DATAEXPERT CORPORATION
======================

   EXP3406

   Processor  80386DX/CX486DLC/80486SX/AMD80486DX/80486DX/80486DX2 
   Processor  25/33/40/50(internal)50/66(internal)MHz              
   Speed      
   Chip Set   OPTI                                                 
   Max.       64MB                                                 
   Onboard    
   DRAM       
   Cache      64/128/256KB                                         
   BIOS       AMI                                                  
   Dimensions 230mm x 218mm                                        
   I/O        32-bit VESA local bus slots (2)                      
   Options    
   NPU        CX487SLC/80387DX/CX487DLC                            
   Options    

<gopher://bitreich.org/I/th99/m/C-D/31975-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose       | Location | Purpose              | Location |
   |---------------+----------+----------------------+----------|
   | Power LED &   |    J1    | Turbo LED            |    J5    |
   | keylock       |          |                      |          |
   |---------------+----------+----------------------+----------|
   | Speaker       |    J2    | External battery     |    J6    |
   |---------------+----------+----------------------+----------|
   | Turbo switch  |    J3    | 32-bit VESA Local    |   SL1    |
   |               |          | bus slot             |          |
   |---------------+----------+----------------------+----------|
   | Reset switch  |    J4    | 32-bit VESA Local    |   SL2    |
   |               |          | bus slot             |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Jumper |   Position   |
   |------------------------------------+--------+--------------|
   |>> | Factory configured - do not    |  JP1   |     Open     |
   |   | alter                          |        |              |
   |---+--------------------------------+--------+--------------|
   |>> | 87DLC PQFP enabled             |  JP4   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | 87DLC PQFP disabled            |  JP4   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Factory configured - do not    |  JP12  |     Open     |
   |   | alter                          |        |              |
   |---+--------------------------------+--------+--------------|
   |>> | Factory configured - do not    |  JP13  |     Open     |
   |   | alter                          |        |              |
   |---+--------------------------------+--------+--------------|
   |>> | Monitor type select color      |  JP21  |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | Monitor type select monochrome |  JP21  |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Factory configured - do not    |  JP23  | Unidentified |
   |   | alter                          |        |              |
   |---+--------------------------------+--------+--------------|
   |>> | Battery type select - lithum   |  JP26  |  pins 1 & 2  |
   |   | discharge                      |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | Battery type select - NI-CAD   |  JP26  |  pins 2 & 3  |
   |   | recharge                       |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | New version 80486 DX50MHz      |  JP28  |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Old version 80486 DX50MHz      |  JP28  |     Open     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |    (4) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       4MB        |     (4) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       17MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (4) 16M x 9     |        NONE        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   | U18 (Tag)  | U19 (Tag)  |
   |-------+-------------+------------+------------+------------|
   | 64KB  | (4) 8K x 8  | (4) 8K x 8 | (1) 8K x 8 |    NONE    |
   |-------+-------------+------------+------------+------------|
   | 128KB | (4) 32K x 8 |    NONE    | (1) 8K x 8 |    NONE    |
   |-------+-------------+------------+------------+------------|
   | 256KB | (4) 32K x 8 | (4) 32K x  | (1) 8K x 8 | (1) 8K x 8 |
   |       |             |     8      |            |            |
   |-------+-------------+------------+------------+------------|
   | 256KB | (4) 32K x 8 | (4) 32K x  | (1) 32K x  |    NONE    |
   |       |             |     8      |     8      |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |      JP10       |      JP11      |  JP16  |  JP17  |
   |-------+-----------------+----------------+--------+--------|
   | 64KB  |   pins 2 & 3    |   pins 2 & 3   |  Open  |  Open  |
   |       |     closed      |     closed     |        |        |
   |-------+-----------------+----------------+--------+--------|
