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       # BIOSTAR MICROTECH INTERNATIONAL CORPORATION
       
          M5ATC
       
          Device Type      Mainboard                                     
          Processor        CX 6X86/CX 6X86L/CX 686MX/AM K5/AM            
                           K6/IDT/Pentium/                               
                                                                         
                           Pentium MMX                                   
          Processor Speed  90/100/120/133/150/166/180/200/233/266MHz     
          Chip Set         ALI                                           
          Video Chip Set   None                                          
          Maximum Onboard  256MB (EDO & SDRAM supported)                 
          Memory           
          Maximum Video    None                                          
          Memory           
          Cache            256/512KB                                     
          BIOS             Award                                         
          Dimensions       225mm 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                                          
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose        |  Location  |
          |-------------------+----------+----------------+------------|
          | ATX power         |   ATX    | Speaker        | J14/pins 1 |
          | connector         |          |                |    - 4     |
          |-------------------+----------+----------------+------------|
          | PS/2 mouse        |    J2    | Power LED &    | J14/pins 5 |
          | interface         |          | keylock        |    - 9     |
          |-------------------+----------+----------------+------------|
          | Parallel port     |    J5    | Soft off power |  J14/pins  |
          |                   |          | supply         |  10 & 11   |
          |-------------------+----------+----------------+------------|
          | Floppy drive      |    J7    | Reset switch   |  J14/pins  |
          | interface         |          |                |  12 & 13   |
          |-------------------+----------+----------------+------------|
          | IDE interface 2   |    J8    | Green PC       |  J14/pins  |
          |                   |          | connector      |  17 & 18   |
          |-------------------+----------+----------------+------------|
          | IDE interface 1   |    J9    | IDE interface  |  J14/pins  |
          |                   |          | LED            |  20 & 21   |
          |-------------------+----------+----------------+------------|
          | PS/2 mouse port   |   J10    | IR connector   |  J14/pins  |
          |                   |          |                |  22 - 26   |
          |-------------------+----------+----------------+------------|
          | Serial port 1     |   J11    | CPU fan power  |    J15     |
          |-------------------+----------+----------------+------------|
          | Serial port 2     |   J12    | Wake on LAN    |    JP10    |
          |                   |          | connector      |            |
          |-------------------+----------+----------------+------------|
          | USB connector     |   J13    | 32-bit PCI     | PC1 – PC4  |
          |                   |          | slots          |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP2  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP3  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | CMOS memory normal operation    |  JP4  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | CMOS memory clear               |  JP4  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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 (CON’T)                 |
          |------------------------------------------------------------|
          |       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             |
          |----------------------------+-------------------------------|
          |           256KB            |         (2) 32K x 32          |
          |----------------------------+-------------------------------|
          |           512KB            |         (2) 64K x 32          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU SPEED SELECTION (CX 6X86)                |
          |------------------------------------------------------------|
          | CPU speed | Clock speed | Multiplier |  JP6  |     JP9     |
          |-----------+-------------+------------+-------+-------------|
          |  150MHz   |    60MHz    |     2x     | 1 & 2 |    1 & 2    |
          |-----------+-------------+------------+-------+-------------|
          |  166MHz   |    66MHz    |     2x     | 1 & 2 |    Open     |
          |-----------+-------------+------------+-------+-------------|
          |  200MHz   |    75MHz    |     2x     | 1 & 2 | 3 & 4, 5 &  |
          |           |             |            |       |      6      |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU SPEED SELECTION (CX 6X86L)               |
          |------------------------------------------------------------|
          | CPU speed | Clock speed | Multiplier |  JP6  |     JP9     |
          |-----------+-------------+------------+-------+-------------|
          |  150MHz   |    60MHz    |     2x     | 1 & 2 |    1 & 2    |
          |-----------+-------------+------------+-------+-------------|
          |  166MHz   |    66MHz    |     2x     | 1 & 2 |    Open     |
          |-----------+-------------+------------+-------+-------------|
          |  200MHz   |    75MHz    |     2x     | 1 & 2 | 3 & 4, 5 &  |
          |           |             |            |       |      6      |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              CPU SPEED SELECTION (CX 6X86MX)               |
          |------------------------------------------------------------|
          | CPU speed  |  Clock   | Multiplier |    JP6     |   JP9    |
          |            |  speed   |            |            |          |
          |------------+----------+------------+------------+----------|
          |   150MHz   |  60MHz   |     2x     |   1 & 2    |  1 & 2   |
          |------------+----------+------------+------------+----------|
          |   166MHz   |  66MHz   |     2x     |   1 & 2    |   Open   |
          |------------+----------+------------+------------+----------|
          |   166MHz   |  60MHz   |    2.5x    | 1 & 2, 3 & |  1 & 2   |
          |            |          |            |     4      |          |
          |------------+----------+------------+------------+----------|
          |   200MHz   |  75MHz   |     2x     |   1 & 2    | 3 & 4, 5 |
          |            |          |            |            |   & 6    |
