
SHUTTLE COMPUTER INTERNATIONAL, INC.

HOT-557 (VER. 1.5)

Device Type          Mainboard
Processor            CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/AM K5/Pentium
Processor Speed      75/90/100/120/133/150/166/200MHz
Chip Set             Intel
Video Chip Set       None
Maximum Onboard      128MB (EDO & SDRAM supported)
Memory
Maximum Video Memory None
Cache                256/512KB
BIOS                 Award
Dimensions           280mm x 220mm
I/O Options          32-bit PCI slots (4), floppy drive interface, green PC
                     connector, IDE interfaces (2), parallel port, PS/2
                     mouse interface, serial ports (2), cache slot, IR
                     connector, USB connectors (2)
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Floppy drive interface     CN1       IR connector               JP3

  Serial port 1              CN2       Speaker                    J12

  Serial port 2              CN3       Power LED & keylock        J14

  Parallel port              CN4       Reset switch               JP12

  IDE interface 1             J6       Green PC connector         JP15

  IDE interface 2             J7       IDE interface LED          JP22

  USB connector 1            J10       Green PC LED               JP33

  USB connector 2            J11       32-bit PCI slots         PC1  PC4

  PS/2 mouse interface       J99       Cache slot                 SL1

  Chassis fan power          JP1

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Monitor type select EGA/VGA             JP7             Closed

      Monitor type select monochrome          JP7              Open

     Password normal operation               JP9              Open

      Password clear                          JP9             Closed

      Flash BIOS voltage select 12v           JP19          Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 5v            JP19          Pins 1 & 2
                                                              closed

     CMOS memory normal operation            JP21             Open

      CMOS memory clear                       JP21            Closed

     Factory configured - do not alter       JP39          Pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP43            Closed

     Factory configured - do not alter       JP44             Open

             SIMM CONFIGURATION

     Size          Bank 1        Bank 2

      8MB        (2) 1M x 36      None

     16MB        (2) 2M x 36      None

     16MB        (2) 1M x 36   (2) 1M x 36

     24MB        (2) 2M x 36   (2) 1M x 36

     32MB        (2) 4M x 36      None

     32MB        (2) 2M x 36   (2) 2M x 36

         SIMM CONFIGURATION (CONT)

     Size          Bank 1        Bank 2

     40MB        (2) 4M x 36   (2) 1M x 36

     48MB        (2) 4M x 36   (2) 2M x 36

     64MB        (2) 8M x 36      None

     64MB        (2) 4M x 36   (2) 4M x 36

     72MB        (2) 8M x 36   (2) 1M x 36

     80MB        (2) 8M x 36   (2) 2M x 36

     96MB        (2) 8M x 36   (2) 4M x 36

     128MB       (2) 8M x 36   (2) 8M x 36

  Note: Board accepts EDO memory.

               DIMM CONFIGURATION

      Size          Bank 0          Bank 3

      8MB         (1) 1M x 64        None

      16MB        (1) 2M x 64        None

      16MB        (1) 1M x 64     (1) 1M x 64

      24MB        (1) 2M x 64     (1) 1M x 64

      32MB        (1) 4M x 64        None

      32MB        (1) 2M x 64     (1) 2M x 64

      40MB        (1) 4M x 64     (1) 1M x 64

      48MB        (1) 4M x 64     (1) 2M x 64

      64MB        (1) 8M x 64        None

      64MB        (1) 4M x 64     (1) 4M x 64

      72MB        (1) 8M x 64     (1) 1M x 64

      80MB        (1) 8M x 64     (1) 2M x 64

      96MB        (1) 8M x 64     (1) 4M x 64

     128MB        (1) 8M x 64     (1) 8M x 64

            Note: Board accepts SDRAM memory.

                            CACHE CONFIGURATION

          Size                   Bank 0                     SL1

          256KB               (2) 32K x 32             Not installed

          512KB               (2) 32K x 32        256KB module installed

      CACHE CONFIGURATION

      Size          Bank 0

     256KB       (2) 32K x 32

     512KB       (2) 64K x 32

                  CACHE JUMPER CONFIGURATION

        Size                 JP29                 JP30

        256KB          Pins 2 & 3 closed   Pins 2 & 3 closed

        512KB          Pins 1 & 2 closed   Pins 1 & 2 closed

                       CPU SPEED SELECTION (CX 6X86)

  CPU speed      Clock      Multiplier     JP23       JP24        JP36
                speed

   120MHz       50MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                4, 5 & 6

   133MHz       55MHz           2x         1 & 2     2 & 3     1 & 2, 5 &
                                                                   6

   150MHz       60MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                   4

