
FIRST INTERNATIONAL COMPUTER, INC.

LEO 486-VIP

Processor     80486SX/80486SL/80487SX/CX486DX/80486DX/80486DX2

              80486DX4/Pentium Overdrive
Processor     25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set      VIA
Max. Onboard  96MB
DRAM
Cache         64/128/256KB
BIOS          Award
Dimensions    219mm x 271mm
I/O Options   32-bit VESA local bus slots (2), 32-bit PCI slots (3), PS/2
              mouse port
NPU Options   None

[Image]

                                CONNECTIONS

  Purpose                    Location    Purpose               Location

  PS/2 mouse port               CN2      Green status LED         J5

  3.3V daughter board           CN5      32-bit VESA Local        S1
  (80486DX4 only)                        bus slot

  Turbo switch                  CN6      32-bit VESA Local        S2
                                         bus slot

  Turbo LED                     CN7      32-bit PCI slot         PCI1

  Reset switch                  CN8      32-bit PCI slot         PCI2

  Speaker                       CN9      32-bit PCI slot         PCI3

  Power LED & keylock          CN10

                        USER CONFIGURABLE SETTINGS

                 Function                      Jumper         Position

     Monitor type select color                  J2            Closed

      Monitor type select                        J2             Open
      monochrome/EGA/VGA

     CMOS memory normal operation               J3             Open

      CMOS memory clear                          J3            Closed

     Normal operation                           J7             Open

      Password clear                             J7            Closed

     CPU select Cyrix DX                       JT1          pins 1 & 2
                                                               closed

      CPU select Cyrix DX2                      JT1          pins 2 & 3
                                                               closed

     80486DX4 3X mode                          JT2          pins 1 & 2
                                                               closed

      80486DX4 2X mode                          JT2          pins 2 & 3
                                                               closed

     Pentium Overdrive internal                JT3          pins 1 & 2
      write-back cache                                         closed

      Pentium Overdrive internal                JT3          pins 2 & 3
      write-through cache                                      closed

     Pentium Overdrive disabled                JT4          pins 1 & 2
                                                               closed

      Pentium Overdrive enabled                 JT4          pins 2 & 3
                                                               closed

     Normal operation                          JT5          pins 1 & 2
                                                               closed

      For card that uses A31                    JT5          pins 2 & 3
                                                               closed

     Address area is proogrammed in            JT6          pins 1 & 2
      VT82C505                                                 closed

      Supports IRQ15 when SMI# is used          JT6          pins 2 & 3
                                                               closed

     Factory configured - do not alter         JT7          pins 1 & 2
                                                               closed

     Factory configured - do not alter         JT8          pins 1 & 2
                                                               closed

     Factory configured - do not alter         JT9          pins 1 & 2
                                                               closed

     Normal operation                          JT10         pins 2 & 3
                                                               closed

      PCI IDE card is installed                 JT10         pins 1 & 2
                                                               closed

     Factory configured - do not alter         JT11         pins 1 & 2
                                                               closed

     Factory configured - do not alter         JX2          pins 2 & 3
                                                               closed

  NoteJumper JT5 and JT6 cannot be closed at the same time.

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       1MB         (4) 256K x 9         NONE            NONE

       1MB             NONE        (1) 256K x 36        NONE

       1MB             NONE             NONE        (1) 256K x 36

       2MB         (4) 256K x 9    (1) 256K x 36        NONE

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

       2MB         (4) 256K x 9         NONE        (1) 256K x 36

       3MB         (4) 256K x 9    (1) 256K x 36    (1) 256K x 36

       4MB          (4) 1M x 9          NONE            NONE

       4MB             NONE         (1) 1M x 36         NONE

       4MB             NONE             NONE         (1) 1M x 36

       5MB         (4) 256K x 9     (1) 1M x 36         NONE

       5MB         (4) 256K x 9         NONE         (1) 1M x 36

       5MB          (4) 1M x 9      (1) 1M x 36         NONE

       5MB          (4) 1M x 9          NONE         (1) 1M x 36

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

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

                  DRAM CONFIGURATION (CONTINUED)

