
BEK-TRONIC TECHNOLOGY, INC.

BEK-V429S

Processor   80486SX/SL80486SX/CX486DX/AM486DX/80486DX/SL80486DX/
            CX486DX2/AM486DX2/SL80486DX2/80486DX2/CX486DX4/
            CX486DX4/(SL)AM486DX4/SL80486DX4/P24D/P24T/CX5X86
Processor   25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/
Speed       100(internal)/120(internal)MHz
Chip Set    OPTI
Video Chip  None
Set
Maximum     64MB
Onboard
Memory
Maximum     None
Video
Memory
Cache       64/128/256/512KB
BIOS        Award
Dimensions  254mm x 218mm
I/O Options 32-bit VESA local bus slots (3), green PC connector
NPU Options None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  External battery           J2        Speaker                   JP38

  Power LED & keylock        J22       Green PC connector        JP39
                                       (monitor)

  Green PC connector         JP6       Green PC LED              JP41

  Turbo LED                 JP34       Reset switch               S1

  Turbo switch              JP36       32-bit VESA local       SL1  SL3
                                       bus slots

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

      Monitor type select color             JP1             Closed

      Monitor type select monochrome        JP1              Open

     CMOS memory normal operation          JP2        Pins 2 & 3 closed

      CMOS memory clear                     JP2        Pins 1 & 2 closed

      Battery type select external          JP2              Open

     Factory configured - do not           JP7             Closed
      alter

     Factory configured - do not          JP30          Unidentified
      alter

     Factory configured - do not          JP31        Pins 2 & 3 closed
      alter

      LRDY wait state select 0 wait        JP33        Pins 2 & 3 closed
      states

      LRDY wait state select 1 wait        JP33        Pins 1 & 2 closed
      state

                           DRAM CONFIGURATION 1

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB       (4) 256K x 9       None           None           None

     2MB       (4) 256K x 9    (1) 256K x        None           None
                                   36

     4MB        (4) 1M x 9        None           None           None

     4MB       (4) 256K x 9    (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     5MB       (4) 256K x 9   (1) 1M x 36        None           None

     6MB       (4) 256K x 9    (1) 256K x    (1) 1M x 36        None
                                   36

     8MB        (4) 1M x 9    (1) 1M x 36        None           None

     8MB        (4) 1M x 9        None       (1) 1M x 36        None

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

     12MB       (4) 1M x 9        None       (1) 1M x 36     (1) 1M x 36

     16MB       (4) 4M x 9        None           None           None

     16MB       (4) 1M x 9    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     17MB      (4) 256K x 9   (1) 4M x 36        None           None

     20MB       (4) 1M x 9    (1) 4M x 36        None           None

     20MB       (4) 1M x 9        None       (1) 4M x 36        None

     32MB       (4) 4M x 9    (1) 4M x 36        None           None

     64MB       (4) 4M x 9    (1) 4M x 36    (1) 4M x 36     (1) 4M x 36

                           DRAM CONFIGURATION 2

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB           None         (1) 256K x       None           None
                                   36

     4MB           None        (1) 1M x 36       None           None

     8MB           None        (1) 1M x 36    (1) 1M x 36       None

     12MB          None        (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     16MB          None        (1) 4M x 36       None           None

     20MB          None        (1) 1M x 36    (1) 4M x 36       None

     32MB          None        (1) 4M x 36    (1) 4M x 36       None

        DRAM JUMPER CONFIGURATION

    Configuration            JP5

          1           Pins 2 & 3 closed

          2           Pins 1 & 2 closed

                            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 (A)        (4) 32K x 8        (4) 32K x 8     (1) 16K/32K x 8

     256KB (B)        (2) 64K x 32          None         (1) 16K/32K x 8

       512KB          (4) 128K x 8          None           (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

     Size           JP8            JP27          JP28            JP43

     64KB        Pins 2 & 3        Open          Open            Open
                  closed

    128KB        Pins 1 & 2       Closed         Open            Open
                  closed

  256KB (A)      Pins 2 & 3       Closed        Closed           Open
                  closed

  256KB (B)      Pins 1 & 2       Closed        Closed           Open
                  closed

    512KB        Pins 1 & 2       Closed        Closed          Closed
                  closed

