
BIOSTAR MICROTECH INTERNATIONAL CORPORATION

MB-8500TTD

Device Type        Mainboard
Processor          CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium
                   MMX
Processor Speed    90/100/120/133/150/166/200/233/266MHz
Chip Set           Intel
Video Chip Set     None
Maximum Onboard    256MB (EDO & SDRAM supported)
Memory
Maximum Video      None
Memory
Cache              256/512KB
BIOS               Award
Dimensions         220mm x 220mm
I/O Options        32-bit PCI slots (4), floppy drive interface, green PC
                   connector, IDE interfaces (2), parallel port, PS/2
                   mouse port, PS/2 mouse interface, serial ports (2), IR
                   connector, USB connector, ATX power connector
NPU Options        None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power                ATX         Speaker             J15/pins 1 - 4
  connector

  PS/2 mouse                J2         Power LED &         J15/pins 5 - 9
  interface                            keylock

  Parallel port             J6         Soft off power       J15/pins 10 &
                                       supply                    11

  Floppy drive              J7         Reset switch         J15/pins 12 &
  interface                                                      13

  IDE interface 1           J9         Green PC connector   J15/pins 17 &
                                                                 18

  PS/2 mouse port          J10         IDE interface LED    J15/pins 20 &
                                                                 21

  Serial port 1            J11         IR connector         J15/pins 22 -
                                                                 26

  Serial port 2            J12         IDE interface 2          J16

  USB connector            J13         32-bit PCI slots      PC1  PC4

  CPU fan power            J14

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP3           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP3           Pins 2 & 3
                                                              closed

      On board battery disabled               JP3              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

     128MB        (2) 16M x 36       None

          SIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1

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

     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.

               DIMM CONFIGURATION

      Size          Bank 0          Bank 1

      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) 16M x 64        None

     128MB        (1) 8M x 64     (1) 8M x 64

     136MB       (1) 16M x 64     (1) 1M x 64

     144MB       (1) 16M x 64     (1) 2M x 64

     160MB       (1) 16M x 64     (1) 4M x 64

     192MB       (1) 16M x 64     (1) 8M x 64

     256MB       (1) 16M x 64    (1) 16M x 64

            Note: Board accepts SDRAM memory.

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     256KB        (2) 32K x 32   Unidentified

     512KB        (2) 64K x 32   Unidentified

                       CPU SPEED SELECTION (CX 6X86)

   CPU speed      Clock speed     Multiplier        JP9          JP11

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

     150MHz          60MHz            2x           1 & 2       3 & 4, 5 &
                                                                   6

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

     200MHz          75MHz            2x           1 & 2         3 & 4

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86L)

   CPU speed      Clock speed     Multiplier        JP9          JP11

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

     150MHz          60MHz            2x           1 & 2       3 & 4, 5 &
                                                                   6

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

     200MHz          75MHz            2x           1 & 2         3 & 4

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86MX)

   CPU speed      Clock speed     Multiplier        JP9          JP11

     150MHz          60MHz            2x           1 & 2       3 & 4, 5 &
                                                                   6

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

     166MHz          60MHz           2.5x        1 & 2, 3 &    3 & 4, 5 &
                                                     4             6

     200MHz          75MHz            2x           1 & 2         3 & 4

     200MHz          66MHz           2.5x        1 & 2, 3 &    1 & 2, 5 &
                                                     4             6

     200MHz          60MHz            3x           3 & 4       3 & 4, 5 &
                                                                   6

     233MHz          75MHz           2.5x        1 & 2, 3 &      3 & 4
                                                     4

     233MHz          66MHz            3x           3 & 4       1 & 2, 5 &
                                                                   6

     266MHz          66MHz           3.5x           Open       1 & 2, 5 &
                                                                   6

     266MHz          75MHz            3x           3 & 4         3 & 4

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

   CPU speed      Clock speed     Multiplier        JP9          JP11

     90MHz           60MHz           1.5x           Open       3 & 4, 5 &
                                                                   6

     100MHz          66MHz           1.5x           Open       1 & 2, 5 &
                                                                   6

     120MHz          60MHz            2x           1 & 2       3 & 4, 5 &
                                                                   6

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

     166MHz          66MHz           2.5x        1 & 2, 3 &    1 & 2, 5 &
                                                     4             6

     200MHz          66MHz            3x           3 & 4       1 & 2, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K6)

   CPU speed      Clock speed     Multiplier        JP9          JP11

     166MHz          66MHz           2.5x        1 & 2, 3 &    1 & 2, 5 &
                                                     4             6

     200MHz          66MHz            3x           3 & 4       1 & 2, 5 &
                                                                   6

     233MHz          66MHz           3.5x           Open       1 & 2, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

   CPU speed      Clock speed     Multiplier        JP9          JP11

     90MHz           60MHz           1.5x           Open       3 & 4, 5 &
                                                                   6

     100MHz          66MHz           1.5x           Open       1 & 2, 5 &
                                                                   6

     120MHz          60MHz            2x           1 & 2       3 & 4, 5 &
                                                                   6

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

     150MHz          60MHz           2.5x        1 & 2, 3 &    3 & 4, 5 &
                                                     4             6

     166MHz          66MHz           2.5x        1 & 2, 3 &    1 & 2, 5 &
                                                     4             6

     200MHz          66MHz            3x           3 & 4       1 & 2, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

   CPU speed      Clock speed     Multiplier        JP9          JP11

     166MHz          66MHz           2.5x        1 & 2, 3 &    1 & 2, 5 &
                                                     4             6

     200MHz          66MHz            3x           3 & 4       1 & 2, 5 &
                                                                   6

     233MHz          66MHz           3.5x           Open       1 & 2, 5 &
                                                                   6

  Note: Pins designated should be in the closed position.

                      CPU VOLTAGE SELECTION (SINGLE)

         Voltage                   JP7                      JP8

          3.5v              Pins 5 & 6 closed      Pins 1 & 2, 3 & 4, 5 &
                                                          6 closed

                       CPU VOLTAGE SELECTION (DUAL)

      Voltage            V core              JP7                JP8

        3.4v              2.8v               Open              Open

        3.4v              2.9v            Pins 1 & 2           Open
                                            closed

        3.4v              3.2v            Pins 3 & 4           Open
                                            closed

