REPLY CORPORATION
=================

   POWERBOARD 25-286, PS/2 MODEL 25

   Processor    CX486DX2/80486DX2/80486DX4                        
   Processor    50(internal)/66(internal)/100(internal)MHz        
   Speed        
   Chip Set     Unidentified                                      
   Max. Onboard 32MB                                              
   DRAM         
   Cache        None                                              
   BIOS         Reply                                             
   Dimensions   330mm x 218mm                                     
   I/O Options  PS/2 mouse port, parallel port, serial port,      
                floppy drive interface, IDE interface, VGA        
                interface, riser slot                             
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/P-R/32951-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | VGA interface     |    J4    | PS/2 mouse port  |   J21    |
   |-------------------+----------+------------------+----------|
   | Drive power       |    J5    | Headphone        |   J23    |
   | connector         |          | connector        |          |
   |-------------------+----------+------------------+----------|
   | External battery  |    J6    | Parallel port    |   J24    |
   |-------------------+----------+------------------+----------|
   | IDE interface     |   J13    | Serial port      |   J25    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   J15    | Riser Card       |   SL1    |
   | interface         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | ST-506/412        |   J19    |                  |          |
   | interface         |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | VGA IRQ enabled                  |   J3   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | VGA IRQ disabled                 |   J3   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Floppy drive cable select type A |  J12   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Floppy drive cable select type B |  J12   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | IRQ5 enabled                     |  J17   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | IRQ5 disabled                    |  J17   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  J18   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  J18   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |   (1) 256K x 36    |        NONE        |
   |------------------+--------------------+--------------------|
   |       2MB        |   (1) 256K x 36    |   (1) 256K x 36    |
   |------------------+--------------------+--------------------|
   |       4MB        |    (1) 1M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       5MB        |    (1) 1M x 36     |   (1) 256K x 36    |
   |------------------+--------------------+--------------------|
   |       8MB        |    (1) 1M x 36     |    (1) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 4M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       17MB       |   (1) 256K x 36    |    (1) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       17MB       |    (1) 4M x 36     |   (1) 256K x 36    |
   |------------------+--------------------+--------------------|
   |       20MB       |    (1) 1M x 36     |    (1) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       20MB       |    (1) 4M x 36     |    (1) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 4M x 36     |    (1) 4M x 36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |        Type        |        J1         |        J2         |
   |--------------------+-------------------+-------------------|
   |      CX486DX2      |      Closed       |       Open        |
   |--------------------+-------------------+-------------------|
   |      80486DX2      |       Open        |      Closed       |
   |--------------------+-------------------+-------------------|
   |      80486DX4      |       Open        |      Closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |     Speed     |    SW1/1     |    SW1/2     |    SW1/3     |
   |---------------+--------------+--------------+--------------|
   |    50iMHz     |     Off      |     Off      |      On      |
   |---------------+--------------+--------------+--------------|
   |    66iMHz     |      On      |      On      |     Off      |
   |---------------+--------------+--------------+--------------|
   |    100iMHz    |      On      |      On      |     Off      |
   +------------------------------------------------------------+