   | 128KB |   pins 1 & 2    |   pins 1 & 2   | Closed |  Open  |
   |       |     closed      |     closed     |        |        |
   |-------+-----------------+----------------+--------+--------|
   | 256KB |   pins 2 & 3    |   pins 2 & 3   | Closed | Closed |
   |       |     closed      |     closed     |        |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |     Type      |  JP14   |  JP15   |  JP20  | JP25  | JP27  |
   |---------------+---------+---------+--------+-------+-------|
   | 80386DX(PQFP) |  Open   |  Open   | 2 & 3  | 1 & 2 | 1 & 2 |
   |---------------+---------+---------+--------+-------+-------|
   | 80386DX(PGA)  |  Open   | Closed  | 2 & 3  | 1 & 2 | 1 & 2 |
   |---------------+---------+---------+--------+-------+-------|
   | CX486DLC(PGA) |  Open   | Closed  | 2 & 3  | 1 & 2 | 1 & 2 |
   |---------------+---------+---------+--------+-------+-------|
   |  80486(PQFP)  | Closed  |  Open   | 1 & 2  | 2 & 3 | 2 & 3 |
   |---------------+---------+---------+--------+-------+-------|
   |  80486(PGA)   | Closed  | Closed  | 1 & 2  | 2 & 3 | 2 & 3 |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          CPU TYPE CONFIGURATION (INTEL 80486 CPU)          |
   |------------------------------------------------------------|
   |     Type      |       JP2       |  JP18  |      JP19       |
   |---------------+-----------------+--------+-----------------|
   | 80486SX(PQFP) |      Open       | Closed |   pins 2 & 3    |
   |               |                 |        |     closed      |
   |---------------+-----------------+--------+-----------------|
   | 80486SX(PGA)  |      Open       |  Open  |   pins 2 & 3    |
   |               |                 |        |     closed      |
   |---------------+-----------------+--------+-----------------|
   |    80487SX    |   pins 2 & 3    | Closed |   pins 1 & 2    |
   |               |     closed      |        |     closed      |
   |---------------+-----------------+--------+-----------------|
   |  80486DX/DX2  |   pins 1 & 2    | Closed |   pins 1 & 2    |
   |               |     closed      |        |     closed      |
   |---------------+-----------------+--------+-----------------|
   |   Overdrive   |   pins 2 & 3    | Closed |   pins 1 & 2    |
   |               |     closed      |        |     closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |  CPU SPEED CONFIGURATION (INTEL 80386 &AMP; CX486DLC CPU)  |
   |------------------------------------------------------------|
   | CPU speed  |   JP6    |   JP7    |   JP8   |  JP9   | JP22 |
   |------------+----------+----------+---------+--------+------|
   |   33MHz    |  Closed  |  Closed  |  Open   | 2 & 3  | Open |
   |------------+----------+----------+---------+--------+------|
   |   40MHz    |  Closed  |  Closed  | Closed  | 2 & 3  | Open |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         CPU SPEED CONFIGURATION (INTEL 80486 CPU)          |
   |------------------------------------------------------------|
   | CPU speed  |  JP6   |   JP7    |   JP8   |  JP9   |  JP22  |
   |------------+--------+----------+---------+--------+--------|
   |   25MHz    |  Open  |   Open   |  Open   | 1 & 2  | Closed |
   |------------+--------+----------+---------+--------+--------|
   |   33MHz    |  Open  |   Open   | Closed  | 1 & 2  |  Open  |
   |------------+--------+----------+---------+--------+--------|
   |   40MHz    |  Open  |  Closed  | Closed  | 1 & 2  |  Open  |
   |------------+--------+----------+---------+--------+--------|
   |   50iMHz   |  Open  |   Open   |  Open   | 1 & 2  | Closed |
   |------------+--------+----------+---------+--------+--------|
   |   50MHz    |  Open  |  Closed  |  Open   | 1 & 2  |  Open  |
   |------------+--------+----------+---------+--------+--------|
   |   66iMHz   |  Open  |   Open   | Closed  | 1 & 2  |  Open  |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     VESA CONFIGURATION                     |
   |------------------------------------------------------------|
   |               Type               |          JP24           |
   |----------------------------------+-------------------------|
   |  Standard VESA VGA card in slot  |    pins 2 & 3 closed    |
   |               SL1                |                         |
   |----------------------------------+-------------------------|
   |         Other VESA card          |    pins 1 & 2 closed    |
   |------------------------------------------------------------|
   |      Note:Other VESA card includes Western Digital VGA31   |
   |      running at 50mhz, Tekram VESA cache IDE, or other     |
   |      special VESA card.                                    |
   +------------------------------------------------------------+