
FIRST INTERNATIONAL COMPUTER, INC.

486-PVT (REV. B1)

Processor  CX486SX/80486SX/SL80486SX/AM486DX/AM486DXSL/80486DX/CX486DX/
           CX486DXV/CX486DX2/CX486DX2VAM486DX2/AM486DX2SL/80486DX2/
           80486DX4/P24CT/P24D/Pentium Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   VIA
Max.       128MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       Award
Dimensions 254mm x 218mm
I/O        32-bit VESA local bus slots (2), green PC connector
Options
NPU        None
Options


[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Daughter board             CN6       Speaker                     J8
  connector

  Green PC LED                J3       Power LED & keylock         J9

  Green PC connector          J4       Green PC connector         J10

  Turbo LED                   J5       Chassis fan power          J11

  Turbo switch                J6       32-bit VESA local bus   SL1 & SL2
                                       slots

  Reset switch                J7

                        USER CONFIGURABLE SETTINGS

                 Function                      Jumper         Position

      AMD CPU speed select 2x                    J2            Closed

      AMD CPU speed select 3x                    J2             Open

      AMD CPU type select DX2                   J12             Open

      AMD CPU type select DX4                   J12            Closed

      CMOS memory normal operation              JCP             Open

      CMOS memory clear                         JCP            Closed

      Monitor type select                       JP1             Open
      monochrome/EGA/VGA

      Monitor type select color                 JP1            Closed

      Factory configured - do not alter         JP2             N/A

      CPU type select all CPU types             JP3          pins 1 & 2
                                                               closed

      CPU type select Cyrix CPU only            JP3          pins 2 & 3
                                                               closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

     10MB       (1) 256K x     (1) 256K x    (1) 1M x 36     (1) 1M x 36
                    36             36

     10MB      (1) 1M x 36    (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                  36

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

     21MB       (1) 256K x    (1) 1M x 36    (1) 4M x 36        NONE
                    36

     21MB       (1) 256K x    (1) 4M x 36    (1) 1M x 36        NONE
                    36

     21MB      (1) 1M x 36     (1) 256K x    (1) 4M x 36        NONE
                                   36

     21MB      (1) 1M x 36    (1) 4M x 36     (1) 256K x        NONE
                                                  36

     22MB      (1) 1M x 36    (1) 4M x 36     (1) 256K x    (1) 256K x 36
                                                  36

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

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

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

     25MB       (1) 256K x    (1) 4M x 36    (1) 1M x 36     (1) 1M x 36
                    36

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

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

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

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

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

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

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

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1         Bank 2         Bank 3

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

     34MB        (1) 256K x     (1) 256K x    (1) 4M x 36    (1) 4M x 36
                     36            36

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

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

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

     37MB        (1) 256K x    (1) 1M x 36    (1) 4M x 36    (1) 4M x 36
                     36

     37MB       (1) 1M x 36     (1) 256K x    (1) 4M x 36    (1) 4M x 36
                                   36

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

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

     49MB        (1) 256K 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

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

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

     66MB        (1) 256K x     (1) 256K x    (1) 8M x 36    (1) 8M x 36
                     36            36

     66MB        (1) 256K x    (1) 8M x 36     (1) 256K x    (1) 8M x 36
                     36                           36

     66MB       (1) 8M x 36    (1) 8M x 36     (1) 256K x   (1) 256K x 36
                                                  36

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

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

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

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

     69MB        (1) 256K x    (1) 8M x 36    (1) 1M x 36    (1) 8M x 36
                     36

     69MB       (1) 1M x 36     (1) 256K x    (1) 8M x 36    (1) 8M x 36
                                   36

     69MB       (1) 1M x 36    (1) 8M x 36     (1) 256K x    (1) 8M x 36
                                                  36

     72MB       (1) 1M x 36    (1) 1M x 36    (1) 8M x 36    (1) 8M x 36

     72MB       (1) 1M x 36    (1) 8M x 36    (1) 1M x 36    (1) 8M x 36

     72MB       (1) 8M x 36    (1) 8M x 36    (1) 1M x 36    (1) 1M x 36

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

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

     81MB        (1) 256K x    (1) 4M x 36    (1) 8M x 36    (1) 8M x 36
                     36

     81MB        (1) 256K x    (1) 8M x 36    (1) 4M x 36    (1) 8M x 36
                     36

     84MB       (1) 1M x 36    (1) 4M x 36    (1) 8M x 36    (1) 8M x 36

     84MB       (1) 1M x 36    (1) 8M x 36    (1) 4M x 36    (1) 8M x 36

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

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

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

                            CACHE CONFIGURATION

          Size                    Bank 0                    TAG

          128KB                (4) 32K x 8          (1) 8K x 8 or (1) 32K
                                                            x 8

          256KB                (4) 64K x 8              (1) 32K x 8

          512KB                (4) 128K x 8             (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 JS1                  JS2

