
SHUTTLE COMPUTER INTERNATIONAL, INC.

HOT-631

Device Type              Mainboard
Processor                Pentium II
Processor Speed          233/266/300/333MHz
Chip Set                 Intel
Video Chip Set           None
Maximum Onboard Memory   512MB (EDO & SDRAM supported)
Maximum Video Memory     None
Cache                    256/512KB (located on Pentium II CPU)
BIOS                     Award
Dimensions               305mm x 244mm
I/O Options              32-bit PCI slots (4), floppy drive interface, IDE
                         interfaces (2), parallel port, PS/2 mouse port,
                         serial ports (2), IR connector, USB connectors
                         (2), ATX power connector, AGP slot
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  AGP slot                   AGP       Reset switch               J32

  ATX power connector        ATX       USB connector 1            J33

  IDE interface 1            J13       USB connector 2            J34

  IDE interface 2            J14       AGP fan power              J43

  Parallel port              J19       IR connector               JP4

  Serial port 1              J20       Speaker                    JP24

  Serial port 2              J21       Chassis fan power          JP28

  Floppy drive interface     J22       Chassis fan power          JP29

  PS/2 mouse port            J24       32-bit PCI slots         PC1  PC4

  Power LED & keylock        J27       Soft off power supply       S1

  IDE interface LED          J30

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Factory configured - do not alter       J16           Pins 2 & 3
                                                              closed

     Factory configured - do not alter       J42              Open

     Factory configured - do not alter       JP2           Pins 2 & 3
                                                              closed

     CMOS memory normal operation            JP19          Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP19          Pins 2 & 3
                                                              closed

     Seagate hard drive not installed        JP32          Pins 1 & 2
                                                              closed

      Seagate hard drive installed            JP32          Pins 2 & 3
                                                              closed

                           DIMM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     8MB        (1) 1M x 64       None           None          None

     16MB       (1) 2M x 64       None           None          None

     16MB       (1) 1M x 64   (1) 1M x 64        None          None

     24MB       (1) 2M x 64   (1) 1M x 64        None          None

     24MB       (1) 1M x 64   (1) 1M x 64    (1) 1M x 64       None

     32MB       (1) 4M x 64       None           None          None

     32MB       (1) 2M x 64   (1) 2M x 64        None          None

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

     40MB       (1) 4M x 64   (1) 1M x 64        None          None

     48MB       (1) 4M x 64   (1) 2M x 64        None          None

     48MB       (1) 2M x 64   (1) 2M x 64    (1) 2M x 64       None

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

                        DIMM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     64MB        (1) 8M x 64       None           None           None

     64MB        (1) 4M x 64   (1) 4M x 64        None           None

     72MB        (1) 8M x 64   (1) 1M x 64        None           None

     80MB        (1) 8M x 64   (1) 2M x 64        None           None

     96MB        (1) 8M x 64   (1) 4M x 64        None           None

     96MB        (1) 4M x 64   (1) 4M x 64    (1) 4M x 64        None

     128MB       (1) 16M x 64      None           None           None

     128MB       (1) 8M x 64   (1) 8M x 64        None           None

     128MB       (1) 4M x 64   (1) 4M x 64    (1) 4M x 64    (1) 4M x 64

     136MB       (1) 16M x 64  (1) 1M x 64        None           None

     144MB       (1) 16M x 64  (1) 2M x 64        None           None

     152MB       (1) 16M x 64  (1) 1M x 64    (1) 1M x 64    (1) 1M x 64

     160MB       (1) 16M x 64  (1) 4M x 64        None           None

     176MB       (1) 16M x 64  (1) 2M x 64    (1) 2M x 64    (1) 2M x 64

     192MB       (1) 16M x 64  (1) 8M x 64        None           None

     192MB       (1) 8M x 64   (1) 8M x 64    (1) 8M x 64        None

     224MB       (1) 16M x 64  (1) 4M x 64    (1) 4M x 64    (1) 4M x 64

     256MB       (1) 16M x 64  (1) 16M x 64       None           None

     256MB       (1) 8M x 64   (1) 8M x 64    (1) 8M x 64    (1) 8M x 64

     272MB       (1) 16M x 64  (1) 16M x 64   (1) 1M x 64    (1) 1M x 64

     288MB       (1) 16M x 64  (1) 16M x 64   (1) 2M x 64    (1) 2M x 64

     320MB       (1) 16M x 64  (1) 16M x 64   (1) 4M x 64    (1) 4M x 64

     320MB       (1) 16M x 64  (1) 8M x 64    (1) 8M x 64    (1) 8M x 64

     384MB       (1) 16M x 64  (1) 16M x 64   (1) 16M x 64       None

     512MB       (1) 16M x 64  (1) 16M x 64   (1) 16M x 64   (1) 16M x 64

            Note: Board accepts EDO & SDRAM memory.

                     CACHE CONFIGURATION

  Note: 256KB/512KB cache is located on the Pentium II CPU.

                            CPU SPEED SELECTION

   CPU     Clock    Multiplier    JP5      JP6      JP7      JP8     JP35
  speed    speed

  233MHz   66MHz      3.5x       Closed   Open     Closed   Open     Open

  266MHz   66MHz       4x        Open     Closed   Closed   Closed   Open

  300MHz   66MHz      4.5x       Open     Closed   Closed   Open     Open

  333MHz   66MHz       5x        Open     Open     Closed   Closed   Open

