
ADVANCED INTEGRATION RESEARCH, INC.

486EI REV. 1.2

Processor  80486SX/80487SX/P23T/80486DX/80486DX2/80486DX4/Pentium Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/80(internal)/100(internal)MHz
Speed
Chip Set   SIS
Max.       256MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       AMI
Dimensions 330mm x 218mm
I/O        32-bit VESA local bus slots (3)
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  Reset switch                J6        Turbo switch              J22

  Speaker                     J8        Turbo LED                 J24

  Power LED & keylock         J9        32-bit VESA local      SL1 - SL3
                                        bus slots

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

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

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

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

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

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

     5MB        (1) 512K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

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

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

     6MB       (1) 1M x 36     (1) 256K x     (1) 256K x        NONE
                                   36             36

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

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

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

     7MB       (1) 1M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     7MB        (1) 256K x     (1) 512K x     (1) 512K x    (1) 512K x 36
                    36             36             36

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

     8MB       (1) 1M x 36     (1) 512K x     (1) 512K x        NONE
                                   36             36

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

     8MB        (1) 512K x     (1) 512K x     (1) 512K x    (1) 512K x 36
                    36             36             36

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

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

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

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

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

     10MB      (1) 1M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

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

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

     11MB      (1) 2M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     12MB      (1) 2M x 36     (1) 512K x     (1) 512K x        NONE
                                   36             36

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

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

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

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

     14MB      (1) 2M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

     14MB       (1) 512K x    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36
                    36

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

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

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

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

     17MB       (1) 256K x    (1) 2M x 36    (1) 2M x 36        NONE
                    36

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

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

     18MB      (1) 4M x 36     (1) 512K x        NONE           NONE
                                   36

     18MB       (1) 512K x    (1) 2M x 36    (1) 2M x 36        NONE
                    36

     18MB       (1) 512K x    (1) 4M x 36        NONE           NONE
                    36

     19MB      (1) 4M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     20MB      (1) 4M x 36     (1) 512K x     (1) 512K x        NONE
                                   36             36

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

     20MB      (1) 2M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     20MB      (1) 1M x 36    (1) 2M x 36    (1) 2M x 36        NONE

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

     22MB      (1) 4M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

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

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

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

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

     25MB       (1) 256K x    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36
                    36

     26MB       (1) 512K x    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36
                    36

     28MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     28MB      (1) 1M x 36    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36

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

     32MB      (1) 4M x 36    (1) 2M x 36    (1) 2M x 36        NONE

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

     32MB      (1) 2M x 36    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36

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

     33MB       (1) 256K x    (1) 4M x 36    (1) 4M x 36        NONE
                    36

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

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

     34MB      (1) 8M x 36     (1) 512K x        NONE           NONE
                                   36

     34MB       (1) 512K x    (1) 4M x 36    (1) 4M x 36        NONE
                    36

     34MB       (1) 512K x    (1) 8M x 36        NONE           NONE
                    36

     35MB      (1) 8M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     36MB      (1) 8M x 36     (1) 512K x     (1) 512K x        NONE
                                   36             36

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

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

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

     38MB      (1) 8M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

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

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

     40MB      (1) 4M x 36    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1         Bank 2         Bank 3

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

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

     44MB       (1) 8M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     48MB       (1) 8M x 36    (1) 2M x 36    (1) 2M x 36       NONE

     48MB       (1) 8M x 36    (1) 4M x 36       NONE           NONE

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

     48MB       (1) 4M x 36    (1) 8M x 36       NONE           NONE

     49MB        (1) 256K x    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36
                     36

     50MB        (1) 512K x    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36
                     36

     52MB       (1) 1M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     56MB       (1) 8M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     56MB       (1) 2M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     64MB       (1) 8M x 36    (1) 4M x 36    (1) 4M x 36       NONE

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

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

     64MB       (1) 16M x 36      NONE           NONE           NONE

     65MB        (1) 256K x    (1) 8M x 36    (1) 8M x 36       NONE
                     36

     65MB       (1) 16M x 36    (1) 256K x       NONE           NONE
                                   36

     66MB        (1) 512K x    (1) 8M x 36    (1) 8M x 36       NONE
                     36

