
SHUTTLE COMPUTER INTERNATIONAL, INC.

HOT-553

Processor        CX M1/AM K5/Pentium
Processor Speed  66/75/90/100/120/125/133/150/166/180/200/MHz
Chip Set         Intel
Video Chip Set   None
Maximum Onboard  256MB (EDO supported)
Memory
Maximum Video    None
Memory
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, VRM
                 connector, USB connectors (2)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  IDE interface 1            IDE1      IR connector               JP63

  IDE interface 2            IDE2      Green PC LED               JP74

  Floppy drive interface      J1       USB connector              JP80

  Speaker                    JP7       USB connector              JP81

  Power LED & keylock        JP8       Parallel port               P1

  Reset switch               JP12      32-bit PCI slots         PC1 - PC4

  Turbo switch               JP13      Serial port 1               S1

  Turbo LED                  JP14      Serial port 2               S2

  Green PC connector         JP19      Cache slot                 SL1

  IDE interface LED          JP20      VRM connector              VRM

  PS/2 mouse interface       JP52

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

      Flash BIOS voltage select 12v         JP9        Pins 2 & 3 closed

      Flash BIOS voltage select 5v          JP9        Pins 1 & 2 closed

     CMOS memory normal operation         JP11              Open

      CMOS memory clear                    JP11             Closed

     Factory configured - do not          JP59        Pins 2 & 3 closed
      alter

      Monitor type select                  JP71          Unidentified

     Password normal operation            JP72              Open

      Password clear                       JP72             Closed

              DRAM 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) 2M x 36    (2) 2M x 36

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

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

      64MB        (2) 8M x 36        None

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

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

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

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

     128MB        (2) 16M x 36       None

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

     136MB        (2) 16M x 36   (2) 1M x 36

                  DRAM CONFIGURATION (CONT)

        Size                Bank 0               Bank 1

        144MB            (2) 16M x 36         (2) 2M x 36

        160MB            (2) 16M x 36         (2) 4M x 36

        192MB            (2) 16M x 36         (2) 8M x 36

        256MB            (2) 16M x 36         (2) 16M x 36

  Note: Board accepts EDO memory. Banks are interchangeable.

                            CACHE CONFIGURATION

       Size            Bank 0               SL1                 TAG

      256KB         (2) 32K x 32      None installed        (1) 32K x 8

      512KB         (2) 32K x 32        256KB module        (1) 32K x 8
                                         installed

                  CACHE JUMPER CONFIGURATION

        Size                 JP4                  JP64

        256KB          Pins 1 & 2 closed   Pins 2 & 3 closed

        512KB          Pins 2 & 3 closed   Pins 1 & 2 closed

         CACHE TYPE CONFIGURATION

        Type                 JP78

    Mixed voltage     Pins 2 & 3 closed

        3.3v          Pins 1 & 2 closed

                        CPU SPEED SELECTION (CYRIX)

   CPU      Clock   Multiplier    JP3    JP15      JP16    JP58    JP79
  speed    speed

  90MHz    40MHz        2x        Open   Open     Closed   Open   Closed

  120MHz   50MHz        2x        Open   Open      Open    Open    Open

  150MHz   60MHz        2x        Open   Closed   Closed   Open    Open

  166MHz   66MHz        2x        Open   Closed    Open    Open    Open

                         CPU SPEED SELECTION (AMD)

   CPU      Clock    Multiplier    JP3      JP15     JP16     JP58   JP79
  speed    speed

  60MHz    66MHz        1x        Closed   Closed    Open     Open   Open

  75MHz    50MHz       1.5x       Open      Open     Open     Open   Open

  90MHz    60MHz       1.5x       Open     Closed   Closed    Open   Open

  100MHz   66MHz       1.5x       Open     Closed    Open     Open   Open

                        CPU SPEED SELECTION (INTEL)

   CPU     Clock    Multiplier    JP3     JP15     JP16     JP58     JP79
  speed    speed

  75MHz    50MHz      1.5x       Open     Open     Open     Open     Open

  90MHz    60MHz      1.5x       Open     Closed   Closed   Open     Open

  100MHz   66MHz      1.5x       Open     Closed   Open     Open     Open

  120MHz   60MHz       2x        Closed   Closed   Closed   Open     Open

  125MHz   60MHz      2.5x       Closed   Open     Open     Closed   Open

  133MHz   66MHz       2x        Closed   Closed   Open     Open     Open

  150MHz   60MHz      2.5x       Closed   Closed   Closed   Closed   Open

  150MHz   50MHz       3x        Open     Open     Open     Closed   Open

  166MHz   66MHz      2.5x       Closed   Closed   Open     Closed   Open

  180MHz   60MHz       3x        Open     Closed   Closed   Closed   Open

  200MHz   66MHz       3x        Open     Closed   Open     Closed   Open

           CPU VOLTAGE SELECTION

  Voltage      J5         J6        J7

   3.3v      Closed      Open      Open

   3.45v      Open      Closed     Open

   3.6v       Open       Open     Closed

                        VL BUS WAIT STATE SELECTION

    Voltage    Power Supply     JP50       JP51       JP56        JP57
    Output         Path

   On board     3.3v - 3.6v    1 & 2,      Open      Closed      Closed
     VRM       onboard VRM     3 & 4

  Add on VRM    3.3v & 2.5v     Open     1 & 2, 3     Open        Open
   for P55C     add on VRM                 & 4

  Add on VRM   3.3v onboard     Open       Open      Closed      Closed
   for P55C      VRM. 2.5v
                add on VRM

  Note: Pins designated should be in the closed position.

                           DMA CHANNEL SELECTION

         Channel                   JP60                     JP61

             1             Pins 1 & 2 closed        Pins 1 & 2 closed

              3             Pins 2 & 3 closed        Pins 2 & 3 closed

                              MOUSE SELECTION

                Type                                 JP52

             6 pin mouse                       Pins 1 - 6 closed

            10 pin mouse               Pins 2 & 8, 3 & 9, 4 & 10, 5 & 11,
                                                 6 & 12 closed

            Note: Pins 1 is not shown on the mainboard. Pin labeling may
            be shown different on board than shown in this table.