   166MHz       66MHz           2x         1 & 2     2 & 3     3 & 4, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86)

  CPU speed      Clock      Multiplier     JP23       JP24        JP36
                speed

   120MHz       50MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                4, 5 & 6

   133MHz       55MHz           2x         1 & 2     2 & 3     1 & 2, 5 &
                                                                   6

   150MHz       60MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                   4

   166MHz       66MHz           2x         1 & 2     2 & 3     3 & 4, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86L)

  CPU speed      Clock      Multiplier     JP23       JP24        JP36
                speed

   120MHz       50MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                4, 5 & 6

   133MHz       55MHz           2x         1 & 2     2 & 3     1 & 2, 5 &
                                                                   6

   150MHz       60MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                   4

   166MHz       66MHz           2x         1 & 2     2 & 3     3 & 4, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86L)

  CPU speed      Clock      Multiplier     JP23       JP24        JP36
                speed

   120MHz       50MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                4, 5 & 6

   133MHz       55MHz           2x         1 & 2     2 & 3     1 & 2, 5 &
                                                                   6

   150MHz       60MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                   4

   166MHz       66MHz           2x         1 & 2     2 & 3     3 & 4, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

  CPU speed      Clock      Multiplier     JP23       JP24        JP36
                speed

    75MHz       50MHz          1.5x        2 & 3     2 & 3     1 & 2, 3 &
                                                                4, 5 & 6

    90MHz       60MHz          1.5x        2 & 3     2 & 3     1 & 2, 3 &
                                                                   4

   100MHz       66MHz          1.5x        2 & 3     2 & 3     3 & 4, 5 &
                                                                   6

   120MHz       60MHz          1.5x        2 & 3     2 & 3     1 & 2, 3 &
                                                                   4

   133MHz       66MHz          1.5x        2 & 3     2 & 3     3 & 4, 5 &
                                                                   6

   150MHz       60MHz         1.75x        1 & 2     1 & 2     1 & 2, 3 &
                                                                   4

   166MHz       66MHz         1.75x        1 & 2     1 & 2     3 & 4, 5 &
                                                                   6

   200MHz       66MHz           2x         1 & 2     1 & 2     3 & 4, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

  CPU speed      Clock      Multiplier     JP23       JP24        JP36
                speed

    75MHz       50MHz          1.5x        2 & 3     2 & 3     1 & 2, 3 &
                                                                4, 5 & 6

    90MHz       60MHz          1.5x        2 & 3     2 & 3     1 & 2, 3 &
                                                                   4

   100MHz       66MHz          1.5x        2 & 3     2 & 3     3 & 4, 5 &
                                                                   6

   120MHz       60MHz           2x         1 & 2     2 & 3     1 & 2, 3 &
                                                                   4

   133MHz       66MHz           2x         1 & 2     2 & 3     3 & 4, 5 &
                                                                   6

   150MHz       60MHz          2.5x        1 & 2     1 & 2     1 & 2, 3 &
                                                                   4

   166MHz       66MHz          2.5x        1 & 2     1 & 2     3 & 4, 5 &
                                                                   6

   180MHz       60MHz           3x         2 & 3     1 & 2     1 & 2, 3 &
                                                                   4

   200MHz       66MHz           3x         2 & 3     1 & 2     3 & 4, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                      CPU VOLTAGE SELECTION (SINGLE)

    Voltage          J100          J105           J107           J108

     2.82v           Open          3 & 4          Open       1 & 3, 2 & 4

     2.94v          2 & 4          3 & 4          Open       1 & 3, 2 & 4

     3.10v          3 & 4          3 & 4          Open       1 & 3, 2 & 4

     3.33v          1 & 3          3 & 4          Open       1 & 3, 2 & 4

     3.53v        1 & 3, 2 &       3 & 4          Open       1 & 3, 2 & 4
                      4

  Note: Pins designated should be in the closed position.

                       CPU VOLTAGE SELECTION (DUAL)

    Voltage       V core       J100       J105        J107        J108

     2.82v        3.33v        Open       3 & 4      1 & 3, 2     Open
                                                       & 4

     2.82v        3.44v        Open       2 & 4      1 & 3, 2     Open
                                                       & 4

     2.94v        3.33v       2 & 4       3 & 4      1 & 3, 2     Open
                                                       & 4

     2.94v        3.44v       2 & 4       2 & 4      1 & 3, 2     Open
                                                       & 4

     3.10v        3.33v       3 & 4       3 & 4      1 & 3, 2     Open
                                                       & 4

     3.10v        3.44v       3 & 4       2 & 4      1 & 3, 2     Open
                                                       & 4

  Note: Pins designated should be in the closed position.

