YOUNG MICRO SYSTEMS, INC.
=========================

   ADVANCED/ML

   Processor        Pentium                                       
   Processor Speed  75/90/100/120/133/150/166MHz                  
   Chip Set         Intel                                         
   Video Chip Set   None                                          
   Maximum Onboard  128MB (EDO supported)                         
   Memory           
   Maximum Video    None                                          
   Memory           
   Cache            256/512KB                                     
   BIOS             Unidentified                                  
   Dimensions       304mm x 178mm                                 
   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                             
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/U-Z/34108-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose          | Location  |
   |------------------+----------+------------------+-----------|
   | Serial port 1    |   J1G1   | Reset switch     | J7K2 pins |
   |                  |          |                  |   4 & 5   |
   |------------------+----------+------------------+-----------|
   | Parallel port    |   J1J1   | Power LED &      | J7K2 pins |
   |                  |          | keylock          |  6 - 10   |
   |------------------+----------+------------------+-----------|
   | PS/2 mouse port  |   J1K1   | IDE interface    | J7K2 pins |
   |                  |          | LED              |  11 - 14  |
   |------------------+----------+------------------+-----------|
   | Serial port 2    |   J1M1   | Green PC         | J7K2 pins |
   |                  |          | connector        |  15 - 19  |
   |------------------+----------+------------------+-----------|
   | IDE interface    |   J7G1   | IR connector     | J7K2 pins |
   |                  |          |                  |  20 - 25  |
   |------------------+----------+------------------+-----------|
   | IDE interface    |   J7G2   | Speaker          | J7K2 pins |
   |                  |          |                  |  26 - 29  |
   |------------------+----------+------------------+-----------|
   | Floppy drive     |   J7L1   | 32-bit PCI slots | PC1 - PC4 |
   | interface        |          |                  |           |
   |------------------+----------+------------------+-----------|
   | Chassis fan      |   J7K2   |                  |           |
   | power            | pins 1 - |                  |           |
   |                  |    3     |                  |           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | Factory configured - do not     | J1F1  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Password normal operation       | J7K1A |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Password clear                  | J7K1A |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |>> | CMOS memory normal operation    | J7K1A |  Pins 4 & 5  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | CMOS memory clear               | J7K1A |  Pins 5 & 6  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Setup access enabled            | J7K1B |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Setup access disabled           | J7K1B |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |     Size      |        Bank 0        |       Bank 1        |
   |---------------+----------------------+---------------------|
   |      8MB      |     (2) 1M x 36      |        None         |
   |---------------+----------------------+---------------------|
   |     16MB      |     (2) 2M x 36      |        None         |
   |---------------+----------------------+---------------------|
   |     16MB      |     (2) 1M x 36      |     (2) 1M x 36     |
   |---------------+----------------------+---------------------|
   |     24MB      |     (2) 2M x 36      |     (2) 1M x 36     |
   |---------------+----------------------+---------------------|
   |     32MB      |     (2) 4M x 36      |        None         |
   |---------------+----------------------+---------------------|
   |     32MB      |     (2) 2M x 36      |     (2) 2M 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     |
   |---------------+----------------------+---------------------|
   |     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. The location of banks 0 & 1 are             |
   |      unidentified.                                         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |            Size            |            Bank 0             |
   |----------------------------+-------------------------------|
   |           256KB            |         (2) 32K x 32          |
   |----------------------------+-------------------------------|
   |           512KB            |         (2) 64K x 32          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CPU SPEED SELECTION                     |
   |------------------------------------------------------------|
   | CPU speed  |  Clock   | Multiplier |   J7K1C    |  J7K1D   |
   |            |  speed   |            |            |          |
   |------------+----------+------------+------------+----------|
   |   75MHz    |  50MHz   |    1.5x    | 2 & 3, 5 & | 1 & 2, 4 |
   |            |          |            |     6      |   & 5    |
   |------------+----------+------------+------------+----------|
   |   90MHz    |  60MHz   |    1.5x    | 2 & 3, 4 & | 1 & 2, 4 |
   |            |          |            |     5      |   & 5    |
   |------------+----------+------------+------------+----------|
   |   100MHz   |  66MHz   |    1.5x    | 1 & 2, 5 & | 1 & 2, 4 |
   |            |          |            |     6      |   & 5    |
   |------------+----------+------------+------------+----------|
   |   120MHz   |  60MHz   |     2x     | 2 & 3, 4 & | 2 & 3, 4 |
   |            |          |            |     5      |   & 5    |
   |------------+----------+------------+------------+----------|
   |   133MHz   |  66MHz   |     2x     | 1 & 2, 5 & | 2 & 3, 4 |
   |            |          |            |     6      |   & 5    |
   |------------+----------+------------+------------+----------|
   |   150MHz   |  60MHz   |    2.5x    | 2 & 3, 4 & | 2 & 3, 5 |
   |            |          |            |     5      |   & 6    |
   |------------+----------+------------+------------+----------|
   |   166MHz   |  66MHz   |    2.5x    | 1 & 2, 5 & | 2 & 3, 5 |
   |            |          |            |     6      |   & 6    |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     CPU TYPE SELECTION                     |
   |------------------------------------------------------------|
   |            Type            |             J7K1B             |
   |----------------------------+-------------------------------|
   |   |          OVD           |       Pins 5 & 6 closed       |
   |---+------------------------+-------------------------------|
   |>> |          VRE           |       Pins 4 & 5 closed       |
   +------------------------------------------------------------+