
FIRST INTERNATIONAL COMPUTER, INC.

486-VAL

Processor       80486SX/80487SX/80486DX/80486DX2
Processor Speed 20/25/33/50(internal)/50/66(internal)MHz
Chip Set        VIA
Max. Onboard    64MB
DRAM
Cache           64/128/256KB
BIOS            AMI
Dimensions      330mm x 218mm
I/O Options     Floppy drive interface, IDE interface, parallel port, PS/2
                mouse port,

                serial ports (2), VGA feature connector, VGA port
NPU Options     None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  PS/2 mouse port             CN1      IDE interface              CN10

  Serial port 1               CN3      IDE interace LED            J4

  Serial port 2               CN4      Turbo LED                   J7

  Parallel port               CN5      Turbo switch                J8

  VGA port                    CN6      Reset switch                J9

  Video feature               CN7      Speaker                     J10
  connector

  Floppy drive interface      CN9      Power LED & keylock         J11

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Real time clock normal operation         J1              Open

      Real time clock clear                    J1             Closed

     Flash BIOS write protect enabled         J2              Open

      Flash BIOS write protect disabled        J2             Closed

     Monitor type select color                J13            Closed

      Monitor type select monochrome,          J13             Open
      VGA or EGA

     I/O channel ready enabled                J30            Closed

      I/O channel ready disabled               J30             Open

     Factory configured - do not alter        JF1           pins 2 & 3
                                                              closed

     Factory configured - do not alter        JF2           pins 2 & 3
                                                              closed

     Factory configured - do not alter        JF3           pins 2 & 3
                                                              closed

     Keyboard IRQ set for AMI 8042 KF         JI1           pins 1 & 2
                                                              closed

      Keyboard IRQ set for another             JI1           pins 2 & 3
      version                                                 closed

     PS/2 mouse IRQ set for AMI 8042          JI2           pins 1 & 2
      KF                                                      closed

      PS/2 mouse IRQ set for another           JI2           pins 2 & 3
      version                                                 closed

     Local type tri-state                     JV2           pins 1 & 2
                                                              closed

      Local type level                         JV2           pins 2 & 3
                                                              closed

     Local access for DAC enabled             JV3           pins 1 & 2
                                                              closed

      A10 busline for DAC enabled              JV3           pins 2 & 3
                                                              closed

     Local bus select 86C805 enabled          JV4           pins 1 & 2
                                                              closed

      Local bus select 86C805 disabled         JV4           pins 2 & 3
                                                              closed

     Factory configured - do not alter        JV8              N/A

     Video interrupt select IRQ5              JV9           pins 1 & 2
                                                              closed

      Video interrupt select IRQ9              JV9           pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

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

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

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

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

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

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

                      DRAM CONFIGURATION (CONTINUED)

     Size         Bank 0        Bank 1         Bank 2          Bank 3

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

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

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

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

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

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

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

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

                           CACHE CONFIGURATION

     Size          Bank 0         Bank 1        TAG/M9         TAG/M14

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8        NONE

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

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8       NONE

                  CACHE JUMPER CONFIGURATION

        Size                 JS1                  JS2

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

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

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

                       CPU TYPE/SPEED CONFIGURATION

    Type/Speed       JC1      JC2       JC3      JC4      JK1       JK2

    80486SX/20      pins 2   pins 2    pins 2   Open     pins 1    pins 1
                     & 3      & 3       & 3               & 2       & 2

    80486SX/25      pins 2   pins 2    pins 2   Open     pins 1    pins 1
                     & 3      & 3       & 3               & 2       & 2

    80486SX/33      pins 2   pins 2    pins 2   Open     pins 2    pins 2
                     & 3      & 3       & 3               & 3       & 3

    80487SX/20      pins 1   pins 1    pins 2   pins 2   pins 1    pins 1
                     & 2      & 2       & 3      & 3      & 2       & 2

    80487SX/25      pins 1   pins 1    pins 2   pins 2   pins 1    pins 1
                     & 2      & 2       & 3      & 3      & 2       & 2

    80486DX/20      pins 1   pins 1    pins 1   pins 1   pins 1    pins 1
                     & 2      & 2       & 2      & 2      & 2       & 2

    80486DX/25      pins 1   pins 1    pins 1   pins 1   pins 1    pins 1
                     & 2      & 2       & 2      & 2      & 2       & 2

    80486DX/33      pins 1   pins 1    pins 1   pins 1   pins 2    pins 2
                     & 2      & 2       & 2      & 2      & 3       & 3

    80486DX/50      pins 1   pins 1    pins 1   pins 1   pins 2    pins 2
                     & 2      & 2       & 2      & 2      & 3       & 3

   80486DX2/50i     pins 1   pins 1    pins 1   pins 1   pins 1    pins 1
                     & 2      & 2       & 2      & 2      & 2       & 2

   80486DX2/66i     pins 1   pins 1    pins 1   pins 1   pins 2    pins 2
                     & 2      & 2       & 2      & 2      & 3       & 3

  Note:Pins designated should be in the closed position.

                            MONITOR TYPE SELECT

        Type               JV5               JV6               JV7

   640 x 480/60Hz       pins 2 & 3        pins 2 & 3        pins 2 & 3
                          closed           closed             closed

   640 x 480/70Hz       pins 1 & 2        pins 2 & 3        pins 2 & 3
                          closed           closed             closed

   800 x 600/60Hz       pins 2 & 3        pins 1 & 2        pins 2 & 3
                          closed           closed             closed

   800 x 600/70Hz       pins 1 & 2        pins 1 & 2        pins 2 & 3
                          closed           closed             closed

   800 x 600/56Hz       pins 2 & 3        pins 2 & 3        pins 1 & 2
                          closed           closed             closed

  1024 x 768/43Hz       pins 1 & 2        pins 2 & 3        pins 1 & 2
                          closed           closed             closed

  1024 x 768/60Hz       pins 2 & 3        pins 1 & 2        pins 1 & 2
                          closed           closed             closed

  1024 x 768/70Hz       pins 1 & 2        pins 1 & 2        pins 1 & 2
                          closed           closed             closed

                            VRAM CONFIGURATION

      Size             Bank 0             Bank 1               JV1

      512KB           (4) 44256            None         pins 1 & 2 closed

       1MB            (4) 44256         (4) 44256       pins 2 & 3 closed

