Macintosh SE/30
 | |
| Macintosh SE/30 | |
| Specifications | |
|---|---|
| Manufacturer | Apple Computer, Inc. |
| Type | Personal computer |
| Released | 19 January 1989 |
| Discontinued | 21 October 1990 |
| Intro price | US$4,400 (US$4,900 with hard disk) |
| CPU | Motorola 68030 @ 15.667 MHz |
| Memory | 1 or 4 MB, expandable to 32 MB (Apple); 128 MB with uncertified 16 MB SIMMs |
| Storage | 1.4 MB floppy drive; optional 40 or 80 MB internal SCSI hard disk |
| Display | 9-inch monochrome CRT, 512 × 342 pixels |
| Sound | Apple Sound Chip: four-voice wavetable, stereo sampling |
| Graphics | 512 × 342 monochrome; separate 64 KB video RAM and 8 KB video declaration ROM |
| ROM | 256 KB |
| FPU / coprocessor | Motorola 68882 |
| Ports / interface | 2 × ADB; DB-19 external floppy; DB-25 SCSI; 2 × RS-232/RS-422 serial; stereo sound out |
| Expansion | 030 direct slot, 120-pin Euro-DIN, full 32-bit address and data |
| Power | 120–240 V AC, automatically configured, 48–62 Hz, 75 W maximum |
| Dimensions | 13.6 in H × 9.6 in W × 10.9 in D (34.5 × 24.4 × 27.6 cm) |
| Weight | 21.5 lb (9.75 kg) |
| OS / Firmware | System 6.0.3 – System 7.5.5 |
| Predecessor | Macintosh SE |
| Successor | Macintosh Classic II |
| Codename | Green Jade, Fafnir, Oreo |
| Model no. | M5119 |
The Macintosh SE/30 was introduced on 19 January 1989: a Macintosh IIx in a compact case. It is by a wide margin the most capable of the compact Macintoshes — a 68030 with a memory management unit, a 68882 floating-point unit as standard, eight SIMM sockets, a full 32-bit processor-direct slot and the first 1.4 MB SuperDrive fitted to a compact.[1][2]
It is also the compact most likely to arrive dead, because of the surface-mount capacitors on its logic board. Read Macintosh SE/30 General Maintenance before powering up a machine that has been in storage.
Specifications
[edit | edit source]Apple's own specification pages.[2]
| Item | Specification |
|---|---|
| CPU | Motorola 68030, 15.667 MHz, 256-byte instruction and data caches, built-in paged memory management unit |
| Coprocessor | Motorola 68882 floating-point unit |
| RAM | 1 or 4 MB, expandable to 32 MB |
| ROM | 256 KB |
| PRAM | 256 bytes, CMOS custom chip with a long-life lithium battery |
| Floppy | 1.4 MB |
| Hard disk | Optional 40 or 80 MB |
| Expansion | One 030 direct slot, full 32-bit address and data lines, 120-pin Euro-DIN |
| SCSI | 50-pin internal, DB-25 external |
| ADB | Two ports |
| Serial | Two RS-232/RS-422 ports, 230.4 kbaud maximum |
| Sound | Apple Sound Chip (ASC): four-voice wavetable synthesis and a stereo sampling generator; mixed to mono at the internal speaker |
| Video | 9-inch diagonal, 512 × 342 bit-mapped. Colour QuickDraw in ROM supports grey-scale and colour cards in the 030 slot |
| Line voltage | 120–240 V AC RMS, automatically configured |
| Frequency | 48–62 Hz, single phase |
| Maximum power | 75 W |
| Dimensions | 13.6 × 9.6 × 10.9 in (34.5 × 24.4 × 27.6 cm) |
| Weight | 21.5 lb (9.75 kg) |
Video: why the SE/30 is different
[edit | edit source]The screen looks like a Macintosh SE screen but the hardware behind it is not. The SE/30's logic board carries a separate 64 KB video display RAM and a separate 8192-byte video declaration ROM, mapped at $FE00 0000 — the address space used by expansion slot $E in the Macintosh II family. Apple calls this pseudo-slot video: the built-in display pretends to be a Macintosh II video card so that the SE/30 can share the system ROM used by the other 68030 machines.[3]
The practical consequence: no main memory is reserved for the display. The video buffer is independent of the SIMMs, so no memory configuration is better or worse for video.
