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       # GIGA-BYTE TECHNOLOGY CO., LTD.
       
          GA-686LX
       
          Device Type      Mainboard                                     
          Processor        Pentium II                                    
          Processor Speed  200/233/266/300/333/366MHz                    
          Chip Set         Intel                                         
          Video Chip Set   None                                          
          Maximum Onboard  1GB (EDO & SDRAM supported)                   
          Memory           
          Maximum Video    None                                          
          Memory           
          Cache            256/512KB (located on Pentium II CPU)         
          BIOS             Award                                         
          Dimensions       305mm x 244mm                                 
          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 connectors (2), ATX    
                           power connector, AGP slot                     
          NPU Options      None                                          
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | AGP slot          |   AGP    | CPU fan power    |    J2    |
          |-------------------+----------+------------------+----------|
          | ATX power         |   ATX    | Speaker          |    J3    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN1    | Reset switch     |    J4    |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   CN2    | Power LED        |    J5    |
          |-------------------+----------+------------------+----------|
          | Parallel port     |   CN3    | IDE interface    |    J6    |
          |                   |          | LED              |          |
          |-------------------+----------+------------------+----------|
          | USB connector 1   |   CN4    | IR connector     |    J7    |
          |-------------------+----------+------------------+----------|
          | USB connector 2   |   CN4A   | Green PC         |    J8    |
          |                   |          | connector        |          |
          |-------------------+----------+------------------+----------|
          | PS/2 mouse port   |   CN5    | Soft off power   |    J9    |
          |                   |          | supply           |          |
          |-------------------+----------+------------------+----------|
          | IDE interface 2   |   CN6    | Green PC LED     |   J10    |
          |-------------------+----------+------------------+----------|
          | IDE interface 1   |   CN7    | 32-bit PCI slots |  PC1 –   |
          |                   |          |                  |   PC4    |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |   CN8    |                  |          |
          | interface         |          |                  |          |
          |------------------------------------------------------------|
          | Note: The location of J10 is unidentified.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP2  | Unidentified |
          |   | alter                           |       |              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DIMM CONFIGURATION 1GB                   |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 1M x 64 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 2M x 64 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 1M x 64 | (1) 1M x 64 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 24MB | (1) 2M x 64 | (1) 1M x 64 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 24MB | (1) 1M x 64 | (1) 1M x 64 |  (1) 1M x  |    None    |
          |      |             |             |     64     |            |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 4M x 64 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 2M x 64 | (1) 2M x 64 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 1M x 64 | (1) 1M x 64 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     64     |     64     |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 4M x 64 | (1) 1M x 64 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 48MB | (1) 4M x 64 | (1) 2M x 64 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 48MB | (1) 2M x 64 | (1) 2M x 64 |  (1) 2M x  |    None    |
          |      |             |             |     64     |            |
          |------+-------------+-------------+------------+------------|
          | 64MB | (1) 2M x 64 | (1) 2M x 64 |  (1) 2M x  |  (1) 2M x  |
          |      |             |             |     64     |     64     |
          |------+-------------+-------------+------------+------------|
          | 64MB | (1) 8M x 64 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 64MB | (1) 4M x 64 | (1) 4M x 64 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 72MB | (1) 8M x 64 | (1) 1M x 64 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 80MB | (1) 8M x 64 | (1) 2M x 64 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 96MB | (1) 4M x 64 | (1) 4M x 64 |  (1) 4M x  |    None    |
          |      |             |             |     64     |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DIMM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |  Size  |   Bank 0   |   Bank 1   |   Bank 2   |   Bank 3   |
