Editing Macintosh SE/30

{{Infobox computer
| name         = Macintosh SE/30
| image        = [[File:MacintoshSE30.jpg|250px]]
| caption      = Macintosh SE/30
| manufacturer = Apple Computer, Inc.
| type         = Personal computer
| release_date = 19 January 1989
| discontinued = 21 October 1990
| price        = US$4,400 (US$4,900 with hard disk)
| cpu          = Motorola 68030 @ 15.667 MHz
| fpu          = Motorola 68882
| memory       = 1 or 4 MB, expandable to 32 MB (Apple); 128 MB with uncertified 16 MB SIMMs
| rom          = 256 KB
| graphics     = 512 × 342 monochrome; separate 64 KB video RAM and 8 KB video declaration ROM
| 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
| ports        = 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           = System 6.0.3 – System 7.5.5
| predecessor  = [[Macintosh SE]]
| successor    = [[Macintosh Classic II]]
| codename     = Green Jade, Fafnir, Oreo
| model        = 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.<ref name="lem">Low End Mac, ''Mac SE/30'' tech specs (secondary source, used for dates, prices, codenames and the 128 MB memory ceiling).</ref><ref name="ssse30">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]].</ref>

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 ==

Apple's own specification pages.<ref name="ssse30" />

<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:85%;"
! 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 ==

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.<ref name="gtmfh">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).</ref>

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 ==

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]].<ref name="gtmfh" /><ref name="ssse30" /><ref name="lem" />

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.<ref name="lem" />

== Service manual and schematics ==

=== Apple service manual ===
<pdf width="800" height="500">File:Macintosh SE30.pdf</pdf>

All of the Apple service manuals are on the [[:Category:Apple Service Source|Apple Service Source]] page.

=== Logic board and analogue board ===

{| class="wikitable" style="width:50%; text-align:center;"
|+'''Macintosh SE/30 PCB images'''
|-
! style="background-color:#f2f2f2; width:30%;"| Logic board
! style="background-color:#f2f2f2; width:30%;"| Analogue board
|-
| [[File:MacintoshSE30_LogicBoard.jpg|thumb|center|250px|Macintosh SE/30 logic board]][[File:MacintoshSE30 LogicBoard Schematic.pdf|center|thumb|Macintosh SE/30 logic board schematic]]
| [[File:MacintoshSE30 AnalogBoard.png|center|thumb|250x250px|Macintosh SE/30 analogue board]][[File:Fan, CRT Board.jpg|center|thumb|Fan and CRT 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.<ref name="redraw">''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]].</ref>

== Maintenance, capacitors and troubleshooting ==

* '''[[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.<ref name="ssse30" />

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.<ref name="dms">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]].</ref> See [[Sad Mac Error Codes]] and the [[Sad Mac Decoder]].

== Related pages ==
* [[Macintosh SE]] — the 68000 machine it is built on
* [[Macintosh Classic II]] — Apple's eventual replacement for it
* [[Macintosh Plus]]

== References ==
<references />

[[Category:Apple Vintage Computers]]

{{Navbox-AppleVintage|state=collapsed}}