DELL COMPUTER CORPORATION
=========================

   SYSTEM 486/L

   Processor    80486SX/80487SX/80486DX/80486DX2                  
   Processor    25/33/50(internal)/66(internal)MHz                
   Speed        
   Chip Set     LSI                                               
   Max. Onboard 64MB (on external card)                           
   DRAM         
   Cache        128KB                                             
   BIOS         Phoenix                                           
   Dimensions   330mm x 218mm                                     
   I/O Options  External cache card, floppy drive interface, IDE  
                interface, parallel port, PS/2 mouse port, serial 
                ports (2), VGA feature connector, VGA port        
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/C-D/32149-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         | Location | Purpose            | Location |
   |-----------------+----------+--------------------+----------|
   | PS/2 mouse port |   CN1    | Floppy drive       |   CN7    |
   |                 |          | interface          |          |
   |-----------------+----------+--------------------+----------|
   | Serial port 1   |   CN2    | Video memory       |   CN8    |
   |                 |          | upgrade connector  |          |
   |-----------------+----------+--------------------+----------|
   | Serial port 2   |   CN3    | VGA feature        |   CN9    |
   |                 |          | connector          |          |
   |-----------------+----------+--------------------+----------|
   | Parallel port   |   CN4    | IDE interface LED  |   J11    |
   |-----------------+----------+--------------------+----------|
   | VGA port        |   CN5    | External cache     |   SL1    |
   |                 |          | card               |          |
   |-----------------+----------+--------------------+----------|
   | IDE interface   |   CN6    |                    |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Jumper  | Position |
   |---------------------------------------+---------+----------|
   |>> | Password enabled                  |   J1    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |   | Password disabled                 |   J1    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | Factory configured - do not alter |   J2    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | Flash BIOS write protect enabled  |   J3    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |   | Flash BIOS write protect disabled |   J3    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | On board VGA enabled              |   J4    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |   | On board VGA disabled             |   J4    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | External cache card not installed |   J5    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |   | External cache card installed     |   J5    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | Factory configured - do not alter |   J6    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | Factory configured - do not alter |   J9    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | Factory configured - do not alter |   J10   |   Open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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) 4M x 36 | (1) 1M x 36 |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 24MB | (1) 4M x 36 | (1) 1M x 36 |  (1) 1M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 28MB | (1) 4M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 4M x 36 | (1) 4M x 36 |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 36MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 1M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 40MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 48MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 52MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 64MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |       Speed        |        J7         |        J8         |
   |--------------------+-------------------+-------------------|
   |       25MHz        |       Open        |      Closed       |
   |--------------------+-------------------+-------------------|
   |       33MHz        |      Closed       |       Open        |
   |--------------------+-------------------+-------------------|
   |       50iMHz       |       Open        |      Closed       |
   |--------------------+-------------------+-------------------|
   |       66iMHz       |      Closed       |       Open        |
   +------------------------------------------------------------+