
ADVANCED INTEGRATION RESEARCH, INC.

486PI REV. 1.20

Processor  80486SX/CX486DX/AM486DX/80486DX/CX486DX2/AM486DX2/80486DX2/
           AM486DX4/80486DX4/Pentium Overdrive
Processor  25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Intel
Max.       64MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       AMI
Dimensions 330mm x 218mm
I/O        Parallel port, serial ports (2), 32-bit VESA local bus slots
Options    (2), 32-bit PCI slots (3), floppy drive interface, IDE
           interface
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                   Location     Purpose                Location

  Floppy drive interface       CN1       Speaker                   J3

  Parallel port                CN2       Turbo switch              J4

  IDE interface                CN3       Turbo LED                 J5

  Serial port 1                CN4       Reset switch              J6

  Serial port 2                CN5       32-bit PCI slots      PC1 - PC3

  Power LED & keylock          J1        32-bit VESA local     SL1 & SL2
                                         bus slots

  IDE interface LED            J2

                        USER CONFIGURABLE SETTINGS

                 Function                      Jumper         Position

     CMOS memory normal operation              JP1          pins 1 & 2
                                                               closed

      CMOS memory clear                         JP1          pins 2 & 3
                                                               closed

     Parallel port IRQ select IRQ7             JP3          pins 1 & 2
                                                               closed

      Parallel port IRQ select IRQ5             JP3          pins 2 & 3
                                                               closed

     Monitor type select                       JP5             Open
      monochrome/EGA/VGA

      Monitor type select CGA                   JP5            Closed

     Factory configured - do not alter         JP17            Open

     Factory configured - do not alter         JP29            Open

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     2MB        (1) 256K x     (1) 256K x        NONE           NONE
                    36             36

     2MB        (1) 512K x        NONE           NONE           NONE
                    36

     3MB        (1) 256K x     (1) 256K x     (1) 256K x        NONE
                    36             36             36

     3MB        (1) 512K x     (1) 256K x        NONE           NONE
                    36             36

     4MB        (1) 256K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     4MB        (1) 512K x     (1) 512K x        NONE           NONE
                    36             36

     4MB        (1) 512K x     (1) 256K x        NONE       (1) 256K x 36
                    36             36

     5MB        (1) 256K x    (1) 1M x 36        NONE           NONE
                    36

     5MB        (1) 512K x     (1) 512K x        NONE       (1) 256K x 36
                    36             36

     6MB        (1) 512K x    (1) 1M x 36        NONE           NONE
                    36

     8MB       (1) 1M x 36    (1) 1M x 36        NONE           NONE

     8MB       (1) 2M x 36        NONE           NONE           NONE

     9MB        (1) 256K x    (1) 1M x 36    (1) 1M x 36        NONE
                    36

     9MB       (1) 2M x 36     (1) 256K x        NONE           NONE
                                   36

     10MB       (1) 512K x    (1) 2M x 36        NONE           NONE
                    36

     10MB       (1) 512K x    (1) 1M x 36        NONE        (1) 1M x 36
                    36

     10MB      (1) 2M x 36     (1) 256K x        NONE       (1) 256K x 36
                                   36

     12MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     12MB      (1) 2M x 36    (1) 1M x 36        NONE           NONE

     13MB       (1) 256K x    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36
                    36

     14MB       (1) 512K x    (1) 2M x 36        NONE        (1) 1M x 36
                    36

     16MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     16MB      (1) 2M x 36    (1) 2M x 36        NONE           NONE

     16MB      (1) 2M x 36    (1) 1M x 36        NONE        (1) 1M x 36

     16MB      (1) 4M x 36        NONE           NONE           NONE

     17MB      (1) 4M x 36     (1) 256K x        NONE           NONE
                                   36

     18MB      (1) 4M x 36     (1) 256K x        NONE       (1) 256K x 36
                                   36

     20MB      (1) 4M x 36    (1) 1M x 36        NONE           NONE

     24MB      (1) 4M x 36    (1) 1M x 36        NONE        (1) 1M x 36

     32MB      (1) 4M x 36    (1) 4M x 36        NONE           NONE

     32MB      (1) 8M x 36        NONE           NONE           NONE

     33MB      (1) 8M x 36     (1) 256K x        NONE           NONE
                                   36

     34MB      (1) 8M x 36     (1) 256K x        NONE       (1) 256K x 36
                                   36

                       DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     36MB       (1) 8M x 36   (1) 1M x 36        NONE          NONE

     40MB       (1) 8M x 36   (1) 1M x 36        NONE       (1) 1M x 36

     48MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36       NONE

     64MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     64MB       (1) 8M x 36   (1) 8M x 36        NONE          NONE

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

     128KB        (4) 32K x 8        NONE        (2) 32K x 8

     256KB        (4) 32K x 8     (4) 32K x 8    (2) 32K x 8

     256KB        (4) 64K x 8        NONE        (2) 32K x 8

     512KB       (4) 128K x 8        NONE        (2) 32K x 8

           CACHE JUMPER CONFIGURATION

   Size      JP8       JP9      JP11      JP12

  128KB     Closed    Open      Open      Open

  256KB      Open    Closed    Closed     Open

  256KB     Closed    Open     Closed     Open

  512KB     Closed    Open     Closed    Closed

                          CPU TYPE CONFIGURATION

     Type          JP10         JP25        JP27        JP28       JP30

    80486SX       Closed        Open        Open       2 & 3      1 & 2

    CX486DX       Closed       Closed      Closed      1 & 2      2 & 3
    (3.3v)

  CX486DX (5v)    Closed       Closed       Open       1 & 2      2 & 3

    AM486DX       Closed       Closed       Open       1 & 2      2 & 3

    80486DX       Closed        Open        Open       1 & 2      1 & 2

    CX486DX2      Closed       Closed      Closed      1 & 2      2 & 3
    (3.3v)

    CX486DX2      Closed       Closed       Open       1 & 2      2 & 3
     (5v)

   AM486DX2       Closed        Open        Open       1 & 2      2 & 3

   80486DX2       Closed        Open        Open       1 & 2      1 & 2

   AM486DX4       Closed       Closed       Open       1 & 2      2 & 3

   80486DX4       Closed        Open        Open       1 & 2      1 & 2

     P24T         Closed        Open        Open       1 & 2      1 & 2

  Note: Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

     Speed          JP19           JP20          JP21           JP22

     25MHz         Closed          Open          Open         pins 2 & 3
                                                               closed

     33MHz          Open          Closed        Closed         Closed

    50iMHz         Closed          Open          Open         pins 2 & 3
                                                               closed

    66iMHz          Open          Closed        Closed         Closed

    75iMHz         Closed          Open          Open         pins 2 & 3
                                                               closed

    100iMHz         Open          Closed        Closed         Closed

                           DMA/ECP CONFIGURATION

      Setting             JP4                JP6               JP7

     Disabled             Open              Open            pins 1 & 2
                                                              closed

  ECP enabled DMA      pins 2 & 3         pins 2 & 3        pins 2 & 3
         1               closed            closed             closed

  ECP enabled DMA      pins 1 & 2         pins 1 & 2        pins 2 & 3
         3               closed            closed             closed

