BEK-TRONIK TECHNOLOGY, INC.

BEK-V419

Processor        80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed  25/33/40/50(internal)/50/66(internal)MHz
Chip Set         UMC
Max. Onboard DRAM64MB
Cache            32/64/128/256KB
BIOS             AMI/Award
Dimensions       330mm x 218mm
I/O Options      32-bit VESA local bus slots (3)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  External battery            J1       Speaker                     J5

  Reset switch                J2       Power LED & keylock         J6

  Turbo switch                J3       32-bit VESA local bus   SL1 - SL3
                                       slots

  Turbo LED                   J4

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   Battery type select internal            JP1             Closed

      Battery type select external            JP1              Open

  »   VESA card type select any card          JP3           pins 1 & 2
      installed                                               closed

      VESA card type select Weitek            JP3           pins 2 & 3
      9000 only                                               closed

  »   ADS delay select no delays              JP6           pins 1 & 2
                                                              closed

      ADS delay select 1 delay for            JP6           pins 2 & 3
      50MHz                                                   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) 1M x 9     (4) 256K x 9

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

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

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

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

      64MB        (4) 16M x 9        NONE

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

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

     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       JP13       JP14       JP15       JP16       JP17

   32KB       Open       2 & 3      Open       Open       Open

   64KB       Open       1 & 2      Open      Closed      Open

   128KB      2 & 3      2 & 3      Open      Closed     Closed

   256KB      1 & 2      1 & 2     Closed     Closed     Closed

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

           Type                     JP18                    JP19

          80486SX             pins 2 & 3 closed             Open

          80487SX             pins 1 & 2, 3 & 4       pins 2 & 3 closed
                                   closed

          80486DX             pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                   closed

         80486DX2             pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                   closed

     Pentium Overdrive        pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                   closed

         CPU SPEED CONFIGURATION

  Speed      JP9       JP10      JP11

  25MHz      Open      Open     Closed

  33MHz     Closed     Open     Closed

  40MHz      Open     Closed    Closed

  50iMHz     Open      Open     Closed

  50MHz     Closed     Open      Open

  66iMHz    Closed     Open     Closed

  VESA WAIT STATE CONFIGURATION

   Wait states         JP20

  0 wait states        Open

  1 wait state        Closed

  BUS SPEED CONFIGURATION

  CPU speed        JP12

   <= 33MHz        Open

   > 33MHz        Closed