
MAGITRONICS

A-B345G/A-B345H

Processor         80386DX
Processor Speed   40MHz
Chip Set          OPTi
Max. Onboard DRAM 32MB
SRAM Cache        64/128/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery             J1       Turbo LED                 JP12

  Power LED & keylock         J18       Turbo switch              JP11

  Speaker                     J19       Reset switch               SW1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     ISA bus clock iOSC/4 (10MHz)             JP2            closed

      ISA bus clock iOSC/5 (8MHz)              JP2             open

     CMOS memory normal operation             J3            pins 2 & 3
                                                              closed

      CMOS memory clear                        J3            pins 1 & 2
                                                              closed

     Monitor type select color                J4             closed

      Monitor type select monochrome           J4              open

                         SRAM JUMPER CONFIGURATION

  Size       JP6        JP8        JP9       JP10      JP17       JP18

  64KB       open       open       open     pins 2     open       open
                                             & 3

  128KB     closed     closed      open     pins 1     open      closed
                                             & 2

  256KB     closed     closed     closed    pins 2    closed     closed
                                             & 3

                    SRAM CONFIGURATION

     Size          Cache         Location         TAG

     64KB        (8) 8K x 8    Banks 0 & 1    (1) 8K x 8

     128KB      (4) 32K x 8       Bank 0      (1) 8K x 8

     256KB      (8) 32K x 8    Banks 0 & 1    (1) 32K x 8

              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

      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

