Macintosh II

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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

Schematics

MacIIsch.GIF

Related Articles

See Also



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