GSI, INC.

MODEL 2C

Data Bus                16-bit ISA
Card Size               Half height, half length
Hard Drives Supported   Four IDE(AT) devices
Floppy Drives Supported None

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  VESA local bus               J1      40-pin secondary             J7
  extension module                     IDE(AT) connector

  4-pin DC power out           J5      4-pin drive active LED       J8

  40-pin primary IDE(AT)       J6
  connector

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label        Position

  »   Factory configured - do not alter         J4/A        Pins 2 & 3

  »   GSI BigaByte support for >4095            J4/G        Pins 1 & 2
      cylinder drives disabled

      GSI BigaByte support for >4095            J4/G        Pins 2 & 3
      cylinder drives enabled

                      IDE(AT) INTERFACE CONFIGURATION

    Option       Primary       Secondary      Primary IRQ   Secondary IRQ
                  Addr.          Addr.

        1         1F0h           170h           IRQ14          IRQ15

        2         170h         Disabled         IRQ15           N/A

        3         170h         Disabled         IRQ12           N/A

  »     4         170h           1E8h           IRQ15          IRQ11

        5         170h           1E8h           IRQ15          IRQ12

        6         1E8h         Disabled         IRQ11           N/A

        7         1E8h         Disabled         IRQ12           N/A

        8         1E8h           168h           IRQ11          IRQ10

        9         1E8h           168h           IRQ11          IRQ12

                  IDE(AT) INTERFACE CONFIGURATION (CON’T)

   Option        J4/B           J4/C           J4/D              J9

        1      Pins 1 & 2     Pins 1 & 2     Pins 2 & 3      Pins 7 & 8
                closed         closed         closed           closed

        2      Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 7 & 8
                closed         closed         closed           closed

        3      Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 5 & 7
                closed         closed         closed           closed

  »     4      Pins 1 & 2     Pins 2 & 3     Pins 2 & 3     Pins 7 & 8, 4
                closed         closed         closed         & 6 closed

        5      Pins 1 & 2     Pins 2 & 3     Pins 2 & 3     Pins 7 & 8, 5
                closed         closed         closed         & 6 closed

        6      Pins 2 & 3     Pins 1 & 2     Pins 1 & 2      Pins 4 & 6
                closed         closed         closed           closed

        7      Pins 2 & 3     Pins 1 & 2     Pins 1 & 2      Pins 5 & 6
                closed         closed         closed           closed

        8      Pins 1 & 2     Pins 1 & 2     Pins 1 & 2     Pins 4 & 6, 1
                closed         closed         closed         & 3 closed

        9      Pins 1 & 2     Pins 1 & 2     Pins 1 & 2     Pins 4 & 6, 3
                closed         closed         closed         & 5 closed

                          BIOS ADDRESS SELECTION

          Setting                   J4/E                    J4/F

  »          C800h            Pins 1 & 2 closed       Pins 1 & 2 closed

             CC00h            Pins 2 & 3 closed       Pins 1 & 2 closed

             D000h            Pins 1 & 2 closed       Pins 2 & 3 closed

             E000h            Pins 2 & 3 closed       Pins 2 & 3 closed