IBM CORPORATION
===============

   APTIVA 2144 TYPE G-1

   Processor        Pentium                                       
   Processor Speed  75/90/100MHz                                  
   Chip Set         Unidentified                                  
   Video Chip Set   Unidentified                                  
   Maximum Onboard  128MB                                         
   Memory           
   Maximum Video    2MB                                           
   Memory           
   Cache            256/512KB                                     
   BIOS             Unidentified                                  
   Dimensions       254mm x 218mm                                 
   I/O Options      Floppy drive interface, IDE interfaces (2),   
                    parallel port, PS/2 mouse port, serial ports  
                    (2), VESA feature connector, VGA port, riser  
                    slot                                          
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/I-L/33957-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Front panel       |   J1D1   | Serial port      |   J6K1   |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | VGA port          |   J1K1   | PS/2 mouse port  |   J7K1   |
   |-------------------+----------+------------------+----------|
   | VESA feature      |   J1H1   | IDE interface 2  |   J8F1   |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Front panel       |   J2A2   | Floppy drive     |   J9D1   |
   | connector         |          | interface        |          |
   |-------------------+----------+------------------+----------|
   | Parallel port     |   J3K1   | IDE interface 1  |   J9F2   |
   |-------------------+----------+------------------+----------|
   | Serial port       |   J5K1   | Riser slot       |   SL1    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function              |  Label  |   Position   |
   |-----------------------------------+---------+--------------|
   | ? | Flash BIOS normal operation   |  J5J1   |  Pins 1 & 3  |
   |   |                               |         |    closed    |
   |---+-------------------------------+---------+--------------|
   |   | Flash BIOS clear              |  J5J1   |  Pins 1 & 2  |
   |   |                               |         |    closed    |
   |---+-------------------------------+---------+--------------|
   | ? | Factory configured - do not   |  J8A1   | Unidentified |
   |   | alter                         |         |              |
   |---+-------------------------------+---------+--------------|
   | ? | Password enabled              | SW1E1/3 |     Off      |
   |---+-------------------------------+---------+--------------|
   |   | Password disabled             | SW1E1/3 |      On      |
   |---+-------------------------------+---------+--------------|
   | ? | CMOS memory normal operation  | SW1E1/4 |     Off      |
   |---+-------------------------------+---------+--------------|
   |   | CMOS memory clear             | SW1E1/4 |      On      |
   |---+-------------------------------+---------+--------------|
   | ? | Factory configured - do not   | SW1E1/5 |     Off      |
   |   | alter                         |         |              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |     Size      |        Bank 0        |       Bank 1        |
   |---------------+----------------------+---------------------|
   |      8MB      |     (2) 1M x 36      |        None         |
   |---------------+----------------------+---------------------|
   |     16MB      |     (2) 2M x 36      |        None         |
   |---------------+----------------------+---------------------|
   |     16MB      |     (2) 1M x 36      |     (2) 1M x 36     |
   |---------------+----------------------+---------------------|
   |     24MB      |     (2) 2M x 36      |     (2) 1M x 36     |
   |---------------+----------------------+---------------------|
   |     32MB      |     (2) 4M x 36      |        None         |
   |---------------+----------------------+---------------------|
   |     32MB      |     (2) 2M x 36      |     (2) 2M x 36     |
   |---------------+----------------------+---------------------|
   |     40MB      |     (2) 4M x 36      |     (2) 1M x 36     |
   |---------------+----------------------+---------------------|
   |     48MB      |     (2) 4M x 36      |     (2) 2M x 36     |
   |---------------+----------------------+---------------------|
   |     64MB      |     (2) 8M x 36      |        None         |
   |---------------+----------------------+---------------------|
   |     64MB      |     (2) 4M x 36      |     (2) 4M x 36     |
   |---------------+----------------------+---------------------|
   |     72MB      |     (2) 8M x 36      |     (2) 1M x 36     |
   |---------------+----------------------+---------------------|
   |     80MB      |     (2) 8M x 36      |     (2) 2M x 36     |
   |---------------+----------------------+---------------------|
   |     96MB      |     (2) 8M x 36      |     (2) 4M x 36     |
   |---------------+----------------------+---------------------|
   |     128MB     |     (2) 8M x 36      |     (2) 8M x 36     |
   |------------------------------------------------------------|
   | Note: Board accepts x 32 SIMMs. The location of banks 0 &  |
   | 1 are unidentified.                                        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |        TAG         |
   |------------------+--------------------+--------------------|
   |      256KB       |    (8) 32K x 8     |    (1) 32K x 8     |
   |------------------+--------------------+--------------------|
   |      512KB       |    (8) 64K x 8     |    (1) 32K x 8     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE SWITCH CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size        |      SW1E1/1       |      SW1E1/2      |
   |-------------------+--------------------+-------------------|
   |       None        |         On         |        N/A        |
   |-------------------+--------------------+-------------------|
   |       256KB       |        Off         |        Off        |
   |-------------------+--------------------+-------------------|
   |       512KB       |        Off         |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 VIDEO MEMORY CONFIGURATION                 |
   |------------------------------------------------------------|
   |     Size     |        Bank 0        |        Bank 1        |
   |--------------+----------------------+----------------------|
   |     1MB      |    (2) 256K x 16     |         None         |
   |--------------+----------------------+----------------------|
   |     2MB      |    (2) 256K x 16     |    (2) 256K x 16     |
   |------------------------------------------------------------|
   | Note: Bank 0 is factory installed and is not configurable. |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CPU SPEED SELECTION                     |
   |------------------------------------------------------------|
   |   CPU   | Clock | Multiplier | SW1E1/6 | SW1E1/7 | SW1E1/8 |
   |  speed  | speed |            |         |         |         |
   |---------+-------+------------+---------+---------+---------|
   |  75MHz  | 50MHz |    1.5x    |   Off   |   Off   |   Off   |
   |---------+-------+------------+---------+---------+---------|
   |  90MHz  | 60MHz |    1.5x    |   Off   |   On    |   Off   |
   |---------+-------+------------+---------+---------+---------|
   | 100MHz  | 66MHz |    1.5x    |   Off   |   Off   |   On    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     CPU TYPE SELECTION                     |
   |------------------------------------------------------------|
   |            Type            |             J9C1              |
   |----------------------------+-------------------------------|
   |          Standard          |       Pins 1 & 3 closed       |
   |----------------------------+-------------------------------|
   |            VRE             |       Pins 5 & 7 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  ISA BUS SPEED SELECTION                   |
   |------------------------------------------------------------|
   | CPU speed | ISA 1/6 | ISA 1/8 | J5J1 (ISA  |   J5J1 (ISA   |
   |           |         |         |    1/6)    |     1/8)      |
   |-----------+---------+---------+------------+---------------|
   |   75MHz   | 8.33MHz | 6.25MHz | Pins 5 & 7 |  Pins 5 & 7   |
   |           |         |         |    open    |    closed     |
   |-----------+---------+---------+------------+---------------|
   |   90MHz   |  10MHz  | 7.5MHz  | Pins 5 & 7 |  Pins 5 & 7   |
   |           |         |         |    open    |    closed     |
   |-----------+---------+---------+------------+---------------|
   |  100MHz   |  11MHz  | 8.25MHz | Pins 5 & 7 |  Pins 5 & 7   |
   |           |         |         |    open    |    closed     |
   +------------------------------------------------------------+