AUSTIN COMPUTER SYSTEMS

486 S14

Processor              80486DX/80486DX2
Processor Speed        25/33/50(internal)/50/66(internal)MHz
Chip Set               SIS
Max. Onboard DRAM      32MB
Cache                  64/128/256KB
BIOS                   AMI
Dimensions             220mm x 220mm
I/O Options            32-bit proprietary OPTI local bus card slot
NPU Options            None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  Turbo LED                  J3        Reset switch                J6

  Turbo switch               J4        Power LED & keylock         J7

  Speaker                    J5        32-bit OPTI local bus       S1
                                       card

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Local bus data size select               J8            pins 1 & 2
      32-bits                                                 closed

      Local bus data size select               J8            pins 2 & 3
      16-bits                                                 closed

  »   CMOS memory normal operation             JP1            Closed

      CMOS memory clear                        JP1             Open

  »   Monitor type select color                JP2            Closed

      Monitor type select monochrome           JP2             Open

  »   Factory configured - do not alter        JP6              N/A

  »   Factory configured - do not alter        JP7              N/A

  »   Factory configured - do not alter        JP8              N/A

              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

      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          TAG

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

     128KB      (4) 32K x 8        NONE       (1) 8K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

  Size     SR1    SR2    SR3    SR4     SR5    SR6    SR7    SR8     SR9

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

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

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

  Note: Pins designated should be in the closed position.