
AUSTIN COMPUTER SYSTEMS

3486LE WINSTATION

Processor           80386DX/80486SX/80487SX/80486DX/80486DX2
Processor Speed     20/25/33/40/50(internal)/50/66(internal) MHz
Chip Set            OPTI
Max. Onboard DRAM   32MB
SRAM Cache          64/128/256KB
BIOS                AMI
Dimensions          310mm x 218mm
I/O Options         32-bit local bus slot
NPU Options         80387DX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Power LED & keylock         J1       External battery           JP18

  Speaker                     J2       32-bit local bus            S1

  Reset switch                J5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

      Unused jumper pad                        J3              Open

      Unused jumper pad                        J4              Open

     Monitor type select color               JP17            Closed

      Monitor type select monochrome          JP17             Open

     CMOS memory normal operation            JP18           pins 2 & 3
      (Internal Battery)                                      closed

      CMOS memory normal operation            JP18           pins 1 & 4
      (External Battery)                                      closed

      CMOS memory clear                       JP18           pins 3 & 4
                                                              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) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                         SRAM JUMPER CONFIGURATION

    Size          JP6            JP7            JP12            JP13

    64KB          Open           Open           Open         pins 2 & 3
                                                               closed

   128KB          Open          Closed         Closed        pins 1 & 2
                                                               closed

   256KB         Closed         Closed         Closed        pins 2 & 3
                                                               closed

                    SRAM CONFIGURATION

     Size          Cache         Location         TAG

     64KB        (8) 8K x 8    Banks 0 & 1    (1) 8K x 8

     128KB      (4) 32K x 8       Bank 0      (1) 8K x 8

     256KB      (8) 32K x 8    Banks 0 & 1    (1) 32K x 8

                          CPU TYPE CONFIGURATION

    CPU        JP1     JP2   JP3    JP4    JP5    JP20     JP21     JP24

   80386DX     N/A     N/A   2 &    N/A    1 &    Open     Closed   1 & 2
    PQFP                      3             2

   80486SX     N/A     N/A   1 &    N/A    2 &    Open     Open     2 & 3
    PQFP                      2             3

   80486SX    Open     2 &   1 &    Open   2 &    Closed   Closed   2 & 3
    PGA                 3     2             3

   80487SX    Closed   1 &   1 &    2 &    2 &    Closed   Closed   2 & 3
    PGA                 2     2      3      3

   80486DX    Closed   1 &   1 &    1 &    2 &    Closed   Closed   2 & 3
    PGA                 2     2      2      3

  ODP486SX    Closed   1 &   1 &    2 &    2 &    Closed   Closed   2 & 3
    PGA                 2     2      3      3

  80486DX2    Closed   1 &   1 &    1 &    2 &    Closed   Closed   2 & 3
    PGA                 2     2      2      3

  Note:Pins designated should be in the closed postion.

  The locations of jumpers JP1 and JP2 are unknown.

                           CPU SPEED CONFIGURATION

    CPU       Speed  Type   JP14    JP15     JP16    JP22     JP51     JP52

  80486SX     25MHz  PGA    pins    N/A      N/A      N/A     Closed   Open
                             1 &
                             2

  80486DX     25MHz  PGA    pins    N/A      N/A      N/A     Closed   Open
                             1 &
                             2

  80486SX     25MHz  PQFP   pins    Open    Closed    N/A      N/A      N/A
                             1 &
                             2

  80486DX2     50i   PGA    pins    Open    Closed    N/A      N/A      N/A
              MHz            1 &
                             2

  80386/DLC   33MHz  PQFP   pins    N/A      N/A     Closed   Closed   Open
                             2 &
                             3

  80486SX     33MHz  PGA    pins    N/A      N/A      N/A     Open     Closed
                             1 &
                             2

  80486DX     33MHz  PGA    pins    N/A      N/A      N/A     Open     Closed
                             1 &
                             2

  80486SX     33MHz  PQFP   pins   Closed    Open     N/A      N/A      N/A
                             1 &
                             2

  80486DX2     66i   PGA    pins   Closed    Open     N/A      N/A      N/A
              MHz            1 &
                             2

  80386/DLC   40MHz  PQFP   pins    N/A      N/A     Open     Open     Open
                             2 &
                             3

  80486DX     50MHz  PGA    pins    N/A      N/A      N/A     Closed   Open
                             2 &
                             3

  Note: Pins designated should be in the closed postion.

  The locations of jumpers JP15 and JP16 are unknown.