         CACHE TAG CONFIGURATION

        Size                 JP44

     (1) 8K x 8       Pins 1 & 2 closed

     (1) 16K x 8      Pins 2 & 3 closed

     (1) 32K x 8      Pins 1 & 2 closed

                            CPU TYPE SELECTION

        Type             JP9           JP10          JP11         JP12

     80486SX-25          Open         Closed         1 & 2        Open

     80486SX-33          Open         Closed         1 & 2        Open

    SL80486SX-25         Open         Closed         1 & 2       1 & 2

    SL80486SX-33         Open         Closed         1 & 2       1 & 2

    SL8046SX2-50         Open         Closed         1 & 2       1 & 2

     CX486DX-33         Closed         Open          2 & 3       2 & 3

     CX486DX-40         Closed         Open          2 & 3       2 & 3

     AM486DX-33          Open          Open          1 & 2        Open

     AM486DX-40          Open          Open          1 & 2        Open

     80486DX-33          Open          Open          1 & 2        Open

    SL80486DX-33         Open         Closed         1 & 2       1 & 2

    CX486DX2-50         Closed         Open          2 & 3       2 & 3

    CX486DX2-66         Closed         Open          2 & 3       2 & 3

  AM486DX2-66NV8T        Open          Open          1 & 2        Open

  AM486DX2-80NV8T        Open          Open          1 & 2        Open

  AM486DX2-66NV8T        Open          Open          1 & 2        Open

   SL80486DX2-50         Open         Closed         1 & 2       1 & 2

    80486DX2-66          Open         Closed         1 & 2        Open

   SL80486DX2-66         Open         Closed         1 & 2       1 & 2

    CX486DX2-80         Closed         Open          2 & 3       2 & 3

    CX486DX4-100        Closed         Open          2 & 3       2 & 3

  (SL)AM486DX4-100       Open         Closed         1 & 2       1 & 2

  (SL)AM486DX4-120       Open         Closed         1 & 2       1 & 2

   SL80486DX4-75         Open         Closed         1 & 2       1 & 2

   SL80486DX4-100        Open         Closed         1 & 2       1 & 2

        P24D             Open         Closed         2 & 3       1 & 2

        P24T             Open         Closed         2 & 3       1 & 2

     CX5X86-100          Open         Closed         2 & 3       1 & 2

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (CONT)

        Type           JP13         JP15           JP17          JP18

     80486SX-25        Open         Open           Open          Open

     80486SX-33        Open         Open          Closed        Closed

    SL80486SX-25       Open         Open           Open          Open

    SL80486SX-33       Open         Open          Closed        Closed

    SL8046SX2-50       Open         Open           Open          Open

     CX486DX-33        1 & 2        Open          Closed        Closed

     CX486DX-40        1 & 2        Open          Closed         Open

     AM486DX-33        1 & 2        Open          Closed        Closed

     AM486DX-40        1 & 2        Open          Closed         Open

     80486DX-33        1 & 2        Open          Closed        Closed

    SL80486DX-33       1 & 2        Open          Closed        Closed

    CX486DX2-50        1 & 2        Open           Open          Open

    CX486DX2-66        1 & 2        Open          Closed        Closed

  AM486DX2-66NV8T      1 & 2        Open          Closed        Closed

  AM486DX2-80NV8T      1 & 2        Open          Closed         Open

  AM486DX2-66NV8T      1 & 2        Open          Closed        Closed

   SL80486DX2-50       1 & 2        Open           Open          Open

    80486DX2-66        1 & 2        Open          Closed        Closed

   SL80486DX2-66       1 & 2        Open          Closed        Closed

    CX486DX2-80        1 & 2        Open          Closed         Open

    CX486DX4-100       1 & 2        Open          Closed        Closed

  (SL)AM486DX4-100     1 & 2        Open          Closed        Closed

  (SL)AM486DX4-120     1 & 2        Open          Closed         Open

   SL80486DX4-75       1 & 2        Open           Open          Open

   SL80486DX4-100      1 & 2        Open          Closed        Closed

        P24D           1 & 2       Closed         Closed        Closed

        P24T           1 & 2        Open          Closed        Closed

     CX5X86-100        1 & 2       Closed         Closed        Closed

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (CONT)

