DTK COMPUTER, INC.
==================

   RAM WINDOW EMS CARD

   Card Type          Memory card                                 
   Chipset Controller N/A                                         
   I/O Options        Memory                                      
   Maximum DRAM       2MB                                         

<gopher://bitreich.org/I/th99/i/C-D/51589-1.png>
   

   +------------------------------------------------------------+
   |               MAINBOARD MEMORY CONFIGURATION               |
   |------------------------------------------------------------|
   |    Memory     |    SW1/2     |    SW1/3     |    SW1/4     |
   |---------------+--------------+--------------+--------------|
   |     256KB     |     Off      |      On      |      On      |
   |---------------+--------------+--------------+--------------|
   |     320KB     |     Off      |      On      |     Off      |
   |---------------+--------------+--------------+--------------|
   |     384KB     |     Off      |     Off      |      On      |
   |---------------+--------------+--------------+--------------|
   |     448KB     |     Off      |     Off      |     Off      |
   |---------------+--------------+--------------+--------------|
   |     512KB     |      On      |      On      |      On      |
   |---------------+--------------+--------------+--------------|
   |     576KB     |      On      |      On      |     Off      |
   |---------------+--------------+--------------+--------------|
   |     640KB     |      On      |     Off      |      On      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                DRAM CHIP SIZE CONFIGURATION                |
   |------------------------------------------------------------|
   |             Size             |            SW1/1            |
   |------------------------------+-----------------------------|
   |             64KB             |             Off             |
   |------------------------------+-----------------------------|
   |            256KB             |             On              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |  Address   |   SW1/5   |   SW1/6   |   SW1/7   |   SW1/8   |
   |------------+-----------+-----------+-----------+-----------|
   |    208h    |    On     |    On     |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    218h    |    On     |    On     |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    258h    |    On     |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    268h    |    On     |    Off    |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    2A8h    |    Off    |    On     |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    2B8h    |    Off    |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    2E8h    |    Off    |    Off    |    Off    |    On     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |  Size  |   Bank 0   |   Bank 1   |   Bank 2   |   Bank 3   |
   |--------+------------+------------+------------+------------|
   |  64KB  | (9) 64K x  |    NONE    |    NONE    |    NONE    |
   |        |     1      |            |            |            |
   |--------+------------+------------+------------+------------|
   | 128KB  | (9) 64K x  | (9) 64K x  |    NONE    |    NONE    |
   |        |     1      |     1      |            |            |
   |--------+------------+------------+------------+------------|
   | 192KB  | (9) 64K x  | (9) 64K x  | (9) 64K x  |    NONE    |
   |        |     1      |     1      |     1      |            |
   |--------+------------+------------+------------+------------|
   | 256KB  | (9) 64K x  | (9) 64K x  | (9) 64K x  | (9) 64K x  |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 256KB  | (9) 256K x |    NONE    |    NONE    |    NONE    |
   |        |     1      |            |            |            |
   |--------+------------+------------+------------+------------|
   | 320KB  | (9) 64K x  | (9) 64K x  | (9) 64K x  | (9) 64K x  |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 384KB  | (9) 64K x  | (9) 64K x  | (9) 64K x  | (9) 64K x  |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 448KB  | (9) 64K x  | (9) 64K x  | (9) 64K x  | (9) 64K x  |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 512KB  | (9) 64K x  | (9) 64K x  | (9) 64K x  | (9) 64K x  |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 512KB  | (9) 256K x | (9) 256K x |    NONE    |    NONE    |
   |        |     1      |     1      |            |            |
   |--------+------------+------------+------------+------------|
   | 768KB  | (9) 256K x | (9) 256K x | (9) 256K x |    NONE    |
   |        |     1      |     1      |     1      |            |
   |--------+------------+------------+------------+------------|
   |  1MB   | (9) 256K x | (9) 256K x | (9) 256K x | (9) 256K x |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 1.25MB | (9) 256K x | (9) 256K x | (9) 256K x | (9) 256K x |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 1.5MB  | (9) 256K x | (9) 256K x | (9) 256K x | (9) 256K x |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 1.75MB | (9) 256K x | (9) 256K x | (9) 256K x | (9) 256K x |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   |  2MB   | (9) 256K x | (9) 256K x | (9) 256K x | (9) 256K x |
   |        |     1      |     1      |     1      |     1      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   |  Size  |   Bank 4   |   Bank 5   |   Bank 6   |   Bank 7   |
   |--------+------------+------------+------------+------------|
   |  64KB  |    NONE    |    NONE    |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   | 128KB  |    NONE    |    NONE    |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   | 192KB  |    NONE    |    NONE    |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   | 256KB  |    NONE    |    NONE    |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   | 256KB  |    NONE    |    NONE    |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   | 320KB  | (9) 64K x  |    NONE    |    NONE    |    NONE    |
   |        |     1      |            |            |            |
   |--------+------------+------------+------------+------------|
   | 384KB  | (9) 64K x  | (9) 64K x  |    NONE    |    NONE    |
   |        |     1      |     1      |            |            |
   |--------+------------+------------+------------+------------|
   | 448KB  | (9) 64K x  | (9) 64K x  | (9) 64K x  |    NONE    |
   |        |     1      |     1      |     1      |            |
   |--------+------------+------------+------------+------------|
   | 512KB  | (9) 64K x  | (9) 64K x  | (9) 64K x  | (9) 64K x  |
   |        |     1      |     1      |     1      |     1      |
   |--------+------------+------------+------------+------------|
   | 512KB  |    NONE    |    NONE    |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   | 768KB  |    NONE    |    NONE    |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   |  1MB   |    NONE    |    NONE    |    NONE    |    NONE    |
   |--------+------------+------------+------------+------------|
   | 1.25MB | (9) 256K x |    NONE    |    NONE    |    NONE    |
   |        |     1      |            |            |            |
   |--------+------------+------------+------------+------------|
   | 1.5MB  | (9) 256K x | (9) 256K x |    NONE    |    NONE    |
   |        |     1      |     1      |            |            |
   |--------+------------+------------+------------+------------|
   | 1.75MB | (9) 256K x | (9) 256K x | (9) 256K x |    NONE    |
   |        |     1      |     1      |     1      |            |
   |--------+------------+------------+------------+------------|
   |  2MB   | (9) 256K x | (9) 256K x | (9) 256K x | (9) 256K x |
   |        |     1      |     1      |     1      |     1      |
   +------------------------------------------------------------+