(TXT) View Source
       
       # DELL COMPUTER CORPORATION
       
          SYSTEM V386SX/XX REVISION 1
       
          Processor    80386SX                                           
          Processor    16/25MHz                                          
          Speed        
          Chip Set     VLSI                                              
          Max. Onboard 8MB                                               
          DRAM         
          Cache        None                                              
          BIOS         AMI                                               
          Dimensions   330mm x 218mm                                     
          I/O Options  Floppy drive interface, IDE interface, video      
                       interface, parallel port, PS/2 mouse port, serial 
                       ports (2), video interface                        
          NPU Options  80387SX                                           
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | IDE interface LED |    J1    | Parallel port    |   CN3    |
          |-------------------+----------+------------------+----------|
          | Reset switch      |    J2    | Floppy drive     |   CN4    |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Speaker           |    J3    | IDE interface    |   CN5    |
          |-------------------+----------+------------------+----------|
          | Power LED &       |    J4    | Video interface  |   CN6    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN1    | Mouse interface  |   CN7    |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   CN2    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | VGA IRQ generation        |      JP1      | pins 1 & 2 |
          |   | disabled                  |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | VGA IRQ generation        |      JP1      | pins 2 & 3 |
          |   | enabled                   |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | On board VGA enabled      |      JP2      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | On board VGA disabled     |      JP2      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Single IDE drive enabled  |      JP3      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Dual IDE drive enabled    |      JP3      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Pipeline mode enabled     |      JP4      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Pipeline mode disabled    |      JP4      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Diskette drive generation |      JP5      | pins 1 & 2 |
          |   | of disk change disabled   |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Diskette drive generation |      JP5      | pins 2 & 3 |
          |   | of disk change enabled    |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Monitor type select color |      JP6      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Monitor type select       |      JP6      | pins 2 & 3 |
          |   | monochrome                |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | CMOS memory normal        |      JP7      | pins 2 & 3 |
          |   | operation                 |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | CMOS memory clear         |      JP7      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Old style Multisync       |     SW1/1     |     On     |
          |   | monitor enabled           |               |            |
          |---+---------------------------+---------------+------------|
          |   | All other monitors        |     SW1/1     |    Off     |
          |   | enabled                   |               |            |
          |---+---------------------------+---------------+------------|
          |   | PS/2 style VGA installed  |     SW1/2     |     On     |
          |---+---------------------------+---------------+------------|
          |   | AT style VGA installed    |     SW1/2     |    Off     |
          |---+---------------------------+---------------+------------|
          |   | 1024 x 768 interlaced     |     SW1/5     |     On     |
          |   | enabled                   |               |            |
          |---+---------------------------+---------------+------------|
          |   | 1024 x 768 non interlaced |     SW1/5     |    Off     |
          |   | enabled                   |               |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       2MB        |     (2) 1M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       4MB        |     (2) 1M x 9     |     (2) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       8MB        |     (2) 4M x 9     |        NONE        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     VRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |      Size      |       Bank 0        |       Bank 1        |
          |----------------+---------------------+---------------------|
          |     256KB      |    (2) 256K x 4     |        NONE         |
          |----------------+---------------------+---------------------|
          |     512KB      |    (2) 256K x 4     |    (2) 256K x 4     |
          |------------------------------------------------------------|
          | Note:Bank 0 is factory installed and is not configurable.  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              VIDEO REFRESH RATES (800 X 600)               |
          |------------------------------------------------------------|
          | Refresh rate  |    Colors     |    SW1/3     |    SW1/4    |
          |---------------+---------------+--------------+-------------|
          |     56Hz      |      16       |      On      |     On      |
          |---------------+---------------+--------------+-------------|
          |     56Hz      |      256      |      On      |     Off     |
          |---------------+---------------+--------------+-------------|
          |     56Hz      |      256      |      On      |     On      |
          |---------------+---------------+--------------+-------------|
          |     60Hz      |      16       |     Off      |     On      |
          |---------------+---------------+--------------+-------------|
          |     60Hz      |      256      |     Off      |     On      |
          |---------------+---------------+--------------+-------------|
          |     60Hz      |      256      |     Off      |     Off     |
          |---------------+---------------+--------------+-------------|
          |     72Hz      |      16       |     Off      |     Off     |
          |---------------+---------------+--------------+-------------|
          |     72Hz      |      16       |      On      |     Off     |
          +------------------------------------------------------------+