        Type           JP19         JP20           JP21          JP22

     80486SX-25        Open         Open           Open          Open

     80486SX-33        Open         Open           Open          Open

    SL80486SX-25       Open        Closed         Closed         Open

    SL80486SX-33       Open        Closed         Closed         Open

    SL8046SX2-50       Open        Closed         Closed         Open

     CX486DX-33        Open         Open           Open          Open

     CX486DX-40        Open         Open           Open          Open

     AM486DX-33        Open         Open           Open          Open

     AM486DX-40        Open         Open           Open          Open

     80486DX-33        Open         Open           Open          Open

    SL80486DX-33       Open        Closed         Closed         Open

    CX486DX2-50        Open         Open           Open         Closed

    CX486DX2-66        Open         Open           Open         Closed

  AM486DX2-66NV8T      2 & 3        Open           Open          Open

  AM486DX2-80NV8T      2 & 3        Open           Open          Open

  AM486DX2-66NV8T      Open         Open           Open          Open

   SL80486DX2-50       Open        Closed         Closed         Open

    80486DX2-66        Open         Open           Open          Open

   SL80486DX2-66       Open        Closed         Closed         Open

    CX486DX2-80        Open         Open           Open         Closed

    CX486DX4-100       Open         Open           Open         Closed

  (SL)AM486DX4-100     Open        Closed         Closed         Open

  (SL)AM486DX4-120     Open        Closed         Closed         Open

   SL80486DX4-75       Open        Closed         Closed         Open

   SL80486DX4-100      Open        Closed         Closed         Open

        P24D           1 & 2       Closed         Closed         Open

        P24T           Open        Closed         Closed         Open

     CX5X86-100        1 & 2       Closed         Closed         Open

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (CONT)

        Type               JP23              JP29              JP32

     80486SX-25           2 & 3          1 & 3, 2 & 4          Open

     80486SX-33           2 & 3          1 & 3, 2 & 4          Open

    SL80486SX-25          2 & 3          1 & 3, 2 & 4          Open

    SL80486SX-33          2 & 3          1 & 3, 2 & 4          Open

    SL8046SX2-50          2 & 3          1 & 3, 2 & 4          Open

     CX486DX-33        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

     CX486DX-40        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

     AM486DX-33        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

     AM486DX-40        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

     80486DX-33        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

    SL80486DX-33       1 & 2, 3 & 4      1 & 3, 2 & 4          Open

    CX486DX2-50        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

    CX486DX2-66        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

  AM486DX2-66NV8T      1 & 2, 3 & 4      1 & 3, 2 & 4          Open

  AM486DX2-80NV8T      1 & 2, 3 & 4      1 & 3, 2 & 4          Open

  AM486DX2-66NV8T      1 & 2, 3 & 4      1 & 3, 2 & 4          Open

   SL80486DX2-50       1 & 2, 3 & 4      1 & 3, 2 & 4          Open

    80486DX2-66        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

   SL80486DX2-66       1 & 2, 3 & 4      1 & 3, 2 & 4          Open

    CX486DX2-80        1 & 2, 3 & 4      1 & 3, 2 & 4          Open

    CX486DX4-100       1 & 2, 3 & 4      1 & 3, 2 & 4          Open

  (SL)AM486DX4-100     1 & 2, 3 & 4      3 & 5, 4 & 6          Open

  (SL)AM486DX4-120     1 & 2, 3 & 4      3 & 5, 4 & 6          Open

   SL80486DX4-75       1 & 2, 3 & 4      3 & 5, 4 & 6          Open

   SL80486DX4-100      1 & 2, 3 & 4      3 & 5, 4 & 6          Open

        P24D               Open          1 & 3, 2 & 4          Open

        P24T           1 & 2, 3 & 4      1 & 3, 2 & 4          2 & 3

     CX5X86-100        1 & 2, 3 & 4      3 & 5, 4 & 6          Open

  Note: Pins designated should be in the closed position.

  VL BUS WAIT STATE SELECTION

    Setting           JP35

       0              Open

       1             Closed

  VL BUS SPEED SELECTION

    Speed         JP37

  <= 33MHz        Open

   >33 MHz       Closed

