
SHUTTLE COMPUTER INTERNATIONAL, INC.

HOT 409 486 VLB

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          260mm x 220mm
I/O Options         32-bit VESA slots (2)
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery             J1       Turbo switch              JP28

  Power LED & keylock          J5       32-bit VESA slots (2)    S1 & S2

  Speaker                      J6       Reset switch               SW1

  Turbo LED                   JP24

                        USER CONFIGURABLE SETTINGS

                Function                      Jumper         Position

     Battery select internal                   J1           pins 1 & 2
                                                              closed

      Battery select external                   J1           pins 2 & 3
                                                              closed

     Monitor type select color                JP1            Closed

      Monitor type select monochrome           JP1             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) 1M x 9     (4) 256K 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

              CPU JUMPER CONFIGURATION/CLOCK GENERATOR IN U45

     CPU Type        JP10        JP11       JP12       JP16       JP23

    80486SX-25       Open        Open      pins 2 &   pins 2     Closed
                                              3        & 3

    80486SX-33      Closed       Open      pins 2 &   pins 2      Open
                                              3        & 3

    80487SX-25       Open      pins 2 &    pins 1 &   pins 2     Closed
                                  3        2, 3 & 4    & 3

    80486DX-25       Open      pins 1 &    pins 1 &   pins 2     Closed
                                  2        2. 3 & 4    & 3

    80486DX-33      Closed     pins 1 &    pins 1 &   pins 2      Open
                                  2        2, 3 & 4    & 3

    80486DX-50       Open      pins 1 &    pins 1 &   pins 1     Closed
                                  2        2, 3 & 4    & 2

   80486DX2-50       Open      pins 1 &    pins 1 &   pins 2     Closed
                                  2        2, 3 & 4    & 3

   80486DX2-66      Closed     pins 1 &    pins 1 &   pins 2      Open
                                  2        2, 3 & 4    & 3

  Note:Pins designated should be in the closed position.

                CPU JUMPER CONFIGURATION/OSCILLATOR IN U45

      CPU Type             JP11              JP12              JP16

     80486SX-25            Open           pins 2 & 3        pins 2 & 3

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

     80487SX-25         pins 2 & 3      pins 1 & 2, 3 &     pins 2 & 3
                                               4

     80486DX-25         pins 1 & 2      pins 1 & 2. 3 &     pins 2 & 3
                                               4

     80486DX-33         pins 1 & 2      pins 1 & 2, 3 &     pins 2 & 3
                                               4

     80486DX-50         pins 1 & 2      pins 1 & 2, 3 &     pins 1 & 2
                                               4

     80486DX2-50        pins 1 & 2      pins 1 & 2, 3 &     pins 2 & 3
                                               4

     80486DX2-66        pins 1 & 2      pins 1 & 2, 3 &     pins 2 & 3
                                               4

  Note:Pins designated should be in the closed position.

                    CACHE CONFIGURATION

     Size          Cache         Location         TAG

     64KB        (8) 8K x 8    Banks 0 & 1    (1) 8K x 8

     128KB      (4) 32K x 8       Bank 0      (1) 8K x 8

     256KB      (8) 32K x 8    Banks 0 & 1    (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

     Size           JP7            JP9           JP15            JP22

     64KB        pins 2 & 3        Open          Open            Open
                  closed

    128KB        pins 1 & 2       Closed        Closed           Open
                  closed

    256KB        pins 2 & 3       Closed        Closed          Closed
                  closed

            VESA BUS SPEED AND WAIT STATE CONFIGURATION

    CPU speed      Wait states          J20              J21

      33MHz      0 wait states        Closed          Closed

     > 33MHz       1 wait state         Open            Open

