UNIDENTIFIED

PRIME 2C MKIII

Card Type               Hard drive controller
Hard Drives supported   Two IDE (AT) drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, or 1.44MB drives
Data Bus                16-bit ISA
Card Size               Half-length, half-height


[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  16-pin game port           CON1      10-pin serial port 2 -     CON5
                                       internal

  10-pin serial port 1 -     CON2      40-pin IDE(AT)             CON6
  internal                             connector

  25-pin parallel port -     CON3      Drive active LED           CON7
  external

  34-pin cable connector     CON4      9-pin serial port -        CON8
  - floppy drive                       external

                        USER CONFIGURABLE SETTINGS

               Function                    Label            Position

  Floppy drive interface enabled             J1         Pins 1 & 2 closed

  Floppy drive interface disabled            J1         Pins 2 & 3 closed

  Primary floppy drive enabled               J2         Pins 1 & 2 closed

  Secondary floppy drive disabled            J2         Pins 2 & 3 closed

  IDE(AT) interface enabled                  J3         Pins 1 & 2 closed

  IDE(AT) interface disabled                 J3         Pins 2 & 3 closed

  Primary IDE drive enabled                  J4         Pins 1 & 2 closed

  Secondary IDE drive disabled               J4         Pins 2 & 3 closed

  Game port enabled                         J11         Pins 1 & 2 closed

  Game port disabled                        J11         Pins 2 & 3 closed

  PD0-PD7 output enabled                    J16         Pins 1 & 2 closed

  PD0-PD7 output disabled                   J16         Pins 2 & 3 closed

               PARALLEL PORT ADDRESS SELECTION

       Setting                J9                  J10

     LPT1 (378h)       Pins 1 & 2 closed   Pins 1 & 2 closed

     LPT2 (278h)       Pins 1 & 2 closed   Pins 2 & 3 closed

      Disabled         Pins 2 & 3 closed          N/A

               SERIAL PORT 1 ADDRESS SELECTION

       Setting                J5                   J6

     COM1 (3F8h)       Pins 1 & 2 closed   Pins 1 & 2 closed

     COM3 (3E8h)       Pins 1 & 2 closed   Pins 2 & 3 closed

      Disabled         Pins 2 & 3 closed          N/A

               SERIAL PORT 2 ADDRESS SELECTION

       Setting                J7                   J8

     COM2 (2F8h)       Pins 1 & 2 closed   Pins 1 & 2 closed

     COM4 (2E8h)       Pins 1 & 2 closed   Pins 2 & 3 closed

      Disabled         Pins 2 & 3 closed          N/A

                     SERIAL PORT 1 INTERRUPT SELECTION

    IRQ       J12/pins 1 &   J13/pins 1 &    J14/pins 1 &    J15/pins 1 &
                   2              2               2               2

    IRQ3         Open           Closed          Open            Open

    IRQ4         Open            Open          Closed           Open

    IRQ5         Open            Open           Open           Closed

    IRQ9        Closed           Open           Open            Open

                     SERIAL PORT 2 INTERRUPT SELECTION

    IRQ       J12/pins 2 &   J13/pins 2 &    J14/pins 2 &    J15/pins 2 &
                   3              3               3               3

    IRQ3         Open           Closed          Open            Open

    IRQ4         Open            Open          Closed           Open

    IRQ5         Open            Open           Open           Closed

    IRQ9        Closed           Open           Open            Open