
BIOSTAR MICROTECH INTERNATIONAL CORPORATION

MB-8500TUD-A (VER. 1.1)

Device Type      Mainboard
Processor        CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed  75/90/100/120/133/150/166/180/200/233/266MHz
Chip Set         Intel
Video Chip Set   None
Maximum Onboard  256MB (EDO & SDRAM supported)
Memory
Maximum Video    None
Memory
Cache            256/512KB
BIOS             Award
Dimensions       250mm x 220mm
I/O Options      32-bit PCI slots (5), 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
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power                ATX         CPU fan power            J14
  connector

  PS/2 mouse                J2         Speaker             J19/pins 1 - 4
  interface

  Serial port 2             J3         Power LED &         J19/pins 5 - 9
                                       keylock

  Parallel port             J6         Soft off power       J19/pins 10 &
                                       supply                    11

  Floppy drive              J7         Reset switch         J19/pins 12 &
  interface                                                      13

  Serial port 1             J8         Green PC connector   J19/pins 17 &
                                                                 18

  IDE interface 1           J9         IDE interface LED    J19/pins 20 &
                                                                 21

  IDE interface 2          J10         IR connector         J19/pins 22 -
                                                                 26

  PS/2 mouse port          J11         32-bit PCI slots      PC1  PC5

  USB connector            J12

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP6           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP6           Pins 2 & 3
                                                              closed

      On board battery disabled               JP6              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 2          Bank 3

      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        JP2           JP13

    150MHz         60MHz            2x          Closed          1 & 2

    166MHz         66MHz            2x           Open           1 & 2

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86L)

   CPU speed    Clock speed     Multiplier        JP2           JP13

    150MHz         60MHz            2x          Closed          1 & 2

    166MHz         66MHz            2x           Open           1 & 2

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86MX)

   CPU speed     Clock speed     Multiplier         JP2           JP13

    150MHz          60MHz            2x           Closed         1 & 2

    166MHz          66MHz            2x            Open          1 & 2

    166MHz          60MHz           2.5x          Closed       1 & 2, 3 &
                                                                   4

    200MHz          66MHz           2.5x           Open        1 & 2, 3 &
                                                                   4

    200MHz          60MHz            3x           Closed         3 & 4

    233MHz          66MHz            3x            Open          3 & 4

    266MHz          66MHz           3.5x           Open           Open

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

   CPU speed     Clock speed     Multiplier         JP2           JP13

     90MHz          60MHz           1.5x          Closed          Open

    100MHz          66MHz           1.5x           Open           Open

    120MHz          60MHz            2x           Closed         1 & 2

    133MHz          66MHz            2x            Open          1 & 2

    166MHz          66MHz           2.5x           Open        1 & 2, 3 &
                                                                   4

    200MHz          66MHz            3x            Open          3 & 4

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K6)

   CPU speed      Clock speed     Multiplier        JP2          JP13

     166MHz          66MHz           2.5x           Open       1 & 2, 3 &
                                                                   4

     200MHz          66MHz            3x            Open         3 & 4

     233MHz          66MHz           3.5x           Open         Open

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

   CPU speed     Clock speed     Multiplier         JP2           JP13

     90MHz          60MHz           1.5x          Closed          Open

    100MHz          66MHz           1.5x           Open           Open

    120MHz          60MHz            2x           Closed         1 & 2

    133MHz          66MHz            2x            Open          1 & 2

    150MHz          60MHz           2.5x          Closed       1 & 2, 3 &
                                                                   4

    166MHz          66MHz           2.5x           Open        1 & 2, 3 &
                                                                   4

    200MHz          66MHz            3x            Open          3 & 4

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

   CPU speed      Clock speed     Multiplier        JP2          JP13

     166MHz          66MHz           2.5x           Open       1 & 2, 3 &
                                                                   4

     200MHz          66MHz            3x            Open         3 & 4

     233MHz          66MHz           3.5x           Open         Open

  Note: Pins designated should be in the closed position.

  CPU VOLTAGE SELECTION (SINGLE)

     Voltage            JP16

      3.5v              Open

                 CPU VOLTAGE SELECTION (DUAL)

       Voltage              V core                JP16

        3.4v                 2.8v                 Open

        3.4v                 2.9v          Pins 1 & 2 closed

        3.4v                 3.2v          Pins 3 & 4 closed

