
SOYO COMPUTER CO., LTD.

5XB5

Processor         CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium
Processor Speed   75/90/100/120/133/150/166/180/200/233MHz
Chip Set          Unidentified
Video Chip Set    None
Maximum Onboard   256MB (EDO supported)
Memory
Maximum Video     None
Memory
Cache             512KB
BIOS              Unidentified
Dimensions        254mm 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), IR connector, USB connector, ATX
                  connector
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Speaker                    J18

  Floppy drive interface     CN1       Reset switch               J19

  Parallel port              CN2       Turbo LED                  J22

  Serial port 2              CN3       IDE interface LED          J24

  Serial port 1              CN4       CPU cooling fan            JP43

  IDE interface 2            CN5       Wake on LAN connector      JP44

  IDE interface 1            CN6       32-bit PCI slots         PC1  PC4

  PS/2 mouse port            CN7       Soft off power supply      PW2

  IR connector               IR1       USB connector              USB

  Power LED & keylock        J17

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Power supply select AT                  JP1             Closed

      Power supply select ATX                 JP1              Open

     CMOS memory normal operation            JP5           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP5           Pins 2 & 3
                                                              closed

     Flash BIOS select SST, MXIC,            JP38          Pins 2 & 3
      WINBON, ATMEL                                           closed

      Flash BIOS Intel                        JP38          Pins 1 & 2
                                                              closed

      CE test disabled                        JP40            Closed

      CE test enabled                         JP40             Open

                         DIMM/SIMM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

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

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

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

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

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

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

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

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

     32MB       (2) 4M x 36       None           None          None

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

     32MB       (2) 1M x 36   (1) 1M x 64    (1) 1M x 64    (1) 1M x 64

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

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

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

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

                      DIMM/SIMM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

     128MB       (2) 16M x 36      None           None           None

     256MB       (2) 8M x 36   (1) 8M x 64    (1) 8M x 64        None

            Note: Board accepts EDO memory.

                  DIMM VOLTAGE CONFIGURATION

       Voltage              JP37A                JP37B

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

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

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     512KB        (2) 64K x 32   (1) 32K x 8

                     CPU SPEED SELECTION (CX 6X86/6X 86L)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  150MHz   60MHz       2x        On      Off     On     Off     Off     Off

  166MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  200MHz   75MHz       2x        On      Off     Off     On     Off     Off

                       CPU SPEED SELECTION (CX 6X86MX)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  166MHz   60MHz      2.5x       On      On      On     Off     Off     Off

  166MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  200MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  200MHz   75MHz       2x        On      Off     Off     On     Off     Off

  233MHz   66MHz       3x        Off     On      Off    Off     Off     Off

  233MHz   75MHz      2.5x       On      On      Off     On     Off     Off

                         CPU SPEED SELECTION (AM K5)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  75MHz    50MHz      1.5x       Off     Off     On      On      On     Off

  90MHz    60MHz      1.5x       Off     Off     On     Off     Off     Off

  100MHz   66MHz      1.5x       Off     Off     Off    Off     Off     Off

  120MHz   60MHz      1.5x       Off     Off     On     Off     Off     Off

  133MHz   66MHz      1.5x       Off     Off     Off    Off     Off     Off

  150MHz   60MHz      2.5x       On      On      On     Off     Off     Off

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

                         CPU SPEED SELECTION (AM K6)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  200MHz   66MHz       3x        Off     On      Off    Off     Off     Off

  233MHz   66MHz      3.5x       Off     Off     Off    Off     Off     Off

                         CPU SPEED SELECTION (INTEL)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  75MHz    50MHz      1.5x       Off     Off     On      On      On     Off

  90MHz    60MHz      1.5x       Off     Off     On     Off     Off     Off

  100MHz   66MHz      1.5x       Off     Off     Off    Off     Off     Off

  120MHz   60MHz       2x        On      Off     On     Off     Off     Off

  133MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  150MHz   60MHz      2.5x       On      On      On     Off     Off     Off

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  180MHz   60MHz       3x        Off     On      On     Off     Off     Off

  200MHz   66MHz       3x        Off     On      Off    Off     Off     Off

  233MHz   66MHz      3.5x       Off     Off     Off    Off     Off     Off

                      CPU VOLTAGE SELECTION (SINGLE)

                Voltage                               JP30

                   3.3v                     Pins 1 & 2, 9 & 10 closed

                  3.52v                   Pins 1 & 2, 11 & 12 closed

                       CPU VOLTAGE SELECTION (DUAL)

               Voltage                                JP30

                   2.1v                         Pins 5 & 6 closed

                  2.8v                    Pins 1 & 2, 11 & 12 closed

                   2.9v                     Pins 1 & 2, 5 & 6 closed

                   3.2v                     Pins 1 & 2, 7 & 8 closed

                       MISCELLANEOUS TECHNICAL NOTE

            If board has problems detecting voltage on older version non
            Intel CPUs, remove the jumper from JP9.

