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       # DIGITAL EQUIPMENT CORPORATION
       
          PC 3500, PC 5510
       
          Device     Mainboard                                              
          Type       
          Processor  Pentium II                                             
          Processor  133/166/200/233/266/300/333/366/400/433/466/500/533MHz 
          Speed      
          Chip Set   Intel 440LX                                            
          Video Chip Diamond, Matrox                                        
          Set        
          Maximum    384MB (SDRAM supported)                                
          Onboard    
          Memory     
          Maximum    8MB                                                    
          Video      
          Memory     
          Cache      512KB                                                  
          BIOS       Unidentified                                           
          Dimensions 330mm x 218mm                                          
          I/O        Ethernet 10BaseT connector, AUI/BNC connector floppy   
          Options    drive interface, parallel port, PS/2 mouse port,       
                     serial port, VGA port, VRM connector, USB connectors   
                     (2), AGP slot                                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose         | Location | Purpose            | Location |
          |-----------------+----------+--------------------+----------|
          | AGP slot        |   AGP    | PS/2 mouse port    |   CN6    |
          |-----------------+----------+--------------------+----------|
          | Serial port     |   CN1    | Ethernet 10BaseT   |   CN7    |
          |                 |          | connector          |          |
          |-----------------+----------+--------------------+----------|
          | AGP video port  |   CN2    | Parallel port      |   CN8    |
          |-----------------+----------+--------------------+----------|
          | VGA port        |   CN3    | VRM connector      |   CN9    |
          |-----------------+----------+--------------------+----------|
          | USB connector 1 |   CN4    | AUI/BNC connector  |   CN10   |
          |-----------------+----------+--------------------+----------|
          | USB connector 2 |   CN5    | Video upgrade      |   CN11   |
          |                 |          | connector          |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function                | Label  | Position  |
          |---------------------------------------+--------+-----------|
          | » | Password normal operation         | SW1/1  |    Off    |
          |---+-----------------------------------+--------+-----------|
          |   | Password clear                    | SW1/1  |    On     |
          |---+-----------------------------------+--------+-----------|
          | » | Flash BIOS normal operation       | SW1/2  |    Off    |
          |---+-----------------------------------+--------+-----------|
          |   | Flash BIOS recovery mode          | SW1/2  |    On     |
          |---+-----------------------------------+--------+-----------|
          | » | CMOS memory normal operation      | SW1/3  |    Off    |
          |---+-----------------------------------+--------+-----------|
          |   | CMOS memory clear                 | SW1/3  |    On     |
          |---+-----------------------------------+--------+-----------|
          | » | Factory configured - do not alter | SW1/4  |    Off    |
          |---+-----------------------------------+--------+-----------|
          | » | Flash BIOS write protect disabled | SW1/5  |    Off    |
          |---+-----------------------------------+--------+-----------|
          |   | Flash BIOS write protect enabled  | SW1/5  |    On     |
          |---+-----------------------------------+--------+-----------|
          | » | Factory configured - do not alter | SW1/6  |    Off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    16MB    |  (1) 2M x 64  |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |    16MB    |  (1) 1M x 64  |  (1) 1M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    24MB    |  (1) 2M x 64  |  (1) 1M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    24MB    |  (1) 1M x 64  |  (1) 1M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |    32MB    |  (1) 4M x 64  |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |    32MB    |  (1) 2M x 64  |  (1) 1M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |    32MB    |  (1) 2M x 64  |  (1) 2M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    40MB    |  (1) 4M x 64  |  (1) 1M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    40MB    |  (1) 2M x 64  |  (1) 2M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |    48MB    |  (1) 4M x 64  |  (1) 1M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |    48MB    |  (1) 4M x 64  |  (1) 2M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    48MB    |  (1) 2M x 64  |  (1) 2M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |    56MB    |  (1) 4M x 64  |  (1) 2M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |    64MB    |  (1) 8M x 64  |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |    64MB    |  (1) 4M x 64  |  (1) 2M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |    64MB    |  (1) 4M x 64  |  (1) 4M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    72MB    |  (1) 8M x 64  |  (1) 1M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    72MB    |  (1) 4M x 64  |  (1) 4M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |    80MB    |  (1) 8M x 64  |  (1) 1M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |    80MB    |  (1) 8M x 64  |  (1) 2M x 64  |     None      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DIMM CONFIGURATION (CON'T)                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    80MB    |  (1) 4M x 64  |  (1) 4M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |    88MB    |  (1) 8M x 64  |  (1) 2M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |    96MB    |  (1) 8M x 64  |  (1) 2M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |    96MB    |  (1) 8M x 64  |  (1) 4M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    96MB    |  (1) 4M x 64  |  (1) 4M x 64  |  (1) 4M x 64  |
          |------------+---------------+---------------+---------------|
          |   104MB    |  (1) 8M x 64  |  (1) 4M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |   112MB    |  (1) 8M x 64  |  (1) 4M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |   128MB    | (1) 16M x 64  |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |   128MB    |  (1) 8M x 64  |  (1) 4M x 64  |  (1) 4M x 64  |
          |------------+---------------+---------------+---------------|
          |   128MB    |  (1) 8M x 64  |  (1) 8M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |   136MB    | (1) 16M x 64  |  (1) 1M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |   136MB    |  (1) 8M x 64  |  (1) 8M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |   144MB    | (1) 16M x 64  |  (1) 1M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |   144MB    | (1) 16M x 64  |  (1) 2M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |   144MB    |  (1) 8M x 64  |  (1) 8M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |   152MB    | (1) 16M x 64  |  (1) 2M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |   160MB    | (1) 16M x 64  |  (1) 2M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |   160MB    | (1) 16M x 64  |  (1) 4M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |   160MB    |  (1) 8M x 64  |  (1) 8M x 64  |  (1) 4M x 64  |
          |------------+---------------+---------------+---------------|
          |   168MB    | (1) 16M x 64  |  (1) 4M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |   176MB    | (1) 16M x 64  |  (1) 4M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |   192MB    | (1) 16M x 64  |  (1) 4M x 64  |  (1) 4M x 64  |
          |------------+---------------+---------------+---------------|
          |   192MB    | (1) 16M x 64  |  (1) 8M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |   192MB    |  (1) 8M x 64  |  (1) 8M x 64  |  (1) 8M x 64  |
          |------------+---------------+---------------+---------------|
          |   200MB    | (1) 16M x 64  |  (1) 8M x 64  |  (1) 1M x 64  |
          |------------+---------------+---------------+---------------|
          |   208MB    | (1) 16M x 64  |  (1) 8M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |   224MB    | (1) 16M x 64  |  (1) 8M x 64  |  (1) 4M x 64  |
          |------------+---------------+---------------+---------------|
          |   256MB    | (1) 16M x 64  |  (1) 8M x 64  |  (1) 8M x 64  |
          |------------+---------------+---------------+---------------|
          |   384MB    | (1) 16M x 64  | (1) 16M x 64  | (1) 16M x 64  |
          |------------------------------------------------------------|
          | Note: Board accepts SDRAM memory.                          |
          +------------------------------------------------------------+
       
