
STB SYSTEMS, INC.

MVP-4

Card Type                    Video card
Video Chip Set               Tseng Labs ET4000
Highest Resolution Supported 1280 x 1024
Maximum Video Memory         4MB DRAM
Data Bus                     8/16-bit ISA
Video Types Supported        XVGA

[Image]

                                CONNECTIONS

        Function            Label            Function             Label

  Video port                 CN1       Video port                  CN3

  Video port                 CN2       Video port                  CN4

            Note:Each video port acts as a separate adapter, with
            separately configurable memory. The exact location of port 1
            is unidentified. All indications of "Port 1" are only for the
            purposes of this document.

                        USER CONFIGURABLE SETTINGS

                 Setting                    Label          Position

      Video BIOS uses 16-bit data             J1       Pins 2 & 3 closed
      transfer

      Video BIOS uses 8-bit data              J1       Pins 1 & 2 closed
      transfer

      Card uses 16-bit data transfer          J2       Pins 1 & 2 closed

      Card uses 8-bit data transfer           J2       Pins 2 & 3 closed

     Factory configured - do not alter       J5         Unidentified

             DRAM, PORT 1

    Size        Bank 0      Bank 1

    512KB      (4) 128KB     NONE

     1MB       (4) 128KB   (4) 128KB

             DRAM, PORT 2

    Size        Bank 2      Bank 3

    512KB      (4) 128KB     NONE

     1MB       (4) 128KB   (4) 128KB

             DRAM, PORT 3

    Size        Bank 4      Bank 5

    512KB      (4) 128KB     NONE

     1MB       (4) 128KB   (4) 128KB

             DRAM, PORT 4

    Size        Bank 6      Bank 7

    512KB      (4) 128KB     NONE

     1MB       (4) 128KB   (4) 128KB

                         BOARD NUMBER

       Setting                J3                   J4

       Board 1         Pins 2 & 3 closed   Pins 2 & 3 closed

       Board 2         Pins 2 & 3 closed   Pins 1 & 2 closed

       Board 3         Pins 1 & 2 closed   Pins 2 & 3 closed

       Board 4         Pins 1 & 2 closed   Pins 1 & 2 closed

                    VERTICAL REFRESH RATE

     Resolution          Refresh Rate              J6

      640 x 480              60Hz          Pins 2 & 3 closed

      800 x 600              56Hz          Pins 2 & 3 closed

     1024 x 768        43Hz (interlaced)   Pins 2 & 3 closed

      640 x 480              72Hz          Pins 1 & 2 closed

      800 x 600              72Hz          Pins 1 & 2 closed

     1024 x 768              60Hz          Pins 1 & 2 closed

