apple says to replace it below 3.0 V. The power supply is part 661-1733, shared with the whole LC family.

Known faults

• Leaking surface-mount electrolytic capacitors on the logic board and in the power supply. The LC II board list is on Macintosh LC II Capacitor Replacement Guide.
• A flat PRAM battery: Apple's charts for this family put "Check batteries" first for "No video" and in the no-power entries.
• The 10 MB ceiling above is normal behaviour, not a memory fault.

See Macintosh Performa 430 Troubleshooting and Macintosh LC II Troubleshooting.

Service documentation

Apple covers the Performa 430 in the Macintosh Performa 400 Series Service Source, and the same board under its LC II name in the Macintosh LC Series/Quadra 605 Service Source.

Related pages

• Macintosh LC II
• Macintosh Performa 430 Troubleshooting
• Macintosh LC II General Maintenance
• Macintosh LC II Capacitor Replacement Guide
• Macintosh Performa 400
• Macintosh Performa 405
• Macintosh Performa 410