
SHUTTLE COMPUTER INTERNATIONAL, INC.

HOT-403H

Processor           80486SX/80487SX/80486DX/80486DX2
Processor Speed     25/33/50(internal)/50/66(internal)MHz
Chip Set            OPTI
Max. Onboard DRAM   32MB
Cache               64/128/256KB
BIOS                AMI
Dimensions          240mm x 220mm
I/O Options         None
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                 Location      Purpose                Location

  External battery           CN1        Speaker                  CN4

  Turbo LED                  CN2        Turbo switch             CN5

  Power LED & keylock        CN3        Reset switch             CN6

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper          Position

     Battery type select internal            CN1       pins 2 & 3 closed

      Batter type select external             CN1            Closed

     Monitor type select color               JP1            Closed

      Monitor type select monochrome          JP1             Open

     CPU speed select iOSC/2 (See CPU        JP2       pins 2 & 3 closed
      SPEED table below)

      CPU speed select iOSC/1 (See CPU        JP2       pins 1 & 2 closed
      SPEED table below)

     Bus speed select ATCLK/6                JP6            Closed

      Bus speed select ATCLK/4                JP6             Open

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      20MB        (4) 1M x 9      (4) 4M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                    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           JP3            JP4            JP5             JP7

    64KB        pins 2 & 3     pins 2 & 3     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

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

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

                          CPU TYPE CONFIGURATION

       Type               JPA               JPB                JPC

      80486SX             Open           pins 1 & 2            Open
                                           closed

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

      80486DX            Closed          pins 2 & 3         pins 1 & 2
                                           closed             closed

     80486DX2            Closed          pins 2 & 3         pins 1 & 2
                                           closed             closed

                          CPU SPEED CONFIGURATION

      Speed              JP2                JP9               JP10

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

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

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

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

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

