
SHUTTLE COMPUTER INTERNATIONAL, INC.

HOT-555A

Device Type       Mainboard
Processor         CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/AM K5/Pentium
Processor Speed   75/90/100/120/125/133/150/166/180/200MHz
Chip Set          Intel
Video Chip Set    None
Maximum Onboard   128MB (EDO & SDRAM supported)
Memory
Maximum Video     None
Memory
Cache             256/512KB
BIOS              Award
Dimensions        230mm 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), IR connector, USB
                  connectors (2)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Floppy drive interface     CN1       Power LED & keylock        J14

  Serial port 1              CN2       PS/2 mouse interface       J99

  Serial port 2              CN3       Chassis fan power          JP1

  Parallel port              CN4       IR connector               JP3

  IDE interface 1             J6       Reset switch               JP12

  IDE interface 2             J7       Green PC connector         JP15

  USB connector              J10       Green PC LED               JP17

  USB connector              J11       IDE interface LED          JP22

  Speaker                    J12       32-bit PCI slots         PC1  PC4

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Flash BIOS voltage select 12v           JP18          Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5v            JP18          Pins 2 & 3
                                                              closed

     CMOS memory normal operation            JP45            Closed

      CMOS memory clear                       JP45             Open

             SIMM CONFIGURATION

     Size          Bank 0        Bank 1

      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

     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 2          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

     256KB       (2) 32K x 32

     512KB       (2) 64K x 32

                       CPU SPEED SELECTION (CX 6X86)

  CPU speed      Clock       Multiplier      JPA       JPB        JP37
                speed

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

   133MHz       55MHz            2x         1 & 2     2 & 3    3 & 4, 5 &
                                                                   6

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86)

  CPU speed      Clock       Multiplier      JPA       JPB        JP37
                speed

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

   133MHz       55MHz            2x         1 & 2     2 & 3    3 & 4, 5 &
                                                                   6

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86L)

  CPU speed      Clock       Multiplier      JPA       JPB        JP37
                speed

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

   133MHz       55MHz            2x         1 & 2     2 & 3    3 & 4, 5 &
                                                                   6

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86L)

  CPU speed      Clock       Multiplier      JPA       JPB        JP37
                speed

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

   133MHz       55MHz            2x         1 & 2     2 & 3    3 & 4, 5 &
                                                                   6

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

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

  CPU speed      Clock       Multiplier      JPA       JPB        JP37
                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    1 & 2, 5 &
                                                                   6

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

   133MHz       66MHz           1.5x        2 & 3     2 & 3    1 & 2, 5 &
                                                                   6

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

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

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

  CPU speed      Clock       Multiplier      JPA       JPB        JP37
                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    1 & 2, 5 &
                                                                   6

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

   125MHz       50MHz           2.5x        1 & 2     1 & 2    1 & 2, 3 &
                                                                4, 5 & 6

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

  CPU speed       Clock      Multiplier      JPA       JPB        JP37
                 speed

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

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

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

   Voltage        JP33         JP34            JP39             JP43

     2.8v         Open        Closed           Open          Pins 1 & 2
                                                               closed

     2.9v         Open        Closed        Pins 2 & 4       Pins 1 & 2
                                              closed           closed

     3.1v         Open        Closed        Pins 3 & 4       Pins 1 & 2
                                              closed           closed

     3.3v         Open        Closed        Pins 1 & 3       Pins 1 & 2
                                              closed           closed

     3.5v         Open        Closed       Pins 1 & 3, 2     Pins 1 & 2
                                            & 4 closed         closed

                       CPU VOLTAGE SELECTION (DUAL)

    Voltage       V core       JP33       JP34        JP39        JP43

     3.3v          2.8v      3 & 4, 5     Open        Open        1 & 2
                               & 6

     3.3v          2.9v      3 & 4, 5     Open        2 & 4       1 & 2
                               & 6

     3.3v          3.1v      3 & 4, 5     Open        3 & 4       1 & 2
                               & 6

     3.4v          2.8v      3 & 4, 5     Open        Open        2 & 4
                               & 6

     3.4v          2.9v      3 & 4, 5     Open        2 & 4       2 & 4
                               & 6

     3.4v          3.1v      3 & 4, 5     Open        3 & 4       2 & 4
                               & 6

  Note: Pins designated should be in the closed position.

