ADVANCED INTREGRATION RESEARCH, INC.

486UF

Processor        80486SX/80487SX/80486DX/80486DX2
Processor Speed  20/25/33/40/50(internal)/50/66(internal)MHz
Chip Set         UMC
Max. onboard DRAM32MB
Cache            64/128/256KB
BIOS             AMI
Dimensions       330mm x 220mm
I/O Options      32-bit external memory card
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 memory card         S1

  Reset                        J5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CPU speed select iOSC/2                  JP8            Closed

      CPU speed select iOSC/1                  JP8             Open

  »   Monitor type select color               JP10             Open

      Monitor type select monochrome          JP10            Closed

  »   CMOS memory normal operation            JP19             Open

      CMOS memory clear                       JP19            Closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (4) 256K x 9      NONE           NONE           NONE

     2MB        (4) 256K x 9  (4) 256K x 9       NONE           NONE

     3MB        (4) 256K x 9  (4) 256K x 9   (4) 256K x 9       NONE

     4MB        (4) 256K x 9  (4) 256K x 9   (4) 256K x 9   (4) 256K x 9

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

     5MB        (4) 256K x 9   (4) 1M x 9        NONE           NONE

     6MB        (4) 256K x 9  (4) 256K x 9    (4) 1M x 9        NONE

     7MB        (4) 256K x 9  (4) 256K x 9   (4) 256K x 9    (4) 1M x 9

     8MB         (4)1M x 9     (4)1M x 9         NONE           NONE

     9MB        (4) 256K x 9   (4) 1M x 9     (4) 1M x 9        NONE

     10MB       (4) 256K x 9  (4) 256K x 9    (4) 1M x 9     (4) 1M x 9

     12MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9        NONE

     16MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

     16MB       (4) 4M x 9        NONE           NONE           NONE

     20MB       (4) 1M x 9     (4) 4M x 9        NONE           NONE

     24MB       (4) 1M x 9     (4) 1M x 9     (4) 4M x 9        NONE

     28MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9     (4) 4M x 9

     32MB        (4)4M x 9     (4)4M x 9         NONE           NONE

     36MB       (4) 1M x 9     (4) 4M x 9     (4) 4M x 9        NONE

     40MB       (4) 1M x 9     (4) 1M x 9     (4) 4M x 9     (4) 4M x 9

     48MB       (4) 4M x 9     (4) 4M x 9     (4) 4M x 9        NONE

     64MB       (4) 4M x 9     (4) 4M x 9     (4) 4M x 9     (4) 4M x 9

  Note:Banks 2 & 3 are located on the optional external memory card
  inserted into S1.

                          CPU TYPE CONFIGURATION

         CPU                JP1              JP2                JP3

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

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

     80486DX/DX2          Closed          pins 1 & 2         pins 1 & 2
                                            closed            closed

            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       pins 1 &     pins 1 &    pins 2 &    pins 1 &   pins 1 & 2
                  2            2           3           2

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

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

  Note:Pins designated should be in the closed position.