          |------------+----------+------------+------------+----------|
          |   200MHz   |  66MHz   |    2.5x    | 1 & 2, 3 & |   Open   |
          |            |          |            |     4      |          |
          |------------+----------+------------+------------+----------|
          |   200MHz   |  60MHz   |     3x     |   3 & 4    |  1 & 2   |
          |------------+----------+------------+------------+----------|
          |   233MHz   |  83MHz   |     2x     |   1 & 2    | 1 & 2, 5 |
          |            |          |            |            |   & 6    |
          |------------+----------+------------+------------+----------|
          |   233MHz   |  75MHz   |    2.5x    | 1 & 2, 3 & | 3 & 4, 5 |
          |            |          |            |     4      |   & 6    |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CPU SPEED SELECTION (AM K5)                 |
          |------------------------------------------------------------|
          | CPU speed | Clock speed | Multiplier |     JP6     |  JP9  |
          |-----------+-------------+------------+-------------+-------|
          |   90MHz   |    60MHz    |    1.5x    |    Open     | 1 & 2 |
          |-----------+-------------+------------+-------------+-------|
          |  100MHz   |    66MHz    |    1.5x    |    Open     | Open  |
          |-----------+-------------+------------+-------------+-------|
          |  120MHz   |    60MHz    |     2x     |    1 & 2    | 1 & 2 |
          |-----------+-------------+------------+-------------+-------|
          |  133MHz   |    66MHz    |     2x     |    1 & 2    | Open  |
          |-----------+-------------+------------+-------------+-------|
          |  166MHz   |    66MHz    |    2.5x    | 1 & 2, 3 &  | Open  |
          |           |             |            |      4      |       |
          |-----------+-------------+------------+-------------+-------|
          |  200MHz   |    66MHz    |     3x     |    3 & 4    | Open  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CPU SPEED SELECTION (AM K6)                 |
          |------------------------------------------------------------|
          | CPU speed | Clock speed | Multiplier |     JP6      | JP9  |
          |-----------+-------------+------------+--------------+------|
          |  166MHz   |    66MHz    |    2.5x    | 1 & 2, 3 & 4 | Open |
          |-----------+-------------+------------+--------------+------|
          |  200MHz   |    66MHz    |     3x     |    3 & 4     | Open |
          |-----------+-------------+------------+--------------+------|
          |  233MHz   |    66MHz    |    3.5x    |    1 & 2     | Open |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU SPEED SELECTION (IDT)                  |
          |------------------------------------------------------------|
          | CPU speed  | Clock speed  | Multiplier  |   JP6   |  JP9   |
          |------------+--------------+-------------+---------+--------|
          |   180MHz   |    66MHz     |     3x      |  3 & 4  | 1 & 2  |
          |------------+--------------+-------------+---------+--------|
          |   200MHz   |    66MHz     |     3x      |  3 & 4  |  Open  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CPU SPEED SELECTION (INTEL)                 |
          |------------------------------------------------------------|
          | CPU speed | Clock speed | Multiplier |     JP6     |  JP9  |
          |-----------+-------------+------------+-------------+-------|
          |   90MHz   |    60MHz    |    1.5x    |    Open     | 1 & 2 |
          |-----------+-------------+------------+-------------+-------|
          |  100MHz   |    66MHz    |    1.5x    |    Open     | Open  |
          |-----------+-------------+------------+-------------+-------|
          |  120MHz   |    60MHz    |     2x     |    1 & 2    | 1 & 2 |
          |-----------+-------------+------------+-------------+-------|
          |  133MHz   |    66MHz    |     2x     |    1 & 2    | Open  |
          |-----------+-------------+------------+-------------+-------|
          |  150MHz   |    60MHz    |    2.5x    | 1 & 2, 3 &  | 1 & 2 |
          |           |             |            |      4      |       |
          |-----------+-------------+------------+-------------+-------|
          |  166MHz   |    66MHz    |    2.5x    | 1 & 2, 3 &  | Open  |
          |           |             |            |      4      |       |
          |-----------+-------------+------------+-------------+-------|
          |  200MHz   |    66MHz    |     3x     |    3 & 4    | Open  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              CPU SPEED SELECTION (INTEL MMX)               |
          |------------------------------------------------------------|
          | CPU speed | Clock speed | Multiplier |     JP6      | JP9  |
          |-----------+-------------+------------+--------------+------|
          |  166MHz   |    66MHz    |    2.5x    | 1 & 2, 3 & 4 | Open |
          |-----------+-------------+------------+--------------+------|
          |  200MHz   |    66MHz    |     3x     |    3 & 4     | Open |
          |-----------+-------------+------------+--------------+------|
          |  233MHz   |    66MHz    |    3.5x    |     Open     | Open |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU VOLTAGE SELECTION (SINGLE)               |
          |------------------------------------------------------------|
          |      Voltage      |                  JP7                   |
          |-------------------+----------------------------------------|
          |       3.3v        |    Pins 1 & 2, 5 & 6, 7 & 8 closed     |
          |-------------------+----------------------------------------|
          |       3.5v        | Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CPU VOLTAGE SELECTION (DUAL)                |
          |------------------------------------------------------------|
          |     Voltage     |    V core     |           JP7            |
          |-----------------+---------------+--------------------------|
          |      3.3v       |     2.1v      |    Pins 1 & 2 closed     |
          |-----------------+---------------+--------------------------|
          |      3.3v       |     2.2v      |    Pins 3 & 4 closed     |
          |-----------------+---------------+--------------------------|
          |      3.3v       |     2.8v      |    Pins 7 & 8 closed     |
          |-----------------+---------------+--------------------------|
          |      3.3v       |     2.9v      | Pins 1 & 2, 7 & 8 closed |
          |-----------------+---------------+--------------------------|
          |      3.3v       |     3.2v      | Pins 5 & 6, 7 & 8 closed |
          +------------------------------------------------------------+