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       # COMPAQ COMPUTER CORPORATION
       
          PROFESSIONAL WORKSTATION 5100
       
          Device Type      Mainboard                                     
          Processor        Pentium II                                    
          Processor Speed  266/300MHz                                    
          Chip Set         Unidentified                                  
          Video Chip Set   None                                          
          Maximum Onboard  2GB (EDO supported)                           
          Memory           
          Maximum Video    None                                          
          Memory           
          Cache            256/512KB (located on Pentium II CPU)         
          BIOS             Unidentified                                  
          Dimensions       254mm x 218mm                                 
          I/O Options      Ethernet BNC connector, Ethernet 10BaseT      
                           connector, floppy drive interface, IDE        
                           interface, SCSI interface, Wide Ultra SCSI    
                           interface, parallel port, PS/2 mouse port,    
                           serial ports (2), riser slot, VRM connectors  
                           (2), USB connectors (2), ATX power connector, 
                           line in, line out, microphone in, headphone   
                           connector                                     
          NPU Options      None                                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | ATX power         |   ATX    | Serial port 1    |   CN11   |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Power switch &    |    C1    | Parallel port    |   CN12   |
          | LEDs              |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Line in           |   CN1    | Ultra Wide SCSI  |   CN13   |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Line out          |   CN2    | PS/2 mouse port  |   CN14   |
          |-------------------+----------+------------------+----------|
          | Microphone in     |   CN3    | Floppy drive     |   CN15   |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Headphone         |   CN4    | SCSI interface   |   CN16   |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | USB connector 1   |   CN5    | IDE interface    |   CN17   |
          |-------------------+----------+------------------+----------|
          | USB connector 2   |   CN6    | External battery | J21/pins |
          |                   |          |                  |  1 - 4   |
          |-------------------+----------+------------------+----------|
          | Ethernet 10BaseT  |   CN7    | Riser slot       |   SL1    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Ethernet BNC      |   CN8    | VRM connector    |   VRM1   |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   CN10   | VRM connector    |   VRM2   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Factory configured - do not     |  CN9  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Battery type select internal    |  J21  |  Pins 6 & 7  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Battery type select external    |  J21  |  Pins 5 & 6  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | Password enabled                | SW1/1 |     Off      |
          |---+---------------------------------+-------+--------------|
          |   | Password disabled               | SW1/1 |      On      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       64MB       |    (4) 2M x 64     |        None        |
          |------------------+--------------------+--------------------|
          |      128MB       |    (4) 4M x 64     |        None        |
          |------------------+--------------------+--------------------|
          |      128MB       |    (4) 2M x 64     |    (4) 2M x 64     |
          |------------------+--------------------+--------------------|
          |      192MB       |    (4) 4M x 64     |    (4) 2M x 64     |
          |------------------+--------------------+--------------------|
          |      256MB       |    (4) 8M x 64     |        None        |
          |------------------+--------------------+--------------------|
          |      256MB       |    (4) 4M x 64     |    (4) 4M x 64     |
          |------------------+--------------------+--------------------|
          |      320MB       |    (4) 8M x 64     |    (4) 2M x 64     |
          |------------------+--------------------+--------------------|
          |      384MB       |    (4) 8M x 64     |    (4) 4M x 64     |
          |------------------+--------------------+--------------------|
          |      512MB       |    (4) 16M x 64    |        None        |
          |------------------+--------------------+--------------------|
          |      512MB       |    (4) 8M x 64     |    (4) 8M x 64     |
          |------------------+--------------------+--------------------|
          |      576MB       |    (4) 16M x 64    |    (4) 2M x 64     |
          |------------------+--------------------+--------------------|
          |      640MB       |    (4) 16M x 64    |    (4) 4M x 64     |
          |------------------+--------------------+--------------------|
          |      768MB       |    (4) 16M x 64    |    (4) 8M x 64     |
          |------------------+--------------------+--------------------|
          |      1024MB      |    (4) 32M x 64    |        None        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DIMM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |      1024MB      |    (4) 16M x 64    |    (4) 16M x 64    |
          |------------------+--------------------+--------------------|
          |      1088MB      |    (4) 32M x 64    |    (4) 2M x 64     |
          |------------------+--------------------+--------------------|
          |      1152MB      |    (4) 32M x 64    |    (4) 4M x 64     |
          |------------------+--------------------+--------------------|
          |      1280MB      |    (4) 32M x 64    |    (4) 8M x 64     |
          |------------------+--------------------+--------------------|
          |      1536MB      |    (4) 32M x 64    |    (4) 16M x 64    |
          |------------------+--------------------+--------------------|
          |      2048MB      |    (4) 32M x 64    |    (4) 32M x 64    |
          |------------------------------------------------------------|
          | Note: Board accepts EDO memory.                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Note: 256KB/512KB cache is located on the Pentium II CPU.  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |CPU speed|  Clock  |Multiplier|SW1/2|SW1/3|SW1/4|SW1/5|SW1/6|
          |         |  speed  |          |     |     |     |     |     |
          |---------+---------+----------+-----+-----+-----+-----+-----|
          | 266MHz  |  66MHz  |    4x    | Off | On  | On  | Off | Off |
          |---------+---------+----------+-----+-----+-----+-----+-----|
          | 300MHz  |  66MHz  |   4.5x   | Off | On  | Off | Off | Off |
          +------------------------------------------------------------+