Memory
[edit | edit source]Eight 30-pin SIMM sockets in two banks of four, 120 ns or faster, eight chips per module, banks filled completely, larger modules in bank A. Apple's published maximum is 32 MB; 16 MB modules take it to 128 MB but were never certified by Apple. Full rules: Macintosh SE/30 Memory Upgrade Guide.[3][2][1]
Anything above 8 MB requires 32-bit addressing, which the SE/30's ROM does not provide by itself — Mode32 or an equivalent enabler is needed.[1]
Service manual and schematics
[edit | edit source]Apple service manual
[edit | edit source]
All of the Apple service manuals are on the Apple Service Source page.
Logic board and analogue board
[edit | edit source]| Logic board | Analogue board |
|---|---|
 |
  |
A KiCad recreation of Apple engineering drawing 050-0253-01, released under the MIT licence, is hosted here and is the most usable source for tracing corroded traces: File:Macintosh SE30 Logic Board Schematic Redraw 050-0253-01.pdf. Its pin matrices identify the major devices — UK8 CPU, UI5 FPU, UI8 GLUE, UK12/UK11 VIA1/VIA2, UJ11 SWIM, UI12 SCSI, UG12 SCC, UK6 video ROM, UC6/UC7 VRAM, J13 PDS.[4]
Maintenance, capacitors and troubleshooting
[edit | edit source]- Macintosh SE/30 General Maintenance — the surface-mount capacitor problem, the 3.6 V lithium cell and its 2.8 V threshold, the chip location map.
- Macintosh SE/30 Capacitor Replacement Guide — values and positions.
- Macintosh SE/30 Troubleshooting — symptom-led diagnosis, including Simasimac.
- Macintosh SE/30 Reloaded Logic Board — the modern recreation board.
- CRT Discharge Procedure and Retrobrite.
There is no power-supply voltage adjustment on the SE/30. Apple's Adjustments chapter covers the yoke and the video only, and publishes no rail tolerances.[2]
A Sad Mac showing error code 00000001 over any value points at the ROM SIMM rather than at RAM — reseat it before suspecting anything else.[5] See Sad Mac Error Codes and the Sad Mac Decoder.
Related pages
[edit | edit source]- Macintosh SE — the 68000 machine it is built on
- Macintosh Classic II — Apple's eventual replacement for it
- Macintosh Plus
References
[edit | edit source]- ↑ 1.0 1.1 1.2 Low End Mac, Mac SE/30 tech specs (secondary source, used for dates, prices, codenames and the 128 MB memory ceiling).
- ↑ 2.0 2.1 2.2 2.3 Apple Computer, Macintosh SE/30 Service Source — Specifications, Troubleshooting, Take Apart, Adjustments and Additional Procedures chapters. Hosted on this wiki: File:Macintosh se.30.pdf.
- ↑ 3.0 3.1 Apple Computer, Guide to the Macintosh Family Hardware, 2nd edition, Addison-Wesley, 1990 — Chapter 12 "Displays", pp. 408–409 (pseudo-slot video, 64 KB video RAM, declaration ROM) and Chapter 5 "Memory", pp. 208–211 (SIMM rules).
- ↑ Macintosh SE/30 Logic Board Schematic Redraw, KiCad recreation of Apple engineering drawing 050-0253-01, MIT licence. Hosted on this wiki: File:Macintosh SE30 Logic Board Schematic Redraw 050-0253-01.pdf.
- ↑ Larry Pina, The Dead Mac Scrolls, Peachpit Press, 1992, "Mac SE and SE/30" chapter. Hosted on this wiki: File:The Dead Mac Scrolls 1992.pdf.