DIGITAL EQUIPMENT CORPORATION
=============================

   PC 3400, PC 5400

   Device Type        Mainboard                                   
   Processor          Pentium Pro                                 
   Processor Speed    150/166/180/200/210/233/240/266MHz          
   Chip Set           Intel                                       
   Video Chip Set     ESS                                         
   Maximum Onboard    192MB (EDO supported)                       
   Memory             
   Maximum Video      2MB WRAM                                    
   Memory             
   Cache              256KB (located on Pentium Pro CPU)          
   BIOS               Unidentified                                
   Dimensions         254mm x 218mm                               
   I/O Options (CPU)  Parallel port, PS/2 mouse port, serial      
                      ports (2), VGA feature connector, VGA port, 
                      VRM connector, USB connectors (2)           
   I/O Options        32-bit PCI slots (2), IDE interfaces (2),   
   (backplane)        floppy drive interface, game/MIDI port,     
                      parallel port, 100Base-T connector,         
                      10Base-2 connector, audio in - CD-ROM,      
                      fax/modem connector                         
   NPU Options        None                                        

<gopher://bitreich.org/I/th99/m/C-D/34957-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         | Location | Purpose            | Location |
   |-----------------+----------+--------------------+----------|
   | Serial port     |   CN1    | PS/2 mouse port    |   CN6    |
   |-----------------+----------+--------------------+----------|
   | Serial port     |   CN2    | Parallel port      |   CN7    |
   |-----------------+----------+--------------------+----------|
   | USB connector 1 |   CN3    | VGA feature        |   CN8    |
   |                 |          | connector          |          |
   |-----------------+----------+--------------------+----------|
   | USB connector 2 |   CN4    | Video upgrade      |   CN9    |
   |                 |          | connectors         |          |
   |-----------------+----------+--------------------+----------|
   | VGA port        |   CN5    | VRM connector      |   VRM    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label |  Position  |
   |---------------------------------------+-------+------------|
   |>> | Boot block update disabled        |  J27  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Boot block update enabled         |  J27  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Password disabled                 | SW1/5 |    Off     |
   |---+-----------------------------------+-------+------------|
   |   | Password enabled                  | SW1/5 |     On     |
   |---+-----------------------------------+-------+------------|
   |>> | BIOS normal operation             | SW1/6 |    Off     |
   |---+-----------------------------------+-------+------------|
   |   | BIOS recovery mode                | SW1/6 |     On     |
   |---+-----------------------------------+-------+------------|
   |>> | CMOS memory normal operation      | SW1/7 |    Off     |
   |---+-----------------------------------+-------+------------|
   |   | CMOS memory clear                 | SW1/7 |     On     |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter | SW1/8 |     On     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     SIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
   |------------+---------------+---------------+---------------|
   |    8MB     |  (2) 1M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |    16MB    |  (2) 1M x 36  |  (2) 1M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |    16MB    |  (2) 2M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |    24MB    |  (2) 1M x 36  |  (2) 1M x 36  |  (2) 1M x 36  |
   |------------+---------------+---------------+---------------|
   |    32MB    |  (2) 2M x 36  |  (2) 2M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |    32MB    |  (2) 4M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |    48MB    |  (2) 2M x 36  |  (2) 2M x 36  |  (2) 2M x 36  |
   |------------+---------------+---------------+---------------|
   |    64MB    |  (2) 4M x 36  |  (2) 4M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |    64MB    |  (2) 8M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |    96MB    |  (2) 4M x 36  |  (2) 4M x 36  |  (2) 4M x 36  |
   |------------+---------------+---------------+---------------|
   |   128MB    |  (2) 8M x 36  |  (2) 8M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |   128MB    | (2) 16M x 36  |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |   136MB    | (2) 16M x 36  |  (2) 1M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |   144MB    | (2) 16M x 36  |  (2) 1M x 36  |  (2) 1M x 36  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SIMM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
   |------------+---------------+---------------+---------------|
   |   144MB    | (2) 16M x 36  |  (2) 2M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |   160MB    | (2) 16M x 36  |  (2) 2M x 36  |  (2) 2M x 36  |
   |------------+---------------+---------------+---------------|
   |   160MB    | (2) 16M x 36  |  (2) 4M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |   192MB    | (2) 16M x 36  |  (2) 4M x 36  |  (2) 4M x 36  |
   |------------+---------------+---------------+---------------|
   |   192MB    | (2) 16M x 36  |  (2) 8M x 36  |     None      |
   |------------+---------------+---------------+---------------|
   |   192MB    |  (2) 8M x 36  |  (2) 8M x 36  |  (2) 8M x 36  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Note: 256KB cache is located on the Pentium Pro CPU.       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 VIDEO MEMORY CONFIGURATION                 |
   |------------------------------------------------------------|
   |      Note: 1MB video memory is factory installed and is    |
   |      not configurable. To increase to 2MB, install upgrade |
   |      module at CN9.                                        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CPU SPEED SELECTION                     |
   |------------------------------------------------------------|
   |CPU speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
   |---------+-----------+----------+------+------+------+------|
   | 150MHz  |   60MHz   |   2.5x   | Off  | Off  |  On  |  On  |
   |---------+-----------+----------+------+------+------+------|
   | 166MHz  |   66MHz   |   2.5x   |  On  | Off  |  On  |  On  |
   |---------+-----------+----------+------+------+------+------|
   | 180MHz  |   60MHz   |    3x    | Off  |  On  | Off  |  On  |
   |---------+-----------+----------+------+------+------+------|
   | 200MHz  |   66MHz   |    3x    |  On  |  On  | Off  |  On  |
   |---------+-----------+----------+------+------+------+------|
   | 210MHz  |   60MHz   |   3.5x   | Off  | Off  | Off  |  On  |
   |---------+-----------+----------+------+------+------+------|
   | 240MHz  |   60MHz   |    4x    | Off  |  On  |  On  | Off  |
   |---------+-----------+----------+------+------+------+------|
   | 233MHz  |   66MHz   |   3.5x   |  On  | Off  | Off  |  On  |
   |---------+-----------+----------+------+------+------+------|
   | 266MHz  |   66MHz   |    4x    |  On  |  On  |  On  | Off  |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/m/C-D/34957-2.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose             | Location | Purpose        | Location |
   |---------------------+----------+----------------+----------|
   | Logic board         |   CN1    | SCSI interface |   CN9    |
   | connectors          |          | LED            |          |
   |---------------------+----------+----------------+----------|
   | Video in connector  |   CN2    | Game/MIDI port |   CN10   |
   |---------------------+----------+----------------+----------|
   | IDE interface 1     |   CN3    | Audio in -     |   CN11   |
   |                     |          | CD-ROM         |          |
   |---------------------+----------+----------------+----------|
   | IDE interface 2     |   CN4    | Fax/modem      |   CN12   |
   |                     |          | connector      |          |
   |---------------------+----------+----------------+----------|
   | Floppy drive        |   CN5    | Audio          |   CN13   |
   | interface           |          | connector      |          |
   |---------------------+----------+----------------+----------|
   | 100Base-T connector |   CN6    | Control panel  |   CN14   |
   |                     |          | connector      |          |
   |---------------------+----------+----------------+----------|
   | 10Base-T/10Base-2   |   CN7    | 32-bit PCI     |  PC1 -   |
   | connector           |          | slots          |   PC2    |
   |---------------------+----------+----------------+----------|
   | Chassis fan power   |   CN8    |                |          |
   +------------------------------------------------------------+