
SOYO COMPUTER CO., LTD.

5V A0/A2/A5

Processor           CX M1/AM K5/Pentium
Processor Speed     75/90/100/120/133/150/166/180/200MHz
Chip Set            Intel
Video Chip Set      None
Maximum Onboard     128MB (EDO supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB
BIOS                Award
Dimensions          330mm x 218mm
I/O Options         32-bit PCI slots (4), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, PS/2
                    mouse port, serial ports (2), cache slot
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       Power LED & keylock        J17

  Serial port 1              CN2       Speaker                    J18

  Floppy drive interface     CN3       Reset switch               J19

  Parallel port              CN4       Green PC connector         J23

  IDE interface 2            CN5       IDE interface LED          J24

  IDE interface 1            CN6       32-bit PCI slots         PC1 - PC4

  PS/2 mouse port            CN7       Cache slot                 SL1

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           JP1          Unidentified
      alter

     CMOS memory normal operation          JP5              Open

      CMOS memory clear                     JP5             Closed

     Factory configured - do not          JP22          Unidentified
      alter

     Factory configured - do not          JP35          Unidentified
      alter

     PS/2 mouse disabled                  JPS2              Open

      PS/2 mouse enabled                   JPS2             Closed

                      DRAM/DIMM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       4MB        (2) 512K x 36         None            None

       8MB         (2) 1M x 36          None            None

       8MB        (2) 512K x 36    (2) 512K x 36        None

      12MB         (2) 1M x 36     (2) 512K x 36        None

      12MB             None        (2) 512K x 36     (1) 1M x 64

      16MB         (2) 2M x 36          None            None

      16MB         (2) 1M x 36      (2) 1M x 36         None

      16MB             None         (2) 1M x 36      (1) 1M x 64

      20MB         (2) 2M x 36     (2) 512K x 36        None

      20MB             None        (2) 512K x 36     (1) 2M x 64

      24MB             None         (2) 1M x 36      (1) 2M x 64

      24MB             None         (2) 2M x 36      (1) 1M x 64

      24MB         (2) 1M x 36      (2) 2M x 36         None

      32MB             None         (2) 2M x 36      (1) 2M x 64

      32MB         (2) 4M x 36          None            None

      32MB         (2) 2M x 36      (2) 2M x 36         None

      36MB             None        (2) 512K x 36     (1) 4M x 64

      36MB         (2) 4M x 36     (2) 512K x 36        None

      40MB             None         (2) 1M x 36      (1) 4M x 64

      40MB             None         (2) 4M x 36      (1) 1M x 64

      40MB         (2) 1M x 36      (2) 4M x 36         None

      48MB             None         (2) 4M x 36      (1) 2M x 64

                      DRAM/DIMM CONFIGURATION (CONT)

       Size              Bank 0            Bank 1             Bank 2

       48MB               None          (2) 2M x 36        (1) 4M x 64

       48MB           (2) 4M x 36       (2) 2M x 36            None

       64MB               None          (2) 4M x 36        (1) 4M x 64

       64MB           (2) 8M x 36           None               None

       64MB           (2) 4M x 36       (2) 4M x 36            None

       68MB               None         (2) 512K x 36       (1) 8M x 64

       68MB           (2) 8M x 36      (2) 512K x 36           None

       72MB               None          (2) 1M x 36        (1) 8M x 64

       72MB               None          (2) 8M x 36        (1) 1M x 64

       72MB           (2) 1M x 36       (2) 8M x 36            None

       80MB               None          (2) 8M x 36        (1) 2M x 64

       80MB               None          (2) 2M x 36        (1) 8M x 64

       80MB           (2) 8M x 36       (2) 2M x 36            None

       96MB               None          (2) 8M x 36        (1) 4M x 64

       96MB               None          (2) 4M x 36        (1) 8M x 64

       96MB           (2) 4M x 36       (2) 8M x 36            None

       128MB              None          (2) 8M x 36        (1) 8M x 64

       128MB          (2) 8M x 36       (2) 8M x 36            None

  Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Banks
  are interchangeable.

                        DIMM VOLTAGE CONFIGURATION

         Voltage                    JP37                    JP38

            3.3v            Pins 2 & 3 closed        Pins 2 & 3 closed

              5v             Pins 1 & 2 closed        Pins 1 & 2 closed

                            CACHE CONFIGURATION

       Size            Bank 0               SL1                 TAG

      256KB             None            256KB module        (1) 16K x 8
                                         installed

      256KB         (2) 32K x 32      None installed        (1) 16K x 8

      512KB         (2) 32K x 32        256KB module        (1) 16K x 8
                                         installed

              CACHE JUMPER CONFIGURATION

           Size                        JP20

           256KB                       Open

           512KB                      Closed

  Note: JP20 may be labeled as JP7 on some versions.

                        CPU SPEED SELECTION (CYRIX)

    CPU      Clock    Multiplier      JP10      JP11      JP13      JP14
  speed      speed

  120MHz     50MHz        2x         Closed    Closed    Closed     Open

  133MHz     55MHz        2x          Open      Open     Closed     Open

  150MHz     60MHz        2x          Open     Closed    Closed     Open

  166MHz     66MHz        2x         Closed     Open     Closed     Open

                         CPU SPEED SELECTION (AMD)

    CPU      Clock    Multiplier      JP10      JP11      JP13      JP14
  speed      speed

  75MHz      50MHz       1.5x        Closed    Closed     Open      Open

  90MHz      55MHz       1.5x         Open      Open      Open      Open

  100MHz     55MHz       1.5x         Open      Open      Open      Open

  90MHz      60MHz       1.5x         Open     Closed     Open      Open

  100MHz     66MHz       1.5x        Closed     Open      Open      Open

  120MHz     60MHz       1.5x         Open     Closed     Open      Open

  133MHz     66MHz       1.5x        Closed     Open      Open      Open

  150MHz     60MHz        2x          Open     Closed    Closed     Open

  166MHz     66MHz        2x         Closed     Open     Closed     Open

                        CPU SPEED SELECTION (INTEL)

    CPU      Clock    Multiplier     JP10      JP11      JP13      JP14
  speed     speed

  75MHz     50MHz        1.5x       Closed    Closed     Open      Open

  90MHz     60MHz        1.5x        Open     Closed     Open      Open

  100MHz    50MHz         2x        Closed    Closed    Closed     Open

  100MHz    66MHz        1.5x       Closed     Open      Open      Open

  120MHz    60MHz         2x         Open     Closed    Closed     Open

  133MHz    66MHz         2x        Closed     Open     Closed     Open

  150MHz    60MHz        2.5x        Open     Closed    Closed    Closed

  166MHz    66MHz        2.5x       Closed     Open     Closed    Closed

  180MHz    60MHz         3x         Open     Closed     Open     Closed

  200MHz    66MHz         3x        Closed     Open      Open     Closed

                           CPU VOLTAGE SELECTION

            Voltage                    JP30                  JP31

      3.3v (Standard or VR)          Closed                 Open

        3.45v - 3.6v (VRE)             Open                 Closed

