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       # IBM CORPORATION
       
          PC300 (TYPE 6588)
       
          Device Type      Mainboard                                     
          Processor        Pentium II                                    
          Processor Speed  233/266/300MHz                                
          Chip Set         Unidentified                                  
          Video Chip Set   Unidentified                                  
          Maximum Onboard  512MB (EDO supported)                         
          Memory           
          Maximum Video    Unidentified                                  
          Memory           
          Cache            256/512KB (located on Pentium II CPU)         
          BIOS             Unidentified                                  
          Dimensions       330mm x 218mm                                 
          I/O Options      Ethernet 10BaseT connector, floppy drive      
                           interface, IDE interfaces (2), parallel port, 
                           PS/2 mouse port, serial port, VGA feature     
                           connector, VGA port, riser slot, IR           
                           connector, USB connectors (2), line in, line  
                           out, wavetable connector, audio in – CD-ROM   
          NPU Options      None                                          
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | 5v auxiliary      |    C1    | Ethernet 10BaseT |   CN2    |
          | power             |          | connector        |          |
          |-------------------+----------+------------------+----------|
          | Telejack          |    C2    | USB connector 2  |   CN3    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Audio in - CD-ROM |    C3    | USB connector 1  |   CN4    |
          |-------------------+----------+------------------+----------|
          | Wavetable         |    C4    | Parallel port    |   CN5    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | 5v power          |    C5    | PS/2 mouse port  |   CN6    |
          |-------------------+----------+------------------+----------|
          | 3.3v auxiliary    |    C6    | Line out         |   CN7    |
          | power             |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Power switch      |    C7    | Line in          |   CN8    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Power LED/IDE     |    C8    | VGA feature      |   CN9    |
          | interface LED     |          | connector        |          |
          |-------------------+----------+------------------+----------|
          | CPU fan power     |    C9    | Floppy drive     |   CN10   |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Chassis fan power |   C10    | IDE interface 2  |   CN11   |
          |-------------------+----------+------------------+----------|
          | SCSI interface    |   C11    | IDE interface 1  |   CN12   |
          | LED               |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Wake on LAN       |   C12    | IR connector     |   J3M1   |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Wake on modem     |   C13    | Serial port      |   J4M1   |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Chassis security  |   C14    | Riser slot       |   SL1    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | VGA port          |   CN1    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function                | Label |  Position  |
          |---------------------------------------+-------+------------|
          | » | Flash BIOS normal operation       |  J1   | Pins 5 & 6 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Flash BIOS recovery mode          |  J1   | Pins 4 & 5 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Floppy drive normal operation     |  J2   | Pins 5 & 6 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Floppy drive read only            |  J2   | Pins 4 & 5 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          | » | Factory configured - do not alter |  J4   | Pins 2 & 3 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          | » | CMOS memory normal operation      |  J4   | Pins 5 & 6 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | CMOS memory clear                 |  J4   | Pins 4 & 5 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Password normal operation         |  J5   | Pins 2 & 3 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Password clear                    |  J5   | Pins 1 & 2 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Setup access normal operation     |  J5   | Pins 5 & 6 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Setup access disabled             |  J5   | Pins 4 & 5 |
          |   |                                   |       |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    8MB     |  (1) 1M x 64  |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |    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      |
          |------------+---------------+---------------+---------------|
          |    32MB    |  (1) 1M x 64  |  (1) 1M x 64  |  (1) 1M x 64  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DIMM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    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) 4M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    64MB    |  (1) 2M x 64  |  (1) 2M x 64  |  (1) 2M x 64  |
          |------------+---------------+---------------+---------------|
          |    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) 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) 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      |
          |------------+---------------+---------------+---------------|
          |   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) 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) 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  |
          |------------+---------------+---------------+---------------|
          |   512MB    | (1) 32M x 64  | (1) 32M x 64  |     None      |
          |------------------------------------------------------------|
          |      Note: Board accepts EDO memory.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Note: 256KB/512KB cache is located on the Pentium II CPU.  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 VIDEO MEMORY CONFIGURATION                 |
          |------------------------------------------------------------|
          | Note: The size and location of the video memory is         |
          | unidentified.                                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          | CPU speed | Clock speed | Multiplier |  J2   |     J3      |
          |-----------+-------------+------------+-------+-------------|
          |  233MHz   |    66MHz    |    3.5x    | 2 & 3 | 2 & 3, 5 &  |
          |           |             |            |       |      6      |
          |-----------+-------------+------------+-------+-------------|
          |  266MHz   |    66MHz    |     4x     | 1 & 2 | 1 & 2, 4 &  |
          |           |             |            |       |      5      |
          |-----------+-------------+------------+-------+-------------|
          |  300MHz   |    66MHz    |    4.5x    | 1 & 2 | 2 & 3, 4 &  |
          |           |             |            |       |      5      |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+