ADVANCED INTEGRATION RESEARCH, INC.

486US

Processor         80486SX/80487SX/80486DX
Processor Speed   20/25/33/50MHz
Chip Set          UMC
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              AMI/Phoenix
Dimensions        330mm x 218mm
I/O Options       32-bit external memory card slot
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  External battery           J1        Turbo switch                J6

  Power LED & keylock        J3        Turbo LED                   J7

  Speaker                    J4        32-bit external            JME1
                                       memory card

  Reset switch               J5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color               JP10            Closed

      Monitor type select monochrome          JP10             Open

  »   CMOS memory normal operation            JP19           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP19           pins 2 & 3
                                                              closed

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

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

      16MB        (4) 4M x 9         NONE

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

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

            CACHE CONFIGURATION

     Size          Bank 0        Bank 1

     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      JP13      JP14      JP16      JP17      JP18

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

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

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

  Note:Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

      Type           JP1            JP2             JP3           JP8

    80486SX          Open        pins 2 & 3      pins 3 & 4       Open
                                   closed         closed

    80487SX         Closed       pins 1 & 2      pins 2 & 3       Open
                                   closed         closed

    80486DX         Closed       pins 1 & 2      pins 1 & 2       Open
                                   closed         closed