
ADVANCED INTEGRATION RESEARCH, INC.

AIR486EI

Processor             80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed       20/25/33/50(internal)/50/66(internal)MHz
Chip Set              SIS
Max. Onboard DRAM     256MB
Cache                 64/128/256/512KB
BIOS                  AMI/Phoenix
Dimensions            221mm x 332mm
I/O Options           32-bit VESA local bus slots (3)
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                Location

  Reset switch               J6        Turbo switch              J22

  Speaker                    J8        Turbo LED             J24/pins 1&2

  Power LED & keylock        J9        32-bit VESA local       S1 - S3
                                       bus slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color                J7             Closed

      Monitor type select monochrome           J7              Open

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1         Bank 2         Bank 3

      1MB        (1) 256K x        NONE           NONE           NONE
                     36

      2MB        (1) 512K x        NONE           NONE           NONE
                     36

      2MB        (1) 256K x     (1) 256K x        NONE           NONE
                     36             36

      4MB        (1) 256K x     (1) 256K x     (1) 512K x        NONE
                     36             36             36

      4MB        (1) 512K x        NONE        (1) 512K x        NONE
                     36                            36

      4MB       (1) 1M x 36        NONE           NONE           NONE

      6MB        (1) 256K x     (1) 256K x    (1) 1M x 36        NONE
                     36             36

      6MB        (1) 512K x        NONE       (1) 1M x 36        NONE
                     36

      8MB       (1) 1M x 36    (1) 1M x 36        NONE           NONE

      8MB       (1) 2M x 36        NONE           NONE           NONE

     10MB        (1) 256K x     (1) 256K x    (1) 1M x 36    (1) 1M x 36
                     36             36

     10MB        (1) 512K x        NONE       (1) 1M x 36    (1) 1M x 36
                     36

     12MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     16MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     16MB       (1) 2M x 36        NONE       (1) 2M x 36        NONE

     16MB       (1) 4M x 36        NONE           NONE           NONE

     18MB        (1) 512K x        NONE       (1) 4MB x 36       NONE
                     36

     18MB        (1) 256K x     (1) 256K x    (1) 4MB x 36       NONE
                     36             36

     20MB       (1) 1M x 36    (1) 4M x 36        NONE           NONE

     24MB       (1) 1M x 36    (1) 1M x 36    (1) 4M x 36        NONE

     32MB       (1) 4M x 36    (1) 4M x 36        NONE           NONE

     36MB       (1) 1M x 36    (1) 4M x 36    (1) 4M x 36        NONE

     40MB       (1) 1M x 36    (1) 1M x 36    (1) 4M x 36    (1) 4M x 36

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     64MB       (1) 16M x 36       NONE           NONE           NONE

     128MB      (1) 16M x 36   (1) 16M x 36       NONE           NONE

     192MB      (1) 16M x 36   (1) 16M x 36   (1) 16M x 36       NONE

     256MB      (1) 16M x 36   (1) 16M x 36   (1) 16M x 36   (1) 16M x 36

              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

     512KB        (4) 128K x 8       NONE

                        CACHE JUMPER CONFIGURATION

  Size     JC1     JC2     JC3      JC4     JC5     JC6     JC7     JP9

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

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

  256KB    2 & 3   2 & 3   2 & 3   1 & 2   1 & 2   2 & 3   2 & 3   4 & 5

  512KB    2 & 3   2 & 3   2 & 3   2 & 3   2 & 3   2 & 3   2 & 3   1 & 2

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type                J1                J2                 J3

      80486SX             Open              Open            pins 2 & 3
                                                              closed

     ODP486SX            Closed          pins 2 & 3         pins 1 & 2
                                           closed             closed

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

      80486DX            Closed          pins 1 & 2         pins 2 & 3
                                           closed             closed

     80486DX2            Closed          pins 1 & 2         pins 2 & 3
                                           closed             closed

                     CPU SPEED CONFIGURATION

   Speed       JO1        JO2        JO3        JO4       JL2

   20MHz      Open      Closed     Closed     Closed      Open

   25MHz     Closed      Open      Closed     Closed      Open

   33MHz     Closed     Closed      Open      Closed      Open

  50iMHz     Closed      Open      Closed     Closed      Open

   50MHz      Open       Open       Open       Open      Closed

  66iMHz     Closed     Closed      Open      Closed      Open