          +-----------------------------------------------------+
          |                 CACHE CONFIGURATION                 |
          |-----------------------------------------------------|
          | Note: 512KB cache is located on the Pentium II CPU. |
          +-----------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 VIDEO MEMORY CONFIGURATION                 |
          |------------------------------------------------------------|
          | Note: If board has a Matrox controller, the onboard memory |
          | is 2MB. It can be upgraded to 6MB by installing a 4MB      |
          | module in CN11. If board has a Diamond controller, the     |
          | onboard memory is 4MB. It can be upgraded to 8MB by        |
          | installing a 4MB module in CN11                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |CPU speed|Clock speed|Multiplier|SW1/7 |SW1/8 |SW1/9 |SW/10 |
          |---------+-----------+----------+------+------+------+------|
          | 133MHz  |   66MHz   |    2x    |  On  |  On  |  On  |  On  |
          |---------+-----------+----------+------+------+------+------|
          | 166MHz  |   66MHz   |   2.5x   |  On  |  On  | Off  |  On  |
          |---------+-----------+----------+------+------+------+------|
          | 200MHz  |   66MHz   |    3x    | Off  |  On  |  On  |  On  |
          |---------+-----------+----------+------+------+------+------|
          | 233MHz  |   66MHz   |   3.5x   | Off  |  On  | Off  |  On  |
          |---------+-----------+----------+------+------+------+------|
          | 266MHz  |   66MHz   |    4x    |  On  | Off  |  On  |  On  |
          |---------+-----------+----------+------+------+------+------|
          | 300MHz  |   66MHz   |   4.5x   |  On  | Off  | Off  |  On  |
          |---------+-----------+----------+------+------+------+------|
          | 333MHz  |   66MHz   |    5x    | Off  | Off  |  On  |  On  |
          |---------+-----------+----------+------+------+------+------|
          | 366MHz  |   66MHz   |   5.5x   | Off  | Off  | Off  | Off  |
          |---------+-----------+----------+------+------+------+------|
          | 400MHz  |   66MHz   |    6x    |  On  |  On  |  On  | Off  |
          |---------+-----------+----------+------+------+------+------|
          | 433MHz  |   66MHz   |   6.5x   |  On  |  On  | Off  | Off  |
          |---------+-----------+----------+------+------+------+------|
          | 466MHz  |   66MHz   |    7x    | Off  |  On  |  On  | Off  |
          |---------+-----------+----------+------+------+------+------|
          | 500MHz  |   66MHz   |   7.5x   | Off  |  On  | Off  | Off  |
          |---------+-----------+----------+------+------+------+------|
          | 533MHz  |   66MHz   |    8x    |  On  | Off  |  On  | Off  |
          +------------------------------------------------------------+