(TXT) View Source
       
       # DELL COMPUTER CORPORATION
       
          XPS 486 MIDSIZE VER. 2
       
          Processor    80486DX2                                          
          Processor    50(internal)/66(internal)MHz                      
          Speed        
          Chip Set     Micronics                                         
          Max. Onboard 64MB                                              
          DRAM         
          Cache        128/256KB                                         
          BIOS         AMI                                               
          Dimensions   330mm x 218mm                                     
          I/O Options  32-bit VESA local bus slots (2), floppy drive     
                       interface, IDE interface, parallel port, PS/2     
                       mouse port, serial ports (2)                      
          NPU Options  None                                              
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | External battery  |   CN1    | Serial port 2    |   J16    |
          |-------------------+----------+------------------+----------|
          | PS/2 mouse port   |   CN2    | Speaker          |   J33    |
          |-------------------+----------+------------------+----------|
          | IDE interface     |   CN3    | Power LED &      |   J34    |
          |                   |          | keylock          |          |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |   CN4    | IDE interface    |   W11    |
          | interface         |          | LED              |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   J12    | Reset switch     |   W12    |
          |-------------------+----------+------------------+----------|
          | Parallel port     |   J15    | 32-bit VESA      |  SL1 &   |
          |                   |          | local bus slots  |   SL2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Factory configured - do not      |   W1   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Parallel port bidirectional      |   W5   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Parallel port unidirectional     |   W5   | pins 2 & 3 |
          |   | (printer)                        |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select color        |   W6   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |   W6   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   W7   |   Closed   |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   W8   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  W20   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  W31   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  W40   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  W70   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  W71   |    Open    |
          |   | alter                            |        |            |
          |------------------------------------------------------------|
          | Note: The location of the factory configured jumpers is    |
          | unknown.                                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 1M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 1M x 36 | (1) 1M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 4M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 1M x 36 | (1) 4M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 24MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 4M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 4M x 36 | (1) 4M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 36MB | (1) 1M x 36 | (1) 4M x 36 |  (1) 4M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 4M x  |  (1) 4M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 48MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 64MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |
          |      |             |             |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |      TAG      |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |     NONE      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |   Size   |   W64    |   W65    |   W66   |  W67   |  W68   |
          |----------+----------+----------+---------+--------+--------|
          |  128KB   |  2 & 3   |  1 & 2   |  1 & 2  | 1 & 2  | 2 & 3  |
          |----------+----------+----------+---------+--------+--------|
          |  256KB   |  2 & 3   |  2 & 3   |  2 & 3  | 2 & 3  | 2 & 3  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |   Speed    |   SW1/1   |   SW1/2   |   SW1/3   |   SW1/4   |
          |------------+-----------+-----------+-----------+-----------|
          |   50iMHz   |    On     |    On     |    On     |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |   66iMHz   |    Off    |    Off    |    Off    |    Off    |
          +------------------------------------------------------------+