
UNIDENTIFIED

J-403TG 486 GREEN VLB

Processor        80486SX/CX486DX/80486DX/80486DX2/80486DX4
Processor Speed  25/33/40/50(internal)/50/66(internal)MHz
Chip Set         OPTI
Max. Onboard DRAM128MB
Cache            64/128/256KB
BIOS             AMI/Award
Dimensions       330mm x 218mm
I/O Options      32-bit VESA local bus slots (3), green PC connector
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  Reset switch              J1        Power LED & keylock         J6

  External battery          J2        Green PC connector          JP6

  Speaker                   J3        Green PC connector         JP39
                                      (monitor)

  Turbo switch              J4        Green PC LED               JP41

  Turbo LED                 J5        32-bit VESA local bus    SL1 - SL3
                                      slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not             JP1              Open
      alter

     CMOS memory normal operation            JP2           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP2           pins 1 & 2
                                                              closed

     Factory configured - do not             JP7              Open
      alter

     Factory configured - do not             JP12             Open
      alter

     Factory configured - do not             JP16             Open
      alter

     Factory configured - do not             JP19             Open
      alter

     Factory configured - do not             JP22             Open
      alter

     Factory configured - do not             JP26             Open
      alter

     Factory configured - do not             JP30             Open
      alter

     Factory configured - do not             U28              Open
      alter

                            DRAM CONFIGURATION

    Size       Bank 0       Bank 1       Bank 2       Bank 3       JP5

    2MB       (4) 256K x     NONE         NONE      (1) 256K x    2 & 3
                  9                                     36

    2MB         NONE         NONE         NONE      (1) 512K x    1 & 2
                                                        36

    4MB       (4) 1M x 9     NONE         NONE         NONE       2 & 3

    4MB         NONE         NONE         NONE       (1) 1M x     1 & 2
                                                        36

    4MB       (4) 256K x  (1) 256K x   (1) 256K x   (1) 256K x    2 & 3
                  9           36           36           36

    4MB         NONE         NONE      (1) 512K x   (1) 512K x    1 & 2
                                           36           36

    5MB       (4) 256K x     NONE         NONE       (1) 1M x     2 & 3
                  9                                     36

    6MB       (4) 256K x     NONE       (1) 1M x    (1) 256K x    2 & 3
                  9                        36           36

    6MB         NONE         NONE       (1) 1M x    (1) 512K x    1 & 2
                                           36           36

    8MB       (4) 1M x 9     NONE         NONE       (1) 1M x     2 & 3
                                                        36

    8MB         NONE         NONE         NONE       (1) 2M x     1 & 2
                                                        36

    8MB         NONE         NONE       (1) 1M x     (1) 1M x     1 & 2
                                           36           36

    10MB      (4) 256K x     NONE       (1) 2M x    (1) 256K x    2 & 3
                  9                        36           36

    10MB      (4) 256K x   (1) 1M x     (1) 1M x    (1) 256K x    2 & 3
                  9           36           36           36

    10MB        NONE         NONE       (1) 2M x    (1) 512K x    1 & 2
                                           36           36

    10MB        NONE       (1) 1M x     (1) 1M x    (1) 512K x    1 & 2
                              36           36           36

    12MB      (4) 1M x 9     NONE       (1) 2M x       NONE       2 & 3
                                           36

    12MB        NONE       (1) 1M x     (1) 1M x     (1) 1M x     1 & 2
                              36           36           36

    12MB      (4) 1M x 9   (1) 1M x     (1) 1M x       NONE       2 & 3
                              36           36

    16MB      (4) 4M x 9     NONE         NONE         NONE       2 & 3

    16MB        NONE         NONE         NONE       (1) 4M x     1 & 2
                                                        36

    16MB      (4) 1M x 9   (1) 1M x     (1) 1M x     (1) 1M x     2 & 3
                              36           36           36

    16MB        NONE         NONE       (1) 2M x     (1) 2M x     1 & 2
                                           36           36

    17MB      (4) 256K x     NONE         NONE       (1) 4M x     2 & 3
                  9                                     36

    20MB      (4) 1M x 9     NONE         NONE       (1) 4M x     2 & 3
                                                        36

    20MB      (4) 1M x 9     NONE       (1) 4M x       NONE       2 & 3
                                           36

    20MB        NONE         NONE       (1) 4M x     (1) 1M x     1 & 2
                                           36           36

    32MB      (4) 4M x 9     NONE         NONE       (1) 4M x     2 & 3
                                                        36

