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       # NEC TECHNOLOGIES, INC.
       
          PowerMate Express 486/50e
       
          Processor         80486DX                                      
          Processor Speed   50MHz                                        
          Chip Set          Intel                                        
          Max. Onboard DRAM 16MB                                         
          SRAM Cache        128KB (on CPU module)                        
          BIOS              NEC (Flash EEPROM)                           
          Dimensions        330.2mm x 218.4mm                            
          I/O Options       Proprietary CPU module slot, keyboard/bus    
                            mouse interface,                             
                                                                         
                            serial ports (2), parallel port, video port, 
                            proprietary video card sockets,              
                                                                         
                            32-bit external memory card slot, IDE        
                            interface, floppy drive interface            
          NPU Options       None                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose         | Location | Purpose            | Location |
          |-----------------+----------+--------------------+----------|
          | Proprietary CPU |    J6    | Video port         |    P6    |
          | module          |          |                    |          |
          |-----------------+----------+--------------------+----------|
          | 32-bit external |    J7    | Keyboard/Bus mouse |    P7    |
          | memory card     |          | interface          |          |
          |-----------------+----------+--------------------+----------|
          | Proprietary     | J8, J9,  | Fan power          |    P8    |
          | video card      |  & J10   |                    |          |
          |-----------------+----------+--------------------+----------|
          | IDE interface   |    P1    | IDE interface LED  |    P9    |
          |-----------------+----------+--------------------+----------|
          | Floppy drive    |    P2    | External battery   |   P10    |
          | interface       |          |                    |          |
          |-----------------+----------+--------------------+----------|
          | Parallel port   |    P3    | Power supply       |  P11 &   |
          |                 |          |                    |   P12    |
          |-----------------+----------+--------------------+----------|
          | Serial port     |    P4    | Drive power        |   P13    |
          | (COM1)          |          |                    |          |
          |-----------------+----------+--------------------+----------|
          | Serial port     |    P5    | Drive power        |   P14    |
          | (COM2)          |          |                    |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                USER CONFIGURABLE SETTINGS                  |
          |------------------------------------------------------------|
          |           Function           | Jumper/Switch |  Position   |
          |------------------------------+---------------+-------------|
          | » | Password enabled         |      3F1      | Pins 2 & 3  |
          |   |                          |               |   closed    |
          |---+--------------------------+---------------+-------------|
          |   | Password disabled        |      3F1      | Pins 1 & 2  |
          |   |                          |               |   closed    |
          |---+--------------------------+---------------+-------------|
          | » | Test mode disabled       |     10A1      |    Open     |
          |---+--------------------------+---------------+-------------|
          |   | Test mode enabled        |     10A1      |   Closed    |
          |---+--------------------------+---------------+-------------|
          | » | I/O recovery disabled    |     11B5      |    Open     |
          |---+--------------------------+---------------+-------------|
          |   | I/O recovery enabled     |     11B5      |   Closed    |
          |---+--------------------------+---------------+-------------|
          | » | NEC VGA adapter disabled |     15A1      |    Open     |
          |   | (U.S. setting)           |               |             |
          |---+--------------------------+---------------+-------------|
          |   | NEC VGA adapter enabled  |     15A1      |   Closed    |
          |---+--------------------------+---------------+-------------|
          | » | Parallel port (P3)       |     15C3      | Pins 1 & 2  |
          |   | configuration LPT1/IRQ7, |               | closed Pins |
          |   | LPT2/IRQ5                |               |    5 & 6    |
          |   |                          |               |   closed    |
          |---+--------------------------+---------------+-------------|
          |   | Parallel port (P3)       |     15C3      | Pins 2 & 3  |
          |   | configuration LPT1/IRQ5, |               | closed Pins |
          |   | LPT2/IRQ7                |               |    4 & 5    |
          |   |                          |               |   closed    |
          |---+--------------------------+---------------+-------------|
          | » | Manufacturing test loop  |     15K1      |   Closed    |
          |   | disabled                 |               |             |
          |---+--------------------------+---------------+-------------|
          |   | Manufacturing test loop  |     15K1      |    Open     |
          |   | enabled                  |               |             |
          |---+--------------------------+---------------+-------------|
          | » | BIOS flash reprogramming |     17H1      | Pins 2 & 3  |
          |   | disabled                 |               |   closed    |
          |---+--------------------------+---------------+-------------|
          |   | BIOS flash reprogramming |     17H1      | Pins 1 & 2  |
          |   | enabled                  |               |   closed    |
          |---+--------------------------+---------------+-------------|
          | » | ROM type select 27C256   |     18F1      | Pins 1 & 2  |
          |   | (28F256)                 |               |   closed    |
          |---+--------------------------+---------------+-------------|
          |   | ROM type select 27C512   |     18F1      | Pins 2 & 3  |
          |   | (28F512)                 |               |   closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DRAM CONFIGURATION                      |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       4MB        |   (2) 256K x 36    |   (2) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       8MB        |    (2) 1M x 36     |        NONE        |
          |------------------+--------------------+--------------------|
          |       16MB       |    (2) 1M x 36     |    (2) 1M x 36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Notes:The CPU card comes standard with 128KB of cache and  |
          | is not alterable. The locations of the cache chips are     |
          | unknown.                                                   |
          +------------------------------------------------------------+