Please consider a donation to the Higher Intellect project. See https://preterhuman.net/donate.php or the Donate to Higher Intellect page for more info.

Macintosh II

From Higher Intellect Wiki
Jump to navigation Jump to search
Mac II.jpg
Mac-II-front-with-sreen.jpg
MacII.jpg

Released in 1987 and powered by a Motorola 68020 CPU clocked at 16MHz.

Expansion

The Macintosh II offered six NuBus slots, one of which would have been occupied by a graphics card.

ROM, RAM, FPU & PMMU Configurations

                           MACINTOSH II
                ROM, RAM, FPU, & PMMU CONFIGURATIONS
------------------------------------------------------------------
                             ROM PART NUMBERS

SOCKET DESIGNATION     ORIGINAL              FDHD UPGRADE
UF11 (ROM3)            342-0108-B            342-0642-C

UF12 (ROM4)            342-0107-B            342-0641-C

UD11 (ROM5)            342-0106-B            342-0640-C

UD12 (ROM6)            342-0105-B            342-0639-C

UI10 (IWM)             344S0043A             343S0062A
------------------------------------------------------------------
          FPU & PMMU UPGRADES (NOT PART OF THE FDHD UPGRADE)

SOCKET DESIGNATION     ORIGINAL               UPGRADE
UG13 (68851)           343-0002-1 (AMU)       MC68851RC16A (PMMU)

UG11 (68881)           MC68881RC16B (FPU)     MC68882RC16A (FPU)
------------------------------------------------------------------
                     RAM CONFIGURATIONS

Each Bank must have 4 identical SIMMs.

TOTAL  BANK A     BANK B   PMMU & MODE 32   FDHD UPGRADE
RAM    SIMMs      SIMMs     REQUIRED?        REQUIRED?
  1MB  0.25MB                   N               N
  2MB  0.25MB     0.25MB        N               N
  4MB     1MB                   N               N
  5MB     1MB     0.25MB        N               N
  8MB     1MB        1MB        N               N
 16MB                4MB PAL    Y               N
 17MB  0.25MB        4MB PAL    Y               N
 20MB     1MB        4MB PAL    Y               N
 32MB     4MB PAL    4MB PAL    Y               Y
 64MB               16MB PAL    Y               N
 65MB  0.25MB       16MB PAL    Y               N
 68MB     1MB       16MB PAL    Y               N
 80MB     4MB PAL   16MB PAL    Y               Y
128MB    16MB PAL   16MB PAL    Y               Y
------------------------------------------------------------------
05/14/00 1st rev
06/08/00 added RAM configurations

gamba

ROM Info

The 256K Macintosh II ROM has been written to support all of the previously mentioned devices and features. The ROM also includes all packages available on the Macintosh Plus. The following features are among those that have been added to the ROM:

  • Color Quickdraw, and color support in other Managers
  • Apple Desktop Bus support
  • More fonts - Monaco 9, Chicago 12, Geneva 9 and 12
  • Slot Manager to handle NuBus card communication
  • 4 Voice Sound Manager
  • SCSI Driver

Schematics

MacIIsch.GIF

Related Articles

See Also