AST RESEARCH, INC.

SIXPACK PREMIUM

Card Type          Memory/Multi I/O
Chipset/Controller Western Digital
I/O Options        Game port, parallel port, serial ports (2)
Maximum DRAM       1024KB

[Image]

                                CONNECTIONS

         Purpose           Location           Purpose           Location

  Parallel port              CN1       Serial port 2               P2

  Premium Pak connector       J1       Game port                   P3

  Serial port 1               J2

  FACTORY CONFIGURED SETTINGS

     Switch         Setting

  SW1/switch 5        N/A

  SW1/switch 6        N/A

  SW2/switch 5        N/A

  SW2/switch 6        N/A

                         SERIAL PORT CONFIGURATION

    Port 1 (J2)      Port 2 (P2)        E3           E4            E5

  »       COM1           COM2         Closed        Open         Closed

          COM2         Disabled        Open        Closed         Open

        Disabled         COM2          Open         Open         Closed

        Disabled       Disabled        Open         Open          Open

                      SERIAL PORT INTERRUPT SELECTION

   Port 1 (J2)       Port 2         E18           E19            E20
                     (P2)

  »      IRQ4        IRQ3         Closed          Open          Closed

         IRQ3         N/A          Open          Closed          Open

               SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION

    Port 1        E21       E22       E23       E24       E25       E26

  »   Normal     Open     Closed     Open     Closed     Open     Closed

      Forced    Closed     Open     Closed     Open     Closed     Open
       True

               SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION

    Port 2        E10       E11       E12       E13       E14       E15

  »   Normal     Open     Closed     Open     Closed     Open     Closed

      Forced    Closed     Open     Closed     Open     Closed     Open
       True

                          PARALLEL PORT SETTINGS

             LPT                       E6                     E7

  »             1                    Closed                  Open

                2                     Open                  Closed

             Disabled                 Open                   Open

                         PARALLEL PORT INTERRUPTS

                  IRQ7                                  E17

  »                Enabled                            Closed

                  Disabled                             Open

                          GAME PORT CONFIGURATION

                Game Port                               E8

  »                Enabled                            Closed

                  Disabled                             Open

                       CLOCK/CALENDAR CONFIGURATION

              Clock/Calendar                             E9

  »                 Enabled                              On

                    Disabled                             Off

                         DUAL PAGE MODE SELECTION

            Dual Page Mode                        SW1/switch 7

  »               Enabled                              On

                 Disabled                              Off

                         BASE I/O ADDRESS SETTINGS

       Address            SW2/1        SW2/2        SW2/3        SW2/4

  »        0218h           On           On           On           Off

           0208h           On           On           On            On

           0258h           On           Off          On           Off

           0268h           On           Off          Off           On

           02A8h           Off          On           Off           On

           02B8h           Off          On           Off          Off

           02E8h           Off          Off          Off           On

                      STARTING MEMORY ADDRESS SETTING

     Starting Memory         SW1/1       SW1/2       SW1/3        SW1/4
       (Mainboard)

  »         640KB             Off         On          Off          On

            576KB             On          Off         Off          On

            512KB             Off         Off         Off          On

            448KB             On          On           On          Off

            384KB             Off         On           On          Off

            320KB             On          Off          On          Off

            256KB             Off         Off          On          Off

            192KB             On          On          Off          Off

            128KB             Off         On          Off          Off

             64KB             On          Off         Off          Off

             0KB              Off         Off         Off          Off

  Note:Setting the starting address to 256KB allocates all SixPak Premium
  memory as expanded memory.

                   SIXPAK PREMIUM MEMORY SIZE SELECTION

          Size                 SW2/switch 7             SW2/switch 8

  »      Up to 512KB                On                      Off

         Up to 640KB                Off                     Off

         Up to 256KB                Off                      On

             0KB                    On                       On

                       DRAM CONFIGURATION

    Size        Bank 0       Bank 1      Bank 2       Bank 3

    256KB     (9) 41256       None        None         None

    512KB     (9) 41256    (9) 41256      None         None

    768KB     (9) 41256    (9) 41256    (9) 41256      None

     1MB      (9) 41256    (9) 41256    (9) 41256    (9) 41256

                           PARITY CONFIGURATION

                Parity                            SW1/switch 8

  »               Enabled                              On

                 Disabled                              Off

[Image]

                   CONNECTIONS

         Purpose                 Location

  Premium Pak connector             J1

                PREMIUM PAK MEMORY CONFIGURATION

    Size        Bank 4       Bank 5      Bank 6       Bank 7

   1.25MB     (9) 41256       None        None         None

    1.5MB     (9) 41256    (9) 41256      None         None

   1.75MB     (9) 41256    (9) 41256    (9) 41256      None

     2MB      (9) 41256    (9) 41256    (9) 41256    (9) 41256