      Size            Bank 0           Bank 1          Bank 2

       6MB         (4) 256K x 9     (1) 1M x 36     (1) 256K x 36

       6MB         (4) 256K x 9    (1) 256K x 36     (1) 1M x 36

       6MB         (4) 256K x 9    (1) 256K x 36    (1) 256K x 36

       8MB         (4) 256K x 9     (1) 1M x 36         NONE

       8MB         (4) 256K x 9         NONE         (1) 1M x 36

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

       9MB         (4) 256K x 9     (1) 1M x 36      (1) 1M x 36

       9MB         (4) 256K x 9    (1) 256K x 36     (1) 1M x 36

       9MB         (4) 256K x 9     (1) 1M x 36     (1) 256K x 36

      12MB         (4) 256K x 9     (1) 1M x 36      (1) 1M x 36

      16MB          (4) 4M x 9          NONE            NONE

      16MB             NONE         (1) 4M x 36         NONE

      16MB             NONE             NONE         (1) 4M x 36

      17MB         (4) 256K x 9     (1) 4M x 36         NONE

      17MB         (4) 256K x 9         NONE         (1) 4M x 36

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

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

      17MB          (4) 4M x 9      (1) 1M x 36         NONE

      17MB          (4) 4M x 9          NONE        (1) 256K x 36

      18MB         (4) 256K x 9    (1) 256K x 36     (1) 4M x 36

      18MB         (4) 256K x 9     (1) 4M x 36     (1) 256K x 36

      18MB          (4) 4M x 9     (1) 256K x 36    (1) 256K x 36

      20MB        (1) 256K x 36     (1) 4M x 36         NONE

      20MB          (4) 1M x 9          NONE         (1) 4M x 36

      20MB          (4) 4M x 9      (1) 4M x 36         NONE

      20MB          (4) 4M x 9          NONE         (1) 4M x 36

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

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

      21MB         (4) 256K x 9     (1) 4M x 36      (1) 4M x 36

      21MB         (4) 256K x 9     (1) 4M x 36      (1) 4M x 36

      21MB          (4) 1M x 9      (1) 1M x 36      (1) 4M x 36

      21MB          (4) 1M x 9      (1) 4M x 36      (1) 1M x 36

      21MB          (4) 4M x 9      (1) 1M x 36      (1) 4M x 36

      21MB          (4) 4M x 9      (1) 4M x 36      (1) 1M x 36

      24MB          (4) 1M x 9      (1) 4M x 36      (1) 4M x 36

      24MB          (4) 1M x 9      (1) 4M x 36      (1) 4M x 36

      24MB          (4) 4M x 9      (1) 4M x 36      (1) 4M x 36

      32MB          (4) 4M x 9      (1) 4M x 36         NONE

      32MB          (4) 4M x 9          NONE         (1) 4M x 36

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

      32MB             NONE         (1) 4M x 36         NONE

      32MB             NONE             NONE        (1) 16M x 36

      33MB         (4) 256K x 9     (1) 4M x 36      (1) 4M x 36

      33MB          (4) 4M x 9      (1) 1M x 36      (1) 4M x 36

      33MB          (4) 4M x 9      (1) 4M x 36      (1) 1M x 36

                  DRAM CONFIGURATION (CONTINUED)

