HEWLETT-PACKARD COMPANY
=======================

   HP VECTRA 486U PC Series

   Processor        80486SX/80487SX/80486DX/80486DX2              
   Processor Speed  25/33/50(internal)/66(internal)MHz            
   Chip Set         HP                                            
   Max. Onboard     64MB                                          
   DRAM             
   Cache            None                                          
   BIOS             HP                                            
   Dimensions       276mm x 325mm                                 
   I/O Options      Bus mouse port, floppy interface, IDE         
                    interface, serial ports (2), parallel port,   
                    VGA port                                      
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/E-H/30943-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | VGA port         |   CN1    | Parallel port     |   CN4    |
   |------------------+----------+-------------------+----------|
   | Serial port 2    |   CN2    | Bus mouse port    |   CN5    |
   |------------------+----------+-------------------+----------|
   | Serial port 1    |   CN3    |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Switch |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Factory configured - do not      | SW1/2  |    Off     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      | SW1/3  |    Off     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | VGA port enabled                 | SW1/4  |    Off     |
   |---+----------------------------------+--------+------------|
   |   | VGA port disabled                | SW1/4  |     On     |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     | SW1/1  |    Off     |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                | SW1/1  |     On     |
   |---+----------------------------------+--------+------------|
   |>> | Password check enabled           | SW1/2  |    Off     |
   |---+----------------------------------+--------+------------|
   |   | Password check disabled          | SW1/2  |     On     |
   |   | (password clear)                 |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Security mode disabled (CMOS     | SW1/3  |    Off     |
   |   | setup may be changed)            |        |            |
   |---+----------------------------------+--------+------------|
   |   | Security mode enabled (CMOS      | SW1/3  |     On     |
   |   | setup may not be changed)        |        |            |
   |---+----------------------------------+--------+------------|
   |>> | BIOS write protect enabled       |  SW4   | position 2 |
   |---+----------------------------------+--------+------------|
   |   | BIOS write protect disabled      |  SW4   | position 1 |
   |   | (BIOS may be upgraded from disk) |        |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (2) 512K x  |    NONE     |    NONE    |    NONE    |
   |      |     36      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (2) 512K x  | (2) 512K x  |    NONE    |    NONE    |
   |      |     36      |     36      |            |            |
   |------+-------------+-------------+------------+------------|
   | 12MB | (2) 512K x  | (2) 512K x  | (2) 512K x |    NONE    |
   |      |     36      |     36      |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 16MB | (2) 512K x  | (2) 512K x  | (2) 512K x | (2) 512K x |
   |      |     36      |     36      |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 16MB | (2) 2M x 36 |    NONE     |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 20MB | (2) 2M x 36 | (2) 512K x  |    NONE    |    NONE    |
   |      |             |     36      |            |            |
   |------+-------------+-------------+------------+------------|
   | 24MB | (2) 2M x 36 | (2) 512K x  | (2) 512K x |    NONE    |
   |      |             |     36      |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 28MB | (2) 2M x 36 | (2) 512K x  | (2) 512K x | (2) 512K x |
   |      |             |     36      |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 32MB | (2) 2M x 36 | (2) 2M x 36 |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 36MB | (2) 2M x 36 | (2) 2M x 36 | (2) 512K x |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 40MB | (2) 2M x 36 | (2) 2M x 36 | (2) 512K x | (2) 512K x |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 48MB | (2) 2M x 36 | (2) 2M x 36 |  (2) 2M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 52MB | (2) 2M x 36 | (2) 2M x 36 |  (2) 2M x  | (2) 512K x |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 64MB | (2) 2M x 36 | (2) 2M x 36 |  (2) 2M x  |  (2) 2M x  |
   |      |             |             |     36     |     36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |          Type          |   SW3/1   |   SW3/2   |   SW3/3   |
   |------------------------+-----------+-----------+-----------|
   |     80487SX-25MHz      |    Off    |    Off    |    Off    |
   |------------------------+-----------+-----------+-----------|
   |     ODP486SX-50MHz     |    Off    |    Off    |    Off    |
   |------------------------+-----------+-----------+-----------|
   |     ODP486SX-66MHz     |    Off    |    Off    |    On     |
   |------------------------+-----------+-----------+-----------|
   |     80486DX-33MHz      |    On     |    On     |    On     |
   |------------------------+-----------+-----------+-----------|
   |     80486DX2-50MHz     |    On     |    On     |    Off    |
   |------------------------+-----------+-----------+-----------|
   |     80486DX2-66MHz     |    On     |    On     |    On     |
   |------------------------------------------------------------|
   | Note:Install the 80487SX or ODP486SX processors in the     |
   | Upgrade CPU socket.                                        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     VRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |            Size            |            Bank 0             |
   |----------------------------+-------------------------------|
   |           512KB            |             NONE              |
   |----------------------------+-------------------------------|
   |           1024KB           |           (4) 44256           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 VRAM SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   |             Size              |           SW1/1            |
   |-------------------------------+----------------------------|
   |             512KB             |            Off             |
   |-------------------------------+----------------------------|
   |            1024KB             |             On             |
   +------------------------------------------------------------+