UNIDENTIFIED

80486L-ISA

Processor             80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed       20/25/33/50(internal)/50/66(internal)MHz
Chip Set              SIS
Max. Onboard DRAM     32MB
Cache                 64/128/256KB
BIOS                  AMI/Award
Dimensions            254mm x 218mm
I/O Options           32-bit local bus card slot
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  32-bit local bus card       CN1      Reset switch               JP13

  External battery            JP1      Power LED & keylock        JP14

  Speaker                    JP11      Turbo LED                  JP15

  Turbo switch               JP12

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                JP3             Open

      Monitor type select monochrome           JP3            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

      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                 JP6                  JP7

        64KB                 Open                 Open

        128KB          pins 1 & 2 closed         Closed

        256KB          pins 2 & 3 closed         Closed

                          CPU TYPE CONFIGURATION

     Type         Speed     Oscillator      JP4        JP8         JP9

    80486SX       16MHz        32MHz       1 & 2       Open       2 & 3

    80486SX       20MHz        40MHz       1 & 2       Open       2 & 3

   ODP486SX       50MHz        25MHz       2 & 3      1 & 2      1 & 2, 3
                                                                   & 4

    80487SX       25MHz        25MHz       2 & 3      1 & 2      1 & 2, 3
                                                                   & 4

    80486DX       25MHz        25MHz       2 & 3      2 & 3      1 & 2, 3
                                                                   & 4

    80486DX       33MHz        33MHz       2 & 3      2 & 3      1 & 2, 3
                                                                   & 4

    80486DX       50MHz        50MHz       2 & 3      2 & 3      1 & 2, 3
                                                                   & 4

   80486DX2       50MHz        25MHz       2 & 3      2 & 3      1 & 2, 3
                                                                   & 4

   80486DX2       66MHz        33MHz       2 & 3      2 & 3      1 & 2, 3
                                                                   & 4

  Note:The location of JP4 is unidentified. Pins designated should be in
  the closed position.