
ADVANCED INTEGRATION RESEARCH, INC.

486PH REV. 1.0

Processor  80486SX/CX486DX/AM486DX/80486DX/CX486DX2/AM486DX2/80486DX2/
           AM486DX4/80486DX4
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        32-bit VESA local bus slots (2), 32-bit PCI slots (3), green PC
Options    connector, IDE interface
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Speaker                     J1       Turbo LED                   J6

  Power LED & keylock         J2       IDE interface               J7

  IDE interface LED           J3       Green PC connector          J8

  Turbo switch                J4       32-bit PCI slots        PC1 - PC3

  Reset switch                J5       32-bit VESA local bus   SL1 & SL2
                                       slots

                        USER CONFIGURABLE SETTINGS

                 Function                      Jumper         Position

     CMOS memory normal operation              JP1          pins 1 & 2
                                                               closed

      CMOS memory clear                         JP1          pins 2 & 3
                                                               closed

     Monitor type select                       JP2             Open
      monochrome/EGA/VGA

      Monitor type select CGA                   JP2            Closed

     Factory configured - do not alter         JP3          pins 1 & 2
                                                               closed

     Factory configured - do not alter         JP14         pins 1 & 2
                                                               closed

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

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

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

     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

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

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

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

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

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

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

     24MB       (1) 2M x 36   (1) 4M x 36        NONE          NONE

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

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

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

     40MB       (1) 1M x 36   (1) 1M x 36    (1) 4M x 36    (1) 4M x 36

     40MB       (1) 2M x 36   (1) 4M x 36        NONE       (1) 4M x 36

     40MB       (1) 2M x 36   (1) 8M x 36        NONE          NONE

     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         JP16        JP23        JP24       JP25

    80486SX       Closed        Open        Open       2 & 3      1 & 2

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

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

    AM486DX       Closed        Open       Closed      1 & 2      2 & 3

    80486DX       Closed        Open        Open       1 & 2      1 & 2

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

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

   AM486DX2       Closed        Open        Open       1 & 2      2 & 3

   80486DX2       Closed        Open        Open       1 & 2      1 & 2

   AM486DX4       Closed        Open       Closed      1 & 2      2 & 3

   80486DX4       Closed        Open        Open       1 & 2      1 & 2

  Note: Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

     Speed           JP6            JP19          JP20           JP21

     25MHz        pins 2 & 3       Closed         Open           Open
                    closed

     33MHz        pins 1 & 2        Open         Closed         Closed
                    closed

    50iMHz        pins 2 & 3       Closed         Open           Open
                    closed

    66iMHz        pins 1 & 2        Open         Closed         Closed
                    closed

    75iMHz        pins 2 & 3       Closed         Open           Open
                    closed

    100iMHz       pins 1 & 2        Open         Closed         Closed
                    closed