    32MB        NONE         NONE         NONE       (1) 8M x     1 & 2
                                                        36

    32MB      (4) 4M x 9     NONE       (1) 4M x       NONE       2 & 3
                                           36

                        DRAM CONFIGURATION (CONT)

    Size        Bank 0       Bank 1      Bank 2      Bank 3        JP5

    32MB         NONE         NONE       (1) 4M x    (1) 4M x     1 & 2
                                           36          36

    64MB       (4) 16M x      NONE        NONE        NONE        2 & 3
                   9

    64MB         NONE         NONE        NONE      (1) 16M x     1 & 2
                                                       36

    64MB        (4) 4M x    (1) 4M x     (1) 4M x    (1) 4M x     2 & 3
                   9           36          36          36

    64MB         NONE         NONE       (1) 8M x    (1) 8M x     1 & 2
                                           36          36

    128MB      (4) 16M x      NONE        NONE      (1) 16M x     2 & 3
                   9                                   36

    128MB        NONE         NONE        NONE      (1) 32M x     1 & 2
                                                       36

    128MB      (4) 16M x      NONE      (1) 16M x     NONE        2 & 3
                   9                       36

    128MB        NONE         NONE      (1) 16M x   (1) 16M x     1 & 2
                                           36          36

  Note: Pins designated should be in the closed positon.

                    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               JP8                JP27               JP28

      64KB            pins 2 & 3            Open               Open
                        closed

      128KB           pins 1 & 2           Closed              Open
                        closed

      256KB           pins 2 & 3           Closed             Closed
                        closed

                          CPU TYPE CONFIGURATION

     Type          JP9        JP10       JP11         JP13         JP15

    80486SX        Open       Open     pins 1 & 2     Open         Open
                                        closed

   SL80486SX       Open      Closed    pins 1 & 2     Open         Open
                                        closed

    CX486DX       Closed      Open     pins 2 & 3   pins 1 & 2    Closed
                                        closed       closed

    80486DX        Open       Open     pins 1 & 2   pins 1 & 2     Open
                                        closed       closed

   SL80486DX       Open      Closed    pins 1 & 2   pins 1 & 2     Open
                                        closed       closed

   80486DX2        Open       Open     pins 1 & 2   pins 1 & 2     Open
                                        closed       closed

  SL80486DX2       Open      Closed    pins 1 & 2   pins 1 & 2     Open
                                        closed       closed

   80486DX4        Open      Closed    pins 1 & 2   pins 1 & 2     Open
                                        closed       closed

                          CPU TYPE CONFIGURATION

      Type           JP20         JP21       JP23       JP32       JP40

     80486SX         Open         Open       2 & 3      Open     1 & 2, 3
                                                                   & 4

    SL80486SX        Open         Open       2 & 3      Open     1 & 2, 3
                                                                   & 4

     CX486DX         Open         Open      1 & 2, 3    1 & 2    1 & 2, 3
                                              & 4                  & 4

     80486DX         Open         Open      1 & 2, 3    Open     1 & 2, 3
                                              & 4                  & 4

    SL80486DX       Closed       Closed     1 & 2, 3    Open     1 & 2, 3
                                              & 4                  & 4

    80486DX2         Open         Open      1 & 2, 3    Open     1 & 2, 3
                                              & 4                  & 4

   SL80486DX2       Closed       Closed     1 & 2, 3    Open     1 & 2, 3
                                              & 4                  & 4

    80486DX4        Closed       Closed     1 & 2, 3    2 & 3     1 & 2
                                              & 4

  Note: Pins designated should be in the closed position.

   CPU SPEED CONFIGURATION

  Speed      JP17      JP18

  25MHz      Open      Open

  33MHz     Closed    Closed

  40MHz     Closed     Open

  50iMHz     Open      Open

  50MHz      Open     Closed

  66iMHz    Closed    Closed

               CPU VOLTAGE CONFIGURATION

          Voltage                      JP29

            3.3v             pins 3 & 5, 4 & 6 closed

            5.0v             pins 1 & 3, 2 & 4 closed

  VESA WAIT STATE CONFIGURATION

   Wait states         JP35

  0 wait states        Open

  1 wait state        Closed

                          BUS SPEED CONFIGURATION

    CPU speed            JP31               JP33               JP37

     <= 33MHz          pins 1 & 2        pins 2 & 3            Open
                        closed             closed

     > 33MHz           pins 2 & 3        pins 1 & 2           Closed
                        closed             closed

