AMERICAN DIGICOM CORPORATION
============================

   DIGIS-3486HN

   Processor    CX486DLC/80386DX/80486SX/80487SX/80486DX/80486DX2 
   Processor    20/25/33/40/50(internal)/50/66(internal)MHz       
   Speed        
   Chip Set     OPTi                                              
   Max. Onboard 32MB                                              
   DRAM         
   Cache        64/128/256KB                                      
   BIOS         AMI                                               
   Dimensions   330mm x 218mm                                     
   I/O Options  None                                              
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/A-B/31678-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose             | Location | Purpose        | Location |
   |---------------------+----------+----------------+----------|
   | External battery    |    J2    | Turbo LED      |   J44    |
   |---------------------+----------+----------------+----------|
   | Power LED & keylock |   J42    | Reset switch   |   J45    |
   |---------------------+----------+----------------+----------|
   | Turbo switch        |   J43    | Speaker        |   SPKR   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Jumper |   Position   |
   |------------------------------------+--------+--------------|
   |>> | CMOS memory normal operation   |   J3   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | CMOS memory clear              |   J3   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Monitor type select color      |   J6   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Monitor type select monochrome |   J6   |     Open     |
   |---+--------------------------------+--------+--------------|
   |>> | Supports CYRIX CPU             |  JP25  |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Supports other CPU             |  JP26  |     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        |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |    Max     | Bank 0 | Bank 1 | TAG/U29  | TAG/U30  |
   |       |  Cachable  |        |        |          |          |
   |-------+------------+--------+--------+----------+----------|
   | 64KB  |    8MB     | (4) 8K | (4) 8K | (1) 8K x |   NONE   |
   |       |            |  x 8   |  x 8   |    8     |          |
   |-------+------------+--------+--------+----------+----------|
   | 128KB |    16MB    |  (4)   |  NONE  | (1) 8K x |   NONE   |
   |       |            | 32K x  |        |    8     |          |
   |       |            |   8    |        |          |          |
   |-------+------------+--------+--------+----------+----------|
   | 256KB |    32MB    |  (4)   |  (4)   | (1) 8K x | (1) 8K x |
   |       |            | 32K x  | 32K x  |    8     |    8     |
   |       |            |   8    |   8    |          |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |  Size   |   J34    |        J36        |   J37   |   J38   |
   |---------+----------+-------------------+---------+---------|
   |  64KB   |   Open   | pins 2 & 3 closed |  Open   |  Open   |
   |---------+----------+-------------------+---------+---------|
   |  128KB  |  Closed  | pins 1 & 2 closed | Closed  | Closed  |
   |---------+----------+-------------------+---------+---------|
   |  256KB  |  Closed  | pins 2 & 3 closed | Closed  | Closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |  Speed  |  J30   |  J32   |        J39        |    J40     |
   |---------+--------+--------+-------------------+------------|
   |  20MHz  | Closed | Closed | pins 1 & 2 closed | pins 1 & 2 |
   |         |        |        |                   |   closed   |
   |---------+--------+--------+-------------------+------------|
   |  25MHz  |  Open  |  Open  | pins 1 & 2 closed | pins 1 & 2 |
   |         |        |        |                   |   closed   |
   |---------+--------+--------+-------------------+------------|
   |  33MHz  |  Open  | Closed | pins 1 & 2 closed | pins 1 & 2 |
   |         |        |        |                   |   closed   |
   |---------+--------+--------+-------------------+------------|
   |  40MHz  | Closed | Closed | pins 1 & 2 closed | pins 2 & 3 |
   |         |        |        |                   |   closed   |
   |---------+--------+--------+-------------------+------------|
   | 50i MHz |  Open  |  Open  | pins 1 & 2 closed | pins 1 & 2 |
   |         |        |        |                   |   closed   |
   |---------+--------+--------+-------------------+------------|
   |  50MHz  |  Open  |  Open  | pins 2 & 3 closed | pins 2 & 3 |
   |         |        |        |                   |   closed   |
   |---------+--------+--------+-------------------+------------|
   | 66i MHz |  Open  | Closed | pins 2 & 3 closed | pins 2 & 3 |
   |         |        |        |                   |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |    Type     | J23  | J24  | J27  | J28  | J29 | J31  | J41 |
   |-------------+------+------+------+------+-----+------+-----|
   |  CX486DLC   |1 & 2 |Closed| N/A  | N/A  | N/A | Open | N/A |
   |-------------+------+------+------+------+-----+------+-----|
   | 80386DX PGA |1 & 2 |Closed| N/A  | N/A  | N/A | Open | N/A |
   |-------------+------+------+------+------+-----+------+-----|
   |80386DX PQFP |1 & 2 | Open | N/A  | N/A  | N/A | Open | N/A |
   |-------------+------+------+------+------+-----+------+-----|
   | 80486SX PGA |2 & 3 | N/A  |Closed| Open |2 & 3|Closed|Open |
   |-------------+------+------+------+------+-----+------+-----|
   |80486SX PQFP |2 & 3 | N/A  | Open |Closed|2 & 3|Closed|Open |
   |-------------+------+------+------+------+-----+------+-----|
   |   80487SX   |2 & 3 | N/A  |Closed| Open |2 & 3|Closed|2 & 3|
   |-------------+------+------+------+------+-----+------+-----|
   |   80486DX   |2 & 3 | N/A  |Closed|Closed|1 & 2|Closed|1 & 2|
   |-------------+------+------+------+------+-----+------+-----|
   |  80486DX2   |2 & 3 | N/A  |Closed|Closed|1 & 2|Closed|1 & 2|
   |------------------------------------------------------------|
   |Note:Pins designated should be in the closed position.      |
   +------------------------------------------------------------+