      Size            Bank 0           Bank 1          Bank 2

      36MB          (4) 1M x 9      (1) 4M x 36      (1) 4M x 36

      36MB          (4) 4M x 9      (1) 1M x 36      (1) 4M x 36

      36MB          (4) 4M x 9      (1) 4M x 36      (1) 1M x 36

      48MB          (4) 4M x 9      (1) 4M x 36      (1) 4M x 36

      64MB         (4) 16M x 9          NONE            NONE

      65MB         (4) 16M x 9     (1) 256K x 36        NONE

      65MB         (4) 16M x 9          NONE         (1) 1M x 36

      66MB         (4) 16M x 9     (1) 256K x 36    (1) 256K x 36

      68MB         (4) 16M x 9      (1) 1M x 36         NONE

      68MB         (4) 16M x 9          NONE         (1) 1M x 36

      69MB         (4) 16M x 9     (1) 256K x 36     (1) 1M x 36

      69MB         (4) 16M x 9      (1) 1M x 36     (1) 256K x 36

      72MB         (4) 16M x 9      (1) 1M x 36      (1) 1M x 36

      80MB         (4) 16M x 9      (1) 4M x 36         NONE

      80MB         (4) 16M x 9          NONE         (1) 4M x 36

      81MB         (4) 16M x 9     (1) 256K x 36     (1) 4M x 36

      81MB         (4) 16M x 9      (1) 16M x 36     (1) 1M x 36

      84MB         (4) 16M x 9      (1) 4M x 36      (1) 4M x 36

      84MB         (4) 16M x 9      (1) 4M x 36      (1) 4M x 36

      96MB         (4) 16M x 9      (1) 4M x 36      (1) 4M x 36

                          KEYBOARD CONFIGURATION

   Select          JRN4           JRN5           JRN6           JRN7

  Internal      Installed          Not         Installed         Not
                               installed                      installed

  External          Not        Installed          Not         Installed
                installed                      installed

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

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

     128KB      (4) 32K x 8        NONE       (1) 8K x 8

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

                        CACHE JUMPER CONFIGURATION

      Size               JS1               JS2                 JS3

      64KB            pins 1 & 2        pins 1 & 2      pins 1 & 2 closed
                       closed             closed

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

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

                          CPU TYPE CONFIGURATION

      Type          JC2      JC3       JC4      JP1      JT12      JX1

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

     80487SX       pins 1   pins 1    pins 2   pins 1   pins 1    pins 1
                    & 2      & 2       & 3      & 2      & 2       & 2

     CX486S        pins 2   pins 2    Open     pins 2   pins 2    pins 2
                    & 3      & 3                & 3      & 3       & 3

     Intel SL       N/A      N/A       N/A     pins 2   pins 1    pins 2
    enhanced                                    & 3      & 2       & 3

    AM486DXL        N/A      N/A       N/A     pins 1   pins 1    pins 1
                                                & 2      & 2       & 2

     80486DX       pins 1   pins 1    pins 1   pins 1   pins 1    pins 1
                    & 2      & 2       & 2      & 2      & 2       & 2

     CX486DX       pins 1   pins 1    pins 1   pins 2   pins 2    pins 2
                    & 2      & 2       & 2      & 3      & 3       & 3

    80486DX2       pins 1   pins 1    pins 1   pins 1   pins 1    pins 1
                    & 2      & 2       & 2      & 2      & 2       & 2

    80486DX4       pins 1   pins 1    pins 1   pins 1   pins 1    pins 1
                    & 2      & 2       & 2      & 2      & 2       & 2

     Pentium       pins 1   pins 1    pins 2   pins 1   pins 1    pins 1
    Overdrive       & 2      & 2       & 3      & 2      & 2       & 2

  Note:Pins designated should be in the closed position.

                    CPU TYPE CONFIGURATION (CONTINUED)

     Type        JN1       JN2        JRN1         JRN2          JRN3

   80486SX      Open      Open        N/A           N/A           N/A

   80487SX      Open      Open        N/A           N/A           N/A

    CX486S      Open      Open         Not          Not        Installed
                                   installed     installed

   Intel SL     Open      Open         Not       Installed        Not
   enhanced                        installed                   installed

   AM486DXL     Open      Open     Installed        Not           Not
                                                 installed     installed

   80486DX      Open      Open         Not          Not           Not
                                   installed     installed     installed

   CX486DX      Open      Open         Not          Not        Installed
                                   installed     installed

   80486DX2     Open      Open         Not          Not           Not
                                   installed     installed     installed

   80486DX4     Open      Open         Not       Installed        Not
                                   installed                   installed

    Pentium     Closed    Closed       Not       Installed        Not
  Overdrive                        installed                   installed

                          CPU SPEED CONFIGURATION

    Speed          JCK0           JCK1           JCK2            JCK3

    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

            VESA WAIT STATE/BUS SPEED (ID2 & ID3) CONFIGURATION

    CPU speed        Wait states            JV1                JV2

     < 33MHz        0 wait states        pins 1 & 2         pins 1 & 2
                                          closed             closed

     > 33MHz         1 wait state        pins 2 & 3         pins 2 & 3
                                          closed             closed

