ADVANCED INTREGRATION RESEARCH, INC.

486UL REV. 1.0

Processor     80486SX/80487SX/80486DX/ODP486SX/80486DX2/ODP586SX
Processor     20/25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set      UMC
Max. onboard  32MB
DRAM
SRAM Cache    64/128/256KB
BIOS          AMI
Dimensions    330mm x 220mm
I/O Options   32-bit external memory card, 32-bit VESA local bus slots (3)
NPU Options   None

[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        32-bit VESA local     S2, S3, & S4
                                       bus slots

                        USER CONFIGURABLE SETTINGS

                Function                      Jumper         Position

  »   Keyboard clock select 8MHz               J08           pins 1 & 2
                                                              closed

      Keyboard clock select iOSC               J08           pins 2 & 3
      derived                                                 closed

  »   CMOS memory normal operation             JP4           pins 1 & 2
                                                              closed

      CMOS memory clear                        JP4           pins 2 & 3
                                                              closed

  »   Onboard battery enabled                  JP8            Closed

      Onboard battery disabled                 JP8             Open

  »   Monitor type select color                JP10           Closed

      Monitor type select monochrome           JP10            Open

                            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        Open
                                                closed

     80487SX/ODP486SX         pins 2 & 3     pins 1 & 2, 3       Open
                               closed         & 4 closed

       80486DX/DX2            pins 1 & 2     pins 1 & 2, 3       Open
                               closed         & 4 closed

                       CPU SPEED CONFIGURATION

    Speed          J03           J04          J05           J06

    20MHz        Closed        Closed        Closed         Open

  25/50i MHz     Closed        Closed         Open         Closed

  33/66i MHz     Closed         Open         Closed        Closed

    40MHz         Open          Open         Closed         Open

    50MHz         Open          Open          Open          Open

            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       JP19

   64KB       pins 1    pins 1     pins 1    pins 1    pins 1    pins 1 &
               & 2       & 2        & 2       & 2       & 2         2

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

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

  Note: Pins designated should be in the closed position.

  VESA BUS SPEED (ID3) CONFIGURATION

     CPU speed          JP23 (ID3)

      <=33MHz              Open

       >33MHz             Closed