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       # IBM CORPORATION
       
          APTIVA 2139 SL-A
       
          Device Type          Mainboard                                 
          Processor            Pentium II                                
          Processor Speed      350/400/450MHz                            
          Chip Set             Unidentified                              
          Video Chip Set       ATI                                       
          Maximum Onboard      384MB (EDO & SDRAM supported)             
          Memory               
          Maximum Video Memory 4MB                                       
          Cache                512KB (located on Pentium II CPU)         
          BIOS                 Unidentified                              
          Dimensions           305mm x 244mm                             
          I/O Options          32-bit PCI slots (3), floppy drive        
                               interface, game/MIDI port, IDE interfaces 
                               (2), parallel port, PS/2 mouse port,      
                               serial ports (2), VGA port, USB           
                               connectors (2), ATX power connector, line 
                               in, line out, microphone in, audio in –   
                               CD-ROM                                    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | ATX power         |   ATX    | AMC connector    |   CN7    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | USB connector 1   |   CN2    | Modem connector  |   CN8    |
          |-------------------+----------+------------------+----------|
          | USB connector 2   |   CN2A   | Audio in –       |   CN9    |
          |                   |          | CD-ROM           |          |
          |-------------------+----------+------------------+----------|
          | PS/2 mouse port   |   CN3    | Wake on modem    |   CN10   |
          |                   |          | connector        |          |
          |-------------------+----------+------------------+----------|
          | Parallel port     |   CN4    | Floppy drive     |   CN11   |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN4B   | IDE interface 1  |   CN12   |
          |-------------------+----------+------------------+----------|
          | VGA port          |   CN4C   | IDE interface 2  |   CN13   |
          |-------------------+----------+------------------+----------|
          | Game/MIDI port    |   CN5    | CS4610 connector |   CN15   |
          |-------------------+----------+------------------+----------|
          | Microphone in     |   CN5A   | CPU fan power    |   FN1    |
          |-------------------+----------+------------------+----------|
          | Line in           |   CN5B   | CPU fan power    |   FN2    |
          |-------------------+----------+------------------+----------|
          | Line out          |   CN5C   | Power LED &      |   JP4    |
          |                   |          | keylock          |          |
          |-------------------+----------+------------------+----------|
          | IDE interface LED |   CN6    | 32-bit PCI slots |  PC1 –   |
          |                   |          |                  |   PC3    |
          |------------------------------------------------------------|
          | Note: The location of CN10 is unidentified.                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          |   | Audio resource write protected  |  J1   |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Audio resource programmable     |  J1   |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | VGA IRQ disabled                |  JP2  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | VGA IRQ enabled                 |  JP2  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP3  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JPX2  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          |   | Password enabled                | S1/2  |     Off      |
          |---+---------------------------------+-------+--------------|
          |   | Password disabled               | S1/2  |      On      |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | S1/3  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | S1/4  | Unidentified |
          |   | alter                           |       |              |
          |------------------------------------------------------------|
          | Note: The location of J1 is unidentified.                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size     |    Bank 0     |    Bank 1     |    Bank 2    |
          |-------------+---------------+---------------+--------------|
          |    16MB     |  (1) 2M x 64  |     None      |     None     |
          |-------------+---------------+---------------+--------------|
          |    32MB     |  (1) 4M x 64  |     None      |     None     |
          |-------------+---------------+---------------+--------------|
          |    32MB     |  (1) 2M x 64  |  (1) 2M x 64  |     None     |
          |-------------+---------------+---------------+--------------|
          |    48MB     |  (1) 4M x 64  |  (1) 2M x 64  |     None     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DIMM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    48MB    |  (1) 2M x 64  |  (1) 2M x 64  |  (1) 2M 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      |
          |------------+---------------+---------------+---------------|
          |    80MB    |  (1) 8M x 64  |  (1) 2M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |    80MB    |  (1) 4M x 64  |  (1) 4M x 64  |  (1) 2M 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  |
          |------------+---------------+---------------+---------------|
          |   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) 2M x 64  |     None      |
          |------------+---------------+---------------+---------------|
          |   144MB    |  (1) 8M x 64  |  (1) 8M x 64  |  (1) 2M 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  |
          |------------+---------------+---------------+---------------|
          |   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  |
          |------------+---------------+---------------+---------------|
          |   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: 4MB video memory is factory installed and is not     |
          | configurable. The location is unidentified.                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |CPU speed|Clock speed|Multiplier|S1/1 |S1/5 |SW1/6|S1/7|S1/8|
          |---------+-----------+----------+-----+-----+-----+----+----|
          | 350MHz  |  100MHz   |   3.5x   | Off | On  | On  |Off | On |
          |---------+-----------+----------+-----+-----+-----+----+----|
          | 400MHz  |  100MHz   |    4x    | Off | Off | On  | On | On |
          |---------+-----------+----------+-----+-----+-----+----+----|
          | 450MHz  |  100MHz   |   4.5x   | Off | Off | On  |Off | On |
          +------------------------------------------------------------+