
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

