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       # GIGA-BYTE TECHNOLOGY CO., LTD.
       
          GA-686FX
       
          Processor        Pentium Pro                                   
          Processor Speed  150/166/180/200MHz                            
          Chip Set         Unidentified                                  
          Video Chip Set   None                                          
          Maximum Onboard  512MB                                         
          Memory           
          Maximum Video    None                                          
          Memory           
          Cache            256/512KB (located on Pentium Pro CPU)        
          BIOS             Award                                         
          Dimensions       330mm x 218mm                                 
          I/O Options      32-bit PCI slots (4), floppy drive interface, 
                           green PC connector, IDE interfaces (2),       
                           parallel port, PS/2 mouse interface, serial   
                           ports (2), IR connector, USB connectors (2),  
                           ATX power connector                           
          NPU Options      None                                          
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | ATX power         |   ATX    | Speaker          |    J5    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Parallel port     |   CN1    | PS/2 mouse       |   JP2    |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   CN2    | Chassis fan      |   JP3    |
          |                   |          | power            |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN3    | USB connector    |   JP6    |
          |-------------------+----------+------------------+----------|
          | IDE interface 1   |   CN4    | USB connector    |   JP7    |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |   CN5    | Soft off power   |   JP10   |
          | interface         |          | supply           |          |
          |-------------------+----------+------------------+----------|
          | IDE interface 2   |   CN6    | Turbo switch     |   JP11   |
          |-------------------+----------+------------------+----------|
          | IDE interface LED |    J1    | Turbo LED        |   JP12   |
          |-------------------+----------+------------------+----------|
          | Green PC          |    J2    | Power LED &      |   JP13   |
          | connector         |          | keylock          |          |
          |-------------------+----------+------------------+----------|
          | Green PC LED      |    J3    | 32-bit PCI slots |  PC1 –   |
          |                   |          |                  |   PC4    |
          |-------------------+----------+------------------+----------|
          | Reset switch      |    J4    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP4  | Unidentified |
          |   | alter                           |       |              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM 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  |
          |------------+---------------+---------------+---------------|
          |    24MB    |  (2) 2M x 36  |  (2) 1M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    32MB    |  (2) 1M x 36  |  (2) 1M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    32MB    |  (2) 2M x 36  |  (2) 2M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    32MB    |  (2) 4M x 36  |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |    40MB    |  (2) 2M x 36  |  (2) 2M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    40MB    |  (2) 4M x 36  |  (2) 1M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    48MB    |  (2) 2M x 36  |  (2) 2M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    48MB    |  (2) 4M x 36  |  (2) 2M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    56MB    |  (2) 4M x 36  |  (2) 2M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    64MB    |  (2) 4M 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      |
          |------------+---------------+---------------+---------------|
          |    72MB    |  (2) 8M x 36  |  (2) 1M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    72MB    |  (2) 4M x 36  |  (2) 4M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    80MB    |  (2) 8M x 36  |  (2) 2M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    80MB    |  (2) 4M x 36  |  (2) 4M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    80MB    |  (2) 8M x 36  |  (2) 1M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    88MB    |  (2) 8M x 36  |  (2) 2M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    96MB    |  (2) 8M x 36  |  (2) 2M x 36  |  (2) 2M x 36  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    96MB    |  (2) 8M x 36  |  (2) 4M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    96MB    |  (2) 4M x 36  |  (2) 4M x 36  |  (2) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |   104MB    |  (2) 8M x 36  |  (2) 4M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   112MB    |  (2) 8M x 36  |  (2) 4M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   128MB    | (2) 16M x 36  |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |   128MB    |  (2) 8M x 36  |  (2) 8M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   128MB    |  (2) 8M x 36  |  (2) 4M x 36  |  (2) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |   136MB    | (2) 16M x 36  |  (2) 1M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   136MB    |  (2) 8M x 36  |  (2) 8M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   144MB    | (2) 16M x 36  |  (2) 1M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   144MB    | (2) 16M x 36  |  (2) 2M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   144MB    |  (2) 8M x 36  |  (2) 8M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   152MB    | (2) 16M x 36  |  (2) 2M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   160MB    | (2) 16M x 36  |  (2) 2M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   160MB    | (2) 16M x 36  |  (2) 4M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   168MB    | (2) 16M x 36  |  (2) 4M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   176MB    | (2) 16M x 36  |  (2) 4M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   192MB    | (2) 16M x 36  |  (2) 4M x 36  |  (2) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |   192MB    | (2) 16M x 36  |  (2) 8M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   200MB    | (2) 16M x 36  |  (2) 8M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   208MB    | (2) 16M x 36  |  (2) 8M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   224MB    | (2) 16M x 36  |  (2) 8M x 36  |  (2) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |   256MB    | (2) 16M 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      |
          |------------+---------------+---------------+---------------|
          |   264MB    | (2) 16M x 36  | (2) 16M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   264MB    | (2) 32M x 36  |  (2) 1M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   272MB    | (2) 16M x 36  | (2) 16M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   272MB    | (2) 32M x 36  |  (2) 2M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   280MB    | (2) 32M x 36  |  (2) 2M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   288MB    | (2) 32M x 36  |  (2) 2M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   288MB    | (2) 32M x 36  |  (2) 4M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   296MB    | (2) 32M x 36  |  (2) 4M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   304MB    | (2) 32M x 36  |  (2) 4M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   320MB    | (2) 32M x 36  |  (2) 4M x 36  |  (2) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |   320MB    | (2) 32M x 36  |  (2) 8M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   328MB    | (2) 32M x 36  |  (2) 8M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   336MB    | (2) 32M x 36  |  (2) 8M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   352MB    | (2) 32M x 36  |  (2) 8M x 36  |  (2) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |   384MB    | (2) 32M x 36  |  (2) 8M x 36  |  (2) 8M x 36  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |   384MB    | (2) 32M x 36  | (2) 16M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |   392MB    | (2) 32M x 36  | (2) 16M x 36  |  (2) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   400MB    | (2) 32M x 36  | (2) 16M x 36  |  (2) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |   416MB    | (2) 32M x 36  | (2) 16M x 36  |  (2) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |   448MB    | (2) 32M x 36  | (2) 16M x 36  |  (2) 8M x 36  |
          |------------+---------------+---------------+---------------|
          |   512MB    | (2) 32M x 36  | (2) 16M x 36  | (2) 16M x 36  |
          |------------+---------------+---------------+---------------|
          |   512MB    | (2) 32M x 36  | (2) 32M x 36  |     None      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Note: 256KB/512KB cache is located on the Pentium Pro CPU. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          | CPU speed  |   S1/1    |   S1/2    |   S1/3    |   S1/4    |
          |------------+-----------+-----------+-----------+-----------|
          |   150MHz   |    On     |    On     |    Off    |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |   166MHz   |    Off    |    On     |    Off    |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |   180MHz   |    On     |    Off    |    On     |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |   200MHz   |    Off    |    Off    |    On     |    Off    |
          +------------------------------------------------------------+