          |--------+------------+------------+------------+------------|
          |  96MB  |  (1) 8M x  |  (1) 4M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 128MB  | (1) 16M x  |    None    |    None    |    None    |
          |        |     64     |            |            |            |
          |--------+------------+------------+------------+------------|
          | 128MB  |  (1) 8M x  |  (1) 8M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 128MB  |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 136MB  | (1) 16M x  |  (1) 1M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 144MB  | (1) 16M x  |  (1) 2M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 152MB  | (1) 16M x  |  (1) 1M x  |  (1) 1M x  |  (1) 1M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 160MB  | (1) 16M x  |  (1) 4M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 176MB  | (1) 16M x  |  (1) 2M x  |  (1) 2M x  |  (1) 2M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 192MB  | (1) 16M x  |  (1) 8M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 192MB  |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |    None    |
          |        |     64     |     64     |     64     |            |
          |--------+------------+------------+------------+------------|
          | 224MB  | (1) 16M x  |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 256MB  | (1) 32M x  |    None    |    None    |    None    |
          |        |     64     |            |            |            |
          |--------+------------+------------+------------+------------|
          | 256MB  | (1) 16M x  | (1) 16M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 256MB  |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 272MB  | (1) 16M x  | (1) 16M x  |  (1) 1M x  |  (1) 1M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 280MB  | (1) 32M x  |  (1) 1M x  |  (1) 1M x  |  (1) 1M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 288MB  | (1) 16M x  | (1) 16M x  |  (1) 2M x  |  (1) 2M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 304MB  | (1) 32M x  |  (1) 2M x  |  (1) 2M x  |  (1) 2M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 320MB  | (1) 16M x  | (1) 16M x  |  (1) 4M x  |  (1) 4M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 320MB  | (1) 16M x  |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 352MB  | (1) 32M x  |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 384MB  | (1) 16M x  | (1) 16M x  | (1) 16M x  |    None    |
          |        |     64     |     64     |     64     |            |
          |--------+------------+------------+------------+------------|
          | 384MB  | (1) 32M x  | (1) 16M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 448MB  | (1) 32M x  |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 512MB  | (1) 32M x  | (1) 32M x  |    None    |    None    |
          |        |     64     |     64     |            |            |
          |--------+------------+------------+------------+------------|
          | 512MB  | (1) 16M x  | (1) 16M x  | (1) 16M x  | (1) 16M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 640MB  | (1) 32M x  | (1) 16M x  | (1) 16M x  | (1) 16M x  |
          |        |     64     |     64     |     64     |     64     |
          |--------+------------+------------+------------+------------|
          | 768MB  | (1) 32M x  | (1) 32M x  | (1) 32M x  |    None    |
          |        |     64     |     64     |     64     |            |
          |--------+------------+------------+------------+------------|
          | 1024MB | (1) 32M x  | (1) 32M x  | (1) 32M x  | (1) 32M x  |
          |        |     64     |     64     |     64     |     64     |
          |------------------------------------------------------------|
          |      Note: Maximum EDO memory is 1GB. Maximum SDRAM is     |
          |      512MB.                                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Note: 256KB/512KB cache is located on the Pentium II CPU.  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |   CPU   |  Clock  | Multiplier | S1/1 | S1/2 | S1/3 | S1/4 |
          |  speed  |  speed  |            |      |      |      |      |
          |---------+---------+------------+------+------+------+------|
          | 200MHz  |  66MHz  |     3x     | Off  |  On  | Off  | Off  |
          |---------+---------+------------+------+------+------+------|
          | 233MHz  |  66MHz  |    3.5x    |  On  |  On  | Off  | Off  |
          |---------+---------+------------+------+------+------+------|
          | 266MHz  |  66MHz  |     4x     | Off  | Off  |  On  | Off  |
          |---------+---------+------------+------+------+------+------|
          | 300MHz  |  66MHz  |    4.5x    |  On  | Off  |  On  | Off  |
          |---------+---------+------------+------+------+------+------|
          | 333MHz  |  66MHz  |     5x     | Off  |  On  |  On  | Off  |
          |---------+---------+------------+------+------+------+------|
          | 366MHz  |  66MHz  |    5.5x    |  On  |  On  |  On  | Off  |
          +------------------------------------------------------------+