QDI COMPUTER, INC.
==================

   P486

   Processor             80486SX/80487SX/80486DX                  
   Processor Speed       33MHz                                    
   Chip Set              OPTI                                     
   Max. Onboard DRAM     64MB                                     
   Cache                 64/256KB                                 
   BIOS                  AMI                                      
   Dimensions            330mm x 220mm                            
   I/O Options           None                                     
   NPU Options           4167                                     

<gopher://bitreich.org/I/th99/m/P-R/30799-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose             | Location | Purpose        | Location |
   |---------------------+----------+----------------+----------|
   | External battery    |   J11    | Turbo LED      |   JP11   |
   |---------------------+----------+----------------+----------|
   | Power LED & keylock |   J20    | Reset switch   |   SW1    |
   |---------------------+----------+----------------+----------|
   | Speaker             |   J21    | Turbo switch   |   SW2    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  JP1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JP1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select monochrome   |  JP2   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select color        |  JP2   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP6   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Oscillator type select double    |  JP7   | pins 2 & 3 |
   |   | frequency                        |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Oscillator type select single    |  JP7   | pins 1 & 2 |
   |   | frequency                        |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 1MB  | (4) 256K x  |    NONE     |    NONE    |    NONE    |
   |      |      9      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 2MB  | (4) 256K x  | (4) 256K x  |    NONE    |    NONE    |
   |      |      9      |      9      |            |            |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (4) 1M x 9  |    NONE     |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 5MB  | (4) 256K x  | (4) 1M x 9  |    NONE    |    NONE    |
   |      |      9      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (4) 1M x 9  | (4) 1M x 9  |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 12MB | (4) 1M x 9  | (4) 1M x 9  |  (1) 1M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 16MB | (4) 1M x 9  | (4) 1M x 9  |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 16MB | (4) 4M x 9  |    NONE     |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 20MB | (4) 4M x 9  | (4) 1M x 9  |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 24MB | (4) 1M x 9  | (4) 1M x 9  |  (1) 4M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 24MB | (4) 1M x 9  | (4) 4M x 9  |  (1) 1M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 28MB | (4) 1M x 9  | (4) 1M x 9  |  (1) 1M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 32MB | (4) 4M x 9  | (4) 4M x 9  |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 36MB | (4) 1M x 9  | (4) 4M x 9  |  (1) 4M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 36MB | (4) 4M x 9  | (4) 1M x 9  |  (1) 4M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 36MB | (4) 4M x 9  | (4) 4M x 9  |  (1) 1M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 40MB | (4) 1M x 9  | (4) 1M x 9  |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 40MB | (4) 4M x 9  | (4) 1M x 9  |  (1) 4M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 40MB | (4) 1M x 9  | (4) 4M x 9  |  (1) 4M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 40MB | (4) 4M x 9  | (4) 4M x 9  |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 52MB | (4) 1M x 9  | (4) 4M x 9  |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 52MB | (4) 4M x 9  | (4) 1M x 9  |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 52MB | (4) 4M x 9  | (4) 4M x 9  |  (1) 4M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 64MB | (4) 4M x 9  | (4) 4M x 9  |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |        TAG        |    Dirty Bit     |
   |-------+-------------+-------------------+------------------|
   | 64KB  | (8) 8K x 8  | (1) 8K x 8 at U34 |  (1) 64K x 1 at  |
   |       |             |                   |       U45        |
   |-------+-------------+-------------------+------------------|
   | 256KB | (8) 32K x 8 |  (1) 32K x 8 at   |  (1) 64K x 1 at  |
   |       |             |        U34        |       U45        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |   Size    |   JP8    |    JP9     |    JP10    |   JP12    |
   |-----------+----------+------------+------------+-----------|
   |   64KB    |   Open   |    Open    |    Open    |   Open    |
   |-----------+----------+------------+------------+-----------|
   |   256KB   |   Open   |   Closed   |   Closed   |  Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |   Type   |        JP3        |   jp4   |        JP5        |
   |----------+-------------------+---------+-------------------|
   | 80486SX  |       Open        |  Open   | pins 2 & 3 closed |
   |----------+-------------------+---------+-------------------|
   | 80487SX  | pins 1 & 2 closed | Closed  | pins 1 & 2 closed |
   |----------+-------------------+---------+-------------------|
   | 80486DX  | pins 2 & 3 closed | Closed  | pins 1 & 2 closed |
   +------------------------------------------------------------+