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

        256KB          pins 2 & 3 closed   pins 1 & 2 closed

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

                          CPU TYPE CONFIGURATION

     Type         JC1         JC2         JC3         JC4          JC5

   CX486SX       2 & 3       2 & 3       1 & 2        Open        2 & 3

   80486SX       2 & 3       2 & 3       1 & 2        Open        1 & 2

  SL80486SX      2 & 3       2 & 3       1 & 2        Open        1 & 2

   AM486DX       1 & 2       1 & 2       1 & 2        Open        1 & 2

  AM486DXSL      1 & 2       1 & 2       1 & 2        Open        1 & 2

   80486DX       1 & 2       1 & 2       1 & 2        Open        1 & 2

   CX486DX       1 & 2       1 & 2       1 & 2        Open        1 & 2

   CX486DXV      1 & 2       1 & 2       1 & 2        Open        2 & 3

   CX486DX2      1 & 2       1 & 2       1 & 2        Open        1 & 2

  CX486DX2V      1 & 2       1 & 2       1 & 2        Open        2 & 3

   AM486DX2      1 & 2       1 & 2       1 & 2        Open        1 & 2

  AM486DX2SL     1 & 2       1 & 2       1 & 2        Open        1 & 2

   80486DX2      1 & 2       1 & 2       1 & 2        Open        1 & 2

   80486DX4      1 & 2       1 & 2       1 & 2        Open        1 & 2

    P24CT        1 & 2       1 & 2       1 & 2       Closed       1 & 2

     P24D        1 & 2       1 & 2       1 & 2       Closed       1 & 2

     P24T        1 & 2       1 & 2       1 & 2       Closed       1 & 2

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

     Type           RN16           RN17          RN18            RN19

    CX486SX      Installed          Not           Not             Not
                                installed      installed      installed

    80486SX          Not            Not           Not         Installed
                 installed      installed      installed

   SL80486SX         Not            Not           Not         Installed
                 installed      installed      installed

    AM486DX          Not            Not        Installed          Not
                 installed      installed                     installed

    CX486DX      Installed          Not           Not             Not
                                installed      installed      installed

   CX486DXV      Installed          Not           Not             Not
                                installed      installed      installed

    80486DX          Not            Not           Not         Installed
                 installed      installed      installed

   SL80486DX         Not            Not           Not         Installed
                 installed      installed      installed

   AM486DX2          Not            Not        Installed          Not
                 installed      installed                     installed

   CX486DX2      Installed          Not           Not             Not
                                installed      installed      installed

   CX486DX2V     Installed          Not           Not             Not
                                installed      installed      installed

   80486DX2          Not            Not           Not         Installed
                 installed      installed      installed

  SL80486DX2         Not            Not           Not         Installed
                 installed      installed      installed

   80486DX4          Not            Not           Not         Installed
                 installed      installed      installed

   AM486DX4          Not            Not        Installed          Not
                 installed      installed                     installed

     P24D            Not        Installed         Not         Installed
                 installed                     installed

    Pentium          Not        Installed         Not         Installed
   Overdrive     installed                     installed

  Note: The locations of RN16 - RN19 are unidentified.

                          CPU SPEED CONFIGURATION

     Speed          JK1            JK2            JK3            JK4

     25MHz       pins 2 & 3     pins 1 & 2     pins 2 & 3     pins 1 & 2
                   closed         closed        closed          closed

     33MHz       pins 2 & 3     pins 2 & 3     pins 1 & 2     pins 1 & 2
                   closed         closed        closed          closed

     40MHz       pins 1 & 2     pins 1 & 2     pins 2 & 3     pins 1 & 2
                   closed         closed        closed          closed

    50iMHz       pins 2 & 3     pins 1 & 2     pins 2 & 3     pins 1 & 2
                   closed         closed        closed          closed

     50MHz       pins 2 & 3     pins 1 & 2     pins 2 & 3     pins 2 & 3
                   closed         closed        closed          closed

    66iMHz       pins 2 & 3     pins 2 & 3     pins 1 & 2     pins 1 & 2
                   closed         closed        closed          closed

    75iMHz       pins 2 & 3     pins 1 & 2     pins 2 & 3     pins 1 & 2
                   closed         closed        closed          closed

    100iMHz      pins 2 & 3     pins 2 & 3     pins 1 & 2     pins 1 & 2
                   closed         closed        closed          closed

                  CPU VOLTAGE CONFIGURATION

       Voltage               JCV1                 JCV2

         3v            pins 1 & 2 closed          Open

        3.3v           pins 2 & 3 closed          Open

        3.45v                Open                 Open

        3.6v                 Open          pins 1 & 2 closed

         4v                  Open          pins 2 & 3 closed

      VESA WAIT STATE CONFIGURATION

     Wait states             JV1

    0 wait states     pins 2 & 3 closed

    1 wait state      pins 1 & 2 closed

         BUS SPEED CONFIGURATION

      CPU speed              JV2

      <= 33MHz        pins 2 & 3 closed

       > 33MHz        pins 1 & 2 closed

                       DAUGHTER BOARD CONFIGURATION

               Setting                                 CN6

            Not installed                pins 1 & 2, 3 & 4, 13 & 14, 15 &
                                                    16 closed

              Installed                              Closed

