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       # CHAINTECH COMPUTER COMPANY, LTD.
       
          5SEM4.1
       
          Processor        Pentium                                       
          Processor Speed  75/90/100/120/133/150MHz                      
          Chip Set         SIS                                           
          Video Chip Set   None                                          
          Maximum Onboard  128MB (EDO supported)                         
          Memory           
          Maximum Video    None                                          
          Memory           
          Cache            256/512/1024KB                                
          BIOS             Award                                         
          Dimensions       275mm x 220mm                                 
          I/O Options      32-bit PCI slots (4), floppy drive interface, 
                           green PC connector, IDE interfaces (2),       
                           parallel port, serial ports (2), cache slot,  
                           IR connector, VRM connector                   
          NPU Options      None                                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |    J4    | Power LED &      |   J13    |
          |                   |          | keylock          |          |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |    J5    | Speaker          |   J15    |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |    J6    | Reset switch     |   J16    |
          | interface         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Parallel port     |    J7    | Turbo LED        |   J17    |
          |-------------------+----------+------------------+----------|
          | IDE interface 1   |    J8    | IDE interface    |   J18    |
          |                   |          | LED              |          |
          |-------------------+----------+------------------+----------|
          | IDE interface 2   |    J9    | IR connector     |   JP25   |
          |-------------------+----------+------------------+----------|
          | Green PC LED      |   J10    | 32-bit PCI slots |  PC1 -   |
          |                   |          |                  |   PC4    |
          |-------------------+----------+------------------+----------|
          | Green PC          |   J11    | Cache slot       |   SL1    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Turbo switch      |   J12    | VRM connector    |   VRM    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |             Function              | Label |    Position    |
          |-----------------------------------+-------+----------------|
          |   | CPU clock select clock/2      |  JP8  |      Open      |
          |   | (60/66MHz)                    |       |                |
          |---+-------------------------------+-------+----------------|
          |   | CPU clock select clock =      |  JP8  |     Closed     |
          |   | clock (50MHz)                 |       |                |
          |---+-------------------------------+-------+----------------|
          |   | IR connector type select      | JP25  |   Pins 1 - 4   |
          |   | Intel                         |       |     closed     |
          |---+-------------------------------+-------+----------------|
          |   | IR connector type select      | JP25  |   Pins 2 - 6   |
          |   | Hewlett-Packard               |       |     closed     |
          |---+-------------------------------+-------+----------------|
          |   | VRM on board regulator        |  VRM  |      Open      |
          |   | disabled                      |       |                |
          |---+-------------------------------+-------+----------------|
          |   | VRM on board regulator        |  VRM  | Pins 6 & 7, 21 |
          |   | enabled                       |       |  & 22 closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       2MB        |   (2) 256K x 36    |        None        |
          |------------------+--------------------+--------------------|
          |       4MB        |   (2) 512K x 36    |        None        |
          |------------------+--------------------+--------------------|
          |       4MB        |   (2) 256K x 36    |   (2) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       6MB        |   (2) 512K x 36    |   (2) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       8MB        |    (2) 1M x 36     |        None        |
          |------------------+--------------------+--------------------|
          |       8MB        |   (2) 512K x 36    |   (2) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       10MB       |    (2) 1M x 36     |   (2) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       12MB       |    (2) 1M x 36     |   (2) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       16MB       |    (2) 2M x 36     |        None        |
          |------------------+--------------------+--------------------|
          |       16MB       |    (2) 1M x 36     |    (2) 1M x 36     |
          |------------------+--------------------+--------------------|
          |       18MB       |    (2) 2M x 36     |   (2) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       20MB       |    (2) 2M x 36     |   (2) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       24MB       |    (2) 1M x 36     |    (2) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       32MB       |    (2) 4M x 36     |        None        |
          |------------------+--------------------+--------------------|
          |       32MB       |    (2) 2M x 36     |    (2) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       34MB       |    (2) 4M x 36     |   (2) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       36MB       |    (2) 4M x 36     |   (2) 512K 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     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |     Size     |       Bank 0       |         Bank 1         |
          |--------------+--------------------+------------------------|
          |     66MB     |    (2) 8M x 36     |     (2) 256K x 36      |
          |--------------+--------------------+------------------------|
          |     68MB     |    (2) 8M x 36     |     (2) 512K 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       |
          |------------------------------------------------------------|
          | Note: Board accepts EDO memory. Board also accepts x 32    |
          | SIMMs.                                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |    Bank 0    |     TAG     |          SL1          |
          |-------+--------------+-------------+-----------------------|
          | 256KB | (8) 32K x 8  | (1) 8K x 8  |     Not installed     |
          |-------+--------------+-------------+-----------------------|
          | 256KB |     None     |    None     |     256KB module      |
          |       |              |             |       installed       |
          |-------+--------------+-------------+-----------------------|
          | 512KB | (8) 64K x 8  | (1) 32K x 8 |     Not installed     |
          |-------+--------------+-------------+-----------------------|
          | 512KB |     None     |    None     |     512KB module      |
          |       |              |             |       installed       |
          |-------+--------------+-------------+-----------------------|
          |  1MB  | (8) 128K x 8 | (1) 32K x 8 |     Not installed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |       Size       |        JP13        |        JP14        |
          |------------------+--------------------+--------------------|
          |      256KB       | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |      512KB       | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |       1MB        | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CACHE VOLTAGE CONFIGURATION                 |
          |------------------------------------------------------------|
          |          Voltage           |             JP11              |
          |----------------------------+-------------------------------|
          |           Mixed            |   Pins 3 & 4, 5 & 6 closed    |
          |----------------------------+-------------------------------|
          |            3.3v            |   Pins 1 & 2, 7 & 8 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CACHE TYPE CONFIGURATION                  |
          |------------------------------------------------------------|
          |            Type            |             JP12              |
          |----------------------------+-------------------------------|
          |        Asynchronous        |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |       Pipeline burst       |       Pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |CPU speed|Clock speed|Multiplier| JP9  | JP10 | JP19 | JP20 |
          |---------+-----------+----------+------+------+------+------|
          |  75MHz  |   50MHz   |   1.5x   |Closed|Closed| Open | Open |
          |---------+-----------+----------+------+------+------+------|
          |  90MHz  |   60MHz   |   1.5x   |Closed| Open | Open | Open |
          |---------+-----------+----------+------+------+------+------|
          | 100MHz  |   66MHz   |   1.5x   | Open |Closed| Open | Open |
          |---------+-----------+----------+------+------+------+------|
          | 120MHz  |   60MHz   |    2x    |Closed| Open |Closed| Open |
          |---------+-----------+----------+------+------+------+------|
          | 133MHz  |   66MHz   |    2x    |Closed| Open |Closed| Open |
          |---------+-----------+----------+------+------+------+------|
          | 150MHz  |   60MHz   |   2.5x   |Closed| Open |Closed|Closed|
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU VOLTAGE SELECTION                    |
          |------------------------------------------------------------|
          |          Voltage           |             JP18              |
          |----------------------------+-------------------------------|
          |            3.3v            |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |            3.4v            |       Pins 3 & 4 closed       |
          |----------------------------+-------------------------------|
          |            3.5v            |       Pins 5 & 6 closed       |
          +------------------------------------------------------------+