CHAINTECH COMPUTER COMPANY, LTD.
================================

   5IDM2.1

   Processor    Pentium                                           
   Processor    75/90/100/120/133/150MHz                          
   Speed        
   Chip Set     Intel                                             
   Max. Onboard 128MB                                             
   DRAM         
   Cache        256/512KB                                         
   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, serial ports (2), VRM module connector      
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/C-D/33019-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |   CN1    | Speaker          |   JP20   |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   CN2    | Turbo switch     |   JP21   |
   |-------------------+----------+------------------+----------|
   | IDE interface 2   |   CN3    | IDE interface    |   JP22   |
   |                   |          | LED              |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 1   |   CN4    | Green PC         |   JP23   |
   |                   |          | connector        |          |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   CN5    | Turbo LED        |   JP24   |
   | interface         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | VRM module        |   CN6    | Reset switch     |   JP25   |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Parallel port     |   CN7    | 32-bit PCI slots |  PC1 -   |
   |                   |          |                  |   PC4    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   JP19   |                  |          |
   | keylock           |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       8MB        |    (2) 1M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       8MB        |        NONE        |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 2M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       16MB       |        NONE        |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 1M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       24MB       |    (2) 1M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       24MB       |    (2) 2M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 4M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       32MB       |        NONE        |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 2M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (2) 1M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (2) 4M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (2) 2M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (2) 4M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 8M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       64MB       |        NONE        |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 4M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       72MB       |    (2) 1M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |       72MB       |    (2) 8M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (2) 2M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (2) 8M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       96MB       |    (2) 4M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |       96MB       |    (2) 8M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (2) 8M x 36     |    (2) 8M x 36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1    |          TAG           |
   |-------+-------------+-------------+------------------------|
   | 256KB | (4) 32K x 8 | (4) 32K x 8 |       (1) 8K x 8       |
   |-------+-------------+-------------+------------------------|
   | 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 16K or (1) 32K x 8 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |            Size            |             JP10              |
   |----------------------------+-------------------------------|
   |           256KB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |           512KB            |       pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CACHE VOLTAGE CONFIGURATION                 |
   |------------------------------------------------------------|
   |          Voltage           |             JP12              |
   |----------------------------+-------------------------------|
   |            3.3v            |   pins 1 & 2, 3 & 4 closed    |
   |----------------------------+-------------------------------|
   |             5v             |   pins 5 & 6, 7 & 8 closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |   Speed    |           JP4            |        JP6         |
   |------------+--------------------------+--------------------|
   |   75MHz    | pins 3 & 5, 4 & 6 closed | pins 1 & 2 closed  |
   |------------+--------------------------+--------------------|
   |   90MHz    | pins 2 & 4, 3 & 5 closed | pins 2 & 3 closed  |
   |------------+--------------------------+--------------------|
   |   100MHz   | pins 1 & 3, 4 & 6 closed | pins 2 & 3 closed  |
   |------------+--------------------------+--------------------|
   |   120MHz   | pins 2 & 4, 3 & 5 closed | pins 2 & 3 closed  |
   |------------+--------------------------+--------------------|
   |   133MHz   | pins 1 & 3, 4 & 6 closed | pins 2 & 3 closed  |
   |------------+--------------------------+--------------------|
   |   150MHz   | pins 2 & 4, 3 & 5 closed | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU CLOCK SPEED CONFIGURATION                |
   |------------------------------------------------------------|
   |       Speed       |        JP11        |       JP27        |
   |-------------------+--------------------+-------------------|
   |       1.5x        |        Open        |       Open        |
   |-------------------+--------------------+-------------------|
   |        2x         |       Closed       |       Open        |
   |-------------------+--------------------+-------------------|
   |       2.5x        |       Closed       |      Closed       |
   |-------------------+--------------------+-------------------|
   |        3x         |        Open        |      Closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CPU VOLTAGE CONFIGURATION                  |
   |------------------------------------------------------------|
   |          Voltage           |             JP16              |
   |----------------------------+-------------------------------|
   |            3.3v            |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            3.4v            |       pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |            3.5v            |       pins 5 & 6 closed       |
   +------------------------------------------------------------+