Macintosh Performa 400
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| Macintosh Performa 400. Photo: Akbkuku, Wikimedia Commons, CC BY 4.0 | |
| Specifications | |
|---|---|
| Manufacturer | Apple Computer, Inc. |
| Type | Desktop personal computer |
| Released | September 14, 1992 |
| Discontinued | October 18, 1993 |
| Intro price | US$1,180 |
| CPU | Motorola 68030 at 16 MHz |
| Memory | 4 MB on board, expandable to 10 MB |
| Storage | 40 or 80 MB SCSI hard drive; 1.4 MB SuperDrive |
| Display | External; 512 KB VRAM SIMM |
| Sound | 8-bit mono |
| 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 7.0.1P – Mac OS 7.6.1 |
| Successor | Performa 410 |
| Model no. | M1700 |
The Macintosh Performa 400 is a desktop Macintosh sold by Apple through consumer retail shops. Apple gives its introduction date as September 14, 1992.[1] It is the Macintosh LC II under a Performa name, with bundled software; the Performa 400, 405, 410 and 430 are the same hardware.[2] It was one of the first three Performa models, with the Performa 200 and 600.[2]
EveryMac gives the US price as US$1,180 and the discontinuation date as October 18, 1993.[3] Apple order numbers: M1885LL/A and M1886LL/A, which differed only in the software bundle.[3]
Specifications
[edit | edit source]| Item | Figure |
|---|---|
| Processor | Motorola 68030 at 16 MHz; 16-bit data path; 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 (auto-inject) |
| Hard drive at introduction | 40 or 80 MB |
| Ports | One ADB, two serial (printer and modem), SCSI DB-25, DB-15 video, sound in and out |
| Expansion | One 96-pin LC processor-direct slot |
| Electrical | 100–240 VAC, 50–60 Hz, automatically configured; 50 W maximum excluding monitor |
Sources: Apple's technical specifications and the Performa 400 Series Service Source, pp. 3–14.[1][4] Apple's technical specifications give the input range as 90–240 V; the Service Source gives 100–240 VAC.
The machine accepts 12 MB (4 MB on board plus two 4 MB SIMMs) but addresses only 10 MB. Apple explains that with 4 MB SIMMs in both sockets the lower 2 MB of the on-board RAM cannot be addressed.[1][4]
EveryMac gives 512 KB of VRAM as shipped.[3][4]
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.[1][4]
Known faults
[edit | edit source]- 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.[4]
- The 10 MB ceiling above is normal behaviour, not a memory fault.
See Macintosh Performa 400 Troubleshooting and Macintosh LC II Troubleshooting.
Service documentation
[edit | edit source]Apple covers the Performa 400 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.[4]
Related pages
[edit | edit source]- Macintosh LC II
- Macintosh Performa 400 Troubleshooting
- Macintosh LC II General Maintenance
- Macintosh LC II Capacitor Replacement Guide
- Macintosh Performa 405
- Macintosh Performa 410
- Macintosh Performa 430
References
[edit | edit source]- ↑ 1.0 1.1 1.2 1.3 Apple, "Macintosh Performa 400: Technical Specifications".
- ↑ 2.0 2.1 Low End Mac, "Apple's Performa Line, 1992 to 1997".
- ↑ 3.0 3.1 3.2 EveryMac, "Macintosh Performa 400 Specs".
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 Apple Computer, Service Source: Macintosh Performa 400 Series (1995), File:Performa 400 series.pdf; see Macintosh Performa 400 Series Service Source. Page numbers are PDF pages.