
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

