GIGA-BYTE TECHNOLOGY CO., LTD.
==============================

   GA-686KX

   Device Type      Mainboard                                     
   Processor        Pentium II                                    
   Processor Speed  200/233/266/300/333/366MHz                    
   Chip Set         Intel                                         
   Video Chip Set   None                                          
   Maximum Onboard  768MB (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 (5), 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                               
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/E-H/34828-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | ATX power         |   ATX    | CPU fan power    |    J1    |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   CN1    | Speaker          |    J3    |
   |-------------------+----------+------------------+----------|
   | Parallel port     |   CN2    | Reset switch     |    J4    |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |   CN3    | Power LED        |    J5    |
   |-------------------+----------+------------------+----------|
   | PS/2 mouse port   |   CN4    | IDE interface    |    J6    |
   |                   |          | LED              |          |
   |-------------------+----------+------------------+----------|
   | USB connector 1   |   CN5    | IR connector     |    J7    |
   |-------------------+----------+------------------+----------|
   | USB connector 2   |   CN5A   | Soft off power   |    J9    |
   |                   |          | supply           |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 2   |   CN6    | Green PC LED     |   J10    |
   |-------------------+----------+------------------+----------|
   | IDE interface 1   |   CN7    | 32-bit PCI slots |  PC1 -   |
   |                   |          |                  |   PC5    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   CN8    |                  |          |
   | interface         |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  J8   | Unidentified |
   |   | alter                           |       |              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     SIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
   |------------+---------------+---------------+---------------|
   |    8MB     |  (2) 1M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |    16MB    |  (2) 1M x 36  |  (2) 1M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |    16MB    |  (2) 2M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |    24MB    |  (2) 1M x 36  |  (2) 1M x 36  |  (2) 1M x 36  |
   |------------+---------------+---------------+---------------|
   |    32MB    |  (2) 2M x 36  |  (2) 2M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |    32MB    |  (2) 4M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |    48MB    |  (2) 2M x 36  |  (2) 2M x 36  |  (2) 2M x 36  |
   |------------+---------------+---------------+---------------|
   |    64MB    |  (2) 4M x 36  |  (2) 4M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |    64MB    |  (2) 8M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |    96MB    |  (2) 4M x 36  |  (2) 4M x 36  |  (2) 4M x 36  |
   |------------+---------------+---------------+---------------|
   |   128MB    |  (2) 8M x 36  |  (2) 8M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |   128MB    | (2) 16M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |   192MB    |  (2) 8M x 36  |  (2) 8M x 36  |  (2) 8M x 36  |
   |------------+---------------+---------------+---------------|
   |   256MB    | (2) 16M x 36  | (2) 16M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |   256MB    | (2) 32M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |   384MB    | (2) 16M x 36  | (2) 16M x 36  | (2) 16M x 36  |
   |------------+---------------+---------------+---------------|
   |   512MB    | (2) 32M x 36  | (2) 32M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |   768MB    | (2) 32M x 36  | (2) 32M x 36  | (2) 32M x 36  |
   |------------------------------------------------------------|
   |      Note: Board accepts EDO memory.                       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    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  |
   +------------------------------------------------------------+