
VISIONEX

GREEN-A [4GPV4] MOTHERBOARD

Processor       CX486M6/80486SX/80487SX/CX486M7/AM486DX/80486DX/
                AM486DX2/80486DX2/P24C/P24T
Processor Speed 25/33/40/50(internal)/50/66(internal)MHz
Chip Set        Unidentified
Video Chip Set  None
Maximum Onboard 128MB
Memory
Maximum Video   None
Memory
Cache           256/512/1024KB
BIOS            AMI/Award/MR
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           JP2       Turbo switch               JP19

  Green PC connector         JP3       Green PC connector         JP20

  Power LED & keylock        JP16      Turbo LED                  JP21

  Speaker                    JP17      Reset switch               JP26

  Green PC LED               JP18      32-bit VESA local bus   SL1 - SL3
                                       slots

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     CMOS memory normal operation          JP1        Pins 1 & 2 closed

      CMOS memory clear                     JP1        Pins 2 & 3 closed

      Jumper information unavailable        JP4          Unidentified

      Flash BIOS voltage select 12v         JP5        Pins 2 & 3 closed

      Flash BIOS voltage select 5v          JP5        Pins 1 & 2 closed

      Turbo enabled                        JP19              Open

      Turbo disabled                       JP19             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

      5MB         (4) 1M x 9     (4) 256K x 9

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

      16MB        (4) 4M x 9         None

      17MB        (4) 256K x 9    (4) 4M x 9

      17MB        (4) 4M x 9     (4) 256K x 9

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

      65MB        (4) 256K x 9   (4) 16M x 9

      65MB        (4) 16M x 9    (4) 256K x 9

      68MB        (4) 1M x 9     (4) 16M x 9

      68MB        (4) 16M x 9     (4) 1M x 9

      80MB        (4) 4M x 9     (4) 16M x 9

      80MB        (4) 16M x 9     (4) 4M x 9

     128MB        (4) 16M x 9    (4) 16M x 9

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

     256KB        (4) 32K x 8     (4) 32K x 8    (1) 32K x 8

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

      1MB        (4) 128K x 8    (4) 128K x 8    (1) 128K x 8

  Note: The location of banks 0 & 1 are unidentified.

                  CACHE JUMPER CONFIGURATION

        Size                 JP11                 JP12

        256KB          Pins 1 & 2 closed   Pins 1 & 2 closed

        512KB          Pins 2 & 3 closed   Pins 2 & 3 closed

         1MB           Pins 2 & 4 closed   Pins 2 & 3 closed

                            CPU SPEED SELECTION

  Speed      JP13       JP22     JP27    JP28     JP60      JP61    JP62

  25MHz     Closed      Open     2 & 4   2 & 3   Closed     1 & 2   2 & 3

  33MHz      Open       Open     2 & 4   2 & 3   Closed     2 & 3   1 & 2

  40MHz      Open      Closed    2 & 3   1 & 2    Open      1 & 2   2 & 3

  50iMHz    Closed      Open     2 & 4   2 & 3   Closed     1 & 2   2 & 3

  50MHz      Open      Closed    1 & 2   1 & 2    Open      2 & 3   1 & 2

  66iMHz     Open       Open     2 & 4   2 & 3   Closed     2 & 3   1 & 2

  Note: Pins designated should be in the closed position.

                            CPU TYPE SELECTION

       Type               JP8                JP9               JP10

      80486SX          Pins 2 & 3            Open              Open
                         closed

      80487SX        Pins 1 & 2, 3 &      Pins 1 & 2          Closed
                        4 closed            closed

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

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

       P24C          Pins 1 & 2, 3 &      Pins 1 & 2          Closed
                        4 closed            closed

       P24T          Pins 1 & 2, 3 &      Pins 1 & 2          Closed
                        4 closed            closed

            CPU TYPE SELECTION

        Type                 JP15

        Cyrix         Pins 2 & 3 closed

         AMD          Pins 1 & 2 closed

        Intel         Pins 1 & 2 closed

  VL BUS WAIT STATE SELECTION

    Setting           JP23

       0              Open

       1             Closed

