UNIDENTIFIED

WD90C31

Category                   Video
Video Types Supported      XVGA
Video Processor            Western Digital Corporation
Highest Resolution         1280 x 1024
Supported
Data Bus Type              VESA local bus
Memory Type                DRAM
Maximum Onboard Memory     1MB

[Image]

                                CONNECTIONS

       Purpose          Location            Purpose            Location

  15-pin analog            CN1        VESA Feature                CN2
  video port                          connector

                           CPU TYPE

       Setting                W1                   W3

        80386          Pins 1 & 2 closed         Closed

        80486          Pins 2 & 3 closed          Open

                    MONITOR TYPE (800 X 600 RESOLUTION)

           » Refresh Rates                 SW1/1              SW1/2

  »         Vertical: 56Hz NI,              Off                Off
            Horizontal: 35.12-

  »         Vertical: 72Hz NI,               On                Off
           Horizontal: 37.83+-

  »         Vertical: 60Hz NI,              Off                 On
            Horizontal: 47.67+

                   MONITOR TYPE (1024 X 768 RESOLUTION)

           » Refresh Rates                 SW1/3              SW1/4

  »     Vertical: 87Hz Interlaced,          Off                Off
            Horizontal: 35.60+

  »         Vertical: 70Hz NI,               On                Off
            Horizontal: 56.56-

  »         Vertical: 60Hz NI,              Off                 On
            Horizontal: 48.37-

  »         Vertical: 72Hz NI,               On                 On
            Horizontal: 59.46-

                            MONITOR TYPE (VGA)

              » Refresh Rate                            SW1/5

  »      Vertical: 60, 70Hz, Horizontal:                 Off
                    31.5KHz

  »      Vertical: 75, 88Hz, Horizontal:                  On
                     40KHz

       FACTORY CONFIGURED SETTINGS

       Jumper              Setting

         W5           Pins 1 & 2 closed