     66MB       (1) 16M x 36    (1) 256K x     (1) 256K x       NONE
                                   36             36

     66MB       (1) 16M x 36    (1) 512K x       NONE           NONE
                                   36

     67MB       (1) 16M x 36    (1) 256K x     (1) 256K x   (1) 256K x 36
                                   36             36

     68MB       (1) 1M x 36    (1) 8M x 36    (1) 8M x 36       NONE

     68MB       (1) 16M x 36    (1) 512K x     (1) 512K x       NONE
                                   36             36

     68MB       (1) 16M x 36   (1) 1M x 36       NONE           NONE

     70MB       (1) 16M x 36    (1) 512K x     (1) 512K x   (1) 512K x 36
                                   36             36

     72MB       (1) 2M x 36    (1) 8M x 36    (1) 8M x 36       NONE

     72MB       (1) 16M x 36   (1) 1M x 36    (1) 1M x 36       NONE

     72MB       (1) 16M x 36   (1) 2M x 36       NONE           NONE

     76MB       (1) 16M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     80MB       (1) 16M x 36   (1) 2M x 36    (1) 2M x 36       NONE

     80MB       (1) 16M x 36   (1) 4M x 36       NONE           NONE

     80MB       (1) 8M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     80MB       (1) 4M x 36    (1) 8M x 36    (1) 8M x 36       NONE

     88MB       (1) 16M x 36   (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     96MB       (1) 16M x 36   (1) 4M x 36    (1) 4M x 36       NONE

     96MB       (1) 16M x 36   (1) 8M x 36       NONE           NONE

     96MB       (1) 8M x 36    (1) 8M x 36    (1) 8M x 36       NONE

     97MB        (1) 256K x    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36
                     36

     98MB        (1) 512K x    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36
                     36

    100MB       (1) 1M x 36    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

    104MB       (1) 2M x 36    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

    112MB       (1) 16M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     112MB       (1) 4M x 36   (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

     128MB       (1) 16M x 36  (1) 16M x 36       NONE           NONE

     128MB       (1) 8M x 36   (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

     192MB       (1) 16M x 36  (1) 16M x 36   (1) 16M x 36       NONE

     256MB       (1) 16M x 36  (1) 16M x 36   (1) 16M x 36   (1) 16M x 36

              CACHE CONFIGURATION

      Size          Bank 0          Bank 1

     128KB        (4) 32K x 8        NONE

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

     512KB        (4) 128K x 8       NONE

                        CACHE JUMPER CONFIGURATION

      Size               JC4               JC5                 JC9

      128KB           pins 2 & 3        pins 1 & 2      pins 1 & 2 closed
                       closed             closed

      256KB           pins 1 & 2        pins 1 & 2      pins 4 & 5 closed
                       closed             closed

      512KB           pins 2 & 3        pins 2 & 3      pins 1 & 2 closed
                       closed             closed

                          CPU TYPE CONFIGURATION

        Type                J1                J2                J3

       80486SX             Open              Open            pins 2 & 3
                                                              closed

        P23T              Closed          pins 2 & 3         pins 1 & 2
                                            closed            closed

       80487SX            Closed          pins 2 & 3         pins 1 & 2
                                            closed            closed

       80486DX            Closed          pins 1 & 2         pins 1 & 2
                                            closed            closed

      80486DX2            Closed          pins 1 & 2         pins 1 & 2
                                            closed            closed

      80486DX4            Closed          pins 1 & 2         pins 1 & 2
                                            closed            closed

  Pentium Overdrive       Closed          pins 2 & 3         pins 1 & 2
                                            closed            closed

          CPU SPEED CONFIGURATION

   Speed      J01        J02        JL2

   25MHz     Closed     Closed     Open

   33MHz      Open      Closed     Open

   40MHz     Closed      Open     Closed

  50iMHz     Closed     Closed     Open

   50MHz      Open       Open     Closed

  66iMHz      Open      Closed     Open

  80iMHz     Closed      Open     Closed

  100iMHz     Open      Closed     Open

               CPU VOLTAGE CONFIGURATION

          Voltage                      JP12

            3.3v             pins 3 & 5, 4 & 6 closed

             5v              pins 1 & 3, 2 & 4 closed

