
UNIDENTIFIED

A-B 340SX / A-B 341SX

Processor         AM386SX/80386SX
Processor Speed   25/33/40MHz
Chip Set          ALI
Max. Onboard DRAM 16MB
Cache             None
BIOS              AMI
Dimensions        220mm x 170mm
I/O Options       None
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            J4       Turbo switch                J8

  Reset switch                J6       Turbo LED                   J8

  Speaker                     J7       Power LED & keylock         J9

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     NPU synchronous with CPU                 JP2           pins 1 & 2
                                                              closed

      NPU asynchronous with CPU                JP2           pins 2 & 3
                                                              closed

     Factory configured - do not alter        JP3             Open

     Monitor type select color                JP4           pins 2 & 3
                                                              closed

      Monitor type select monochrome           JP4           pins 1 & 2
                                                              closed

     Parity check enabled                     JP6             Open

      Parity check disabled                    JP6            Closed

     Factory configured - do not alter        JP7             Open

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

     512KB        (2) 256K x 9       NONE

      1MB         (2) 256K x 9   (2) 256K x 9

      2MB         (2) 1M x 9         NONE

      4MB         (2) 1M x 9      (2) 1M x 9

      8MB         (2) 4M x 9         NONE

      16MB        (2) 4M x 9      (2) 4M x 9

                       BUS SPEED SELECT

      CPU Speed              JP1                  JP5

        25MHz          pins 1 & 2 closed   pins 2 & 3 closed

        33MHz          pins 2 & 3 closed   pins 2 & 3 closed

        40MHz          pins 1 & 2 closed   pins 1 & 2 closed

