MAGITRONICS

A-B341/A-B341Q

Processor         80386DX
Processor Speed   33/40MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
SRAM Cache        32/64/128/256KB
BIOS              AMI
Dimensions        330.2mm x 218.4mm
I/O Options       32-bit proprietary expansion slot
NPU Options       80387DX/3167

[Image]

                                CONNECTIONS

  Purpose              Location      Purpose                   Location

  External battery        J10        32-bit proprietary           S1
                                     expansion slot

  Power LED &             J23        Reset switch                SW1
  keylock

  Speaker                 J24        Turbo switch                SW2

  Turbo LED               JP4

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                JP1            closed

      Monitor type select monochrome           JP1             open

  »   CMOS memory normal operation             JP2           pins 2 & 3
      (Internal battery)                                      closed

      CMOS memory normal operation             JP2             open
      (external battery)

      CMOS memory clear                        JP2           pins 1 & 2
                                                              closed

      Bus speed select iOSC/8                  JP3            closed
      (CPU=40MHz)

      Bus speed select iOSC/6                  JP3             open
      (CPU=33MHz)

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

            CACHE CONFIGURATION

     Size          Bank 0        Bank 1

     32KB        (4) 8K x 8       NONE

     64KB        (4) 8K x 8    (4) 8K x 8

     128KB       (4) 32K x 8      NONE

     256KB       (4) 32K x 8   (4) 32K x 8

                        CACHE JUMPER CONFIGURATION

  Size      JP5       JP6        JP7        JP8         JP9       JP10

  32KB     1 & 2     1 & 2      1 & 2       open       2 & 3      2 & 3

  64KB     2 & 3     1 & 2      1 & 2       open       2 & 3      1 & 2

  128KB    2 & 3     1 & 2      2 & 3      closed      2 & 3      1 & 2

  256KB    2 & 3     2 & 3      2 & 3      closed      1 & 2      1 & 2

  Notes:Pins designated should be in the closed position.

  Jumper J3 is present only on earlier versions of the main board