ACER, INC.

L90 & 940 GRAPHICS ACCELERATOR CARD

 Data bus:                  32-bit VL-bus

 Size:                      Three-quarter length, full-height card

 Hard drive supported:      Two IDE(AT) drives

 Floppy drives supported:   Two 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                        CONNECTIONS

                Function                      Location

  40-pin IDE(AT) connector                      CN1

  34-pin cable connector - floppy drive         CN2

  10-pin serial port 1 internal                 CN3

  10-pin serial port 2 - internal               CN4

  16-pin game port                              CN5

  26-pin feature connector                      CN6

  25-pin parallel port - external               CN7

  15-pin VGA connector - external               CN8

                        USER CONFIGURABLE SETTINGS

              Function
                                          Location
                                                              Setting

  »
      Local bus signal LRDY#
      enabled
                                       J3/pins 2 & 3
                                                              closed


      Local bus signal RDYRTN#
      enabled
                                       J3/pins 1 & 2
                                                              closed

  »
      IDE(AT) interface enabled
                                             J7
                                                              closed


      IDE(AT) interface disabled
                                             J7
                                                               open

  »
      CPU clock is <=33MHz
                                            J11
                                                               open


      CPU clock is >33MHz
                                            J11
                                                              closed

  »
      Parallel port IRQ 7 select
                                       J14/pins 2 & 3
                                                              closed


      Parallel port IRQ 5 select
                                       J14/pins 1 & 2
                                                              closed

  »
      Floppy drive interface
      enabled
                                       J15/pins 1 & 2
                                                              closed


      Floppy drive interface
      disabled
                                       J15/pins 2 & 3
                                                              closed

                             VGA CONFIGURATION

             Mode                       J4                    J5

  »          Enabled            pins 2 & 3 closed      pins 2 & 3 closed

             Disabled           pins 1 & 2 closed      pins 1 & 2 closed

                    SERIAL PORT 1 &AMP; 2 CONFIGURATION

      COM 1
                         COM 2
                                            J12
                                                               J13

   COM1 (3F8h)
                      COM2 (2F8h)
                                         pins 2 & 3
                                           closed
                                                            pins 1 & 2
                                                              closed

   COM1 (3F8h)
                      COM4 (2E8h)
                                         pins 1 & 2
                                           closed
                                                            pins 1 & 2
                                                              closed

   COM2 (2F8h)
                      COM3 (3E8h)
                                         pins 1 & 2
                                           closed
                                                            pins 2 & 3
                                                              closed

   COM3 (3E8h)
                      COM4 (2E8h)
                                         pins 2 & 3
                                           closed
                                                            pins 2 & 3
                                                              closed

                 SERIAL PORT 1 &AMP; 2 MODE CONFIGURATION

     COM 1          COM 2           J18            J19           J21

    Enabled        Enabled       pins 1 & 2     pins 1 & 2    pins 1 & 2
                                   closed        closed         closed

    Enabled        Disabled      pins 1 & 2     pins 2 & 3    pins 1 & 2
                                   closed        closed         closed

   Disabled        Enabled       pins 2 & 3     pins 1 & 2    pins 2 & 3
                                   closed        closed         closed

   Disabled        Disabled      pins 2 & 3     pins 2 & 3       N/A
                                   closed        closed

                      PARALLEL PORT ADDRESS SELECTION

             LPT
                                       J16
                                                              J17

  »
               378h
                                pins 1 & 2 closed
                                                       pins 1 & 2 closed


               278h
                                pins 2 & 3 closed
                                                       pins 1 & 2 closed


               2BCh
                                pins 1 & 2 closed
                                                       pins 2 & 3 closed


             Disabled
                                pins 2 & 3 closed
                                                       pins 2 & 3 closed

               DRAM CONFIGURATION

      Size           Bank 0          Bank 1

       1MB         (2) 256 x 16       none

       2MB         (2) 256 x 16   (8) 256 x 4