UNIDENTIFIED

LM403

Processor         80286
Processor Speed   16/20MHz
Chip Set          Acer
Max. Onboard DRAM 4MB
Cache             None
BIOS              AMI
Dimensions        240mm x 218mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Power LED & keylock         J1       Reset switch                J4

  Speaker                     J2       Turbo switch                J5

  Turbo LED                   J3       External battery            JP5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   I/O bus speed select ATCLK/4            JP2              Open

      I/O bus speed select ATCLK/2            JP2             Closed

  »   Parity disabled                         JP3             Closed

      Parity enabled                          JP3              Open

  »   Monitor type select monochrome          JP4           pins 1 & 2
                                                              closed

      Monitor type select color               JP4           pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

   Size     Bank 0     Parity 0   Bank 1     Parity 1   Bank 2    Bank 3

  512KB       (4)        (2)       NONE       NONE       NONE      NONE
             44256      41256

  512KB      NONE       NONE       NONE       NONE        (2)      NONE
                                                        256K x
                                                          9

   1MB        (4)        (2)        (4)        (2)       NONE      NONE
             44256      41256      44256      41256

   1MB       NONE       NONE       NONE       NONE        (2)       (2)
                                                        256K x     256K x
                                                          9          9

   2MB       NONE       NONE       NONE       NONE      (2) 1M     NONE
                                                         x 9

   4MB       NONE       NONE       NONE       NONE      (2) 1M     (2) 1M
                                                         x 9        x 9