OCEAN INFORMATION SYSTEMS, INC.
===============================

   DRAGON EISA 486

   Processor             80486DX                                  
   Processor Speed       50MHz                                    
   Chip Set              OPTI                                     
   Max. onboard DRAM     128MB                                    
   SRAM Cache            64/128/256/512KB                         
   BIOS                  AMI                                      
   Dimensions            330mm x 215mm                            
   I/O Options           None                                     
   NPU Options           4167                                     

<gopher://bitreich.org/I/th99/m/M-O/31501-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose      | Location  | Purpose              | Location |
   |--------------+-----------+----------------------+----------|
   | Speaker      |    J4     | Reset switch         |    S9    |
   |--------------+-----------+----------------------+----------|
   | Power LED &  |    J5     | CPU heatsink fan     |   JP22   |
   | keylock      |           | (+5VDC)              |          |
   |------------------------------------------------------------|
   | Note:The location of JP22 is unknown and may be labeled    |
   | JP17 on the board.                                         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function             | Jumper |    Position    |
   |----------------------------------+--------+----------------|
   |>> | Factory configured - do not  |  JP1   |     Closed     |
   |   | alter                        |        |                |
   |---+------------------------------+--------+----------------|
   |>> | Factory configured - do not  |  JP2   |     Closed     |
   |   | alter                        |        |                |
   |---+------------------------------+--------+----------------|
   |>> | Factory configured - do not  |  JP3   |   pins 1 & 2   |
   |   | alter                        |        |     closed     |
   |---+------------------------------+--------+----------------|
   |>> | Monitor type select color    |  JP4   |     Closed     |
   |---+------------------------------+--------+----------------|
   |   | Monitor type select          |  JP4   |      Open      |
   |   | monochrome                   |        |                |
   |---+------------------------------+--------+----------------|
   |>> | Factory configured - do not  |  JP6   |      Open      |
   |   | alter                        |        |                |
   |---+------------------------------+--------+----------------|
   |>> | Factory configured - do not  |  JP7   | pins 1 & 2 and |
   |   | alter                        |        |  3 & 4 closed  |
   |---+------------------------------+--------+----------------|
   |>> | Factory configured - do not  |  JP8   |   pins 1 & 2   |
   |   | alter                        |        |     closed     |
   |---+------------------------------+--------+----------------|
   |>> | Factory configured - do not  |  JP9   |   pins 2 & 3   |
   |   | alter                        |        |     closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size    |         Bank 0         |        Bank 1         |
   |-----------+------------------------+-----------------------|
   |    4MB    |       (4) 1M x 9       |         NONE          |
   |-----------+------------------------+-----------------------|
   |    8MB    |       (4) 1M x 9       |      (4) 1M x 9       |
   |-----------+------------------------+-----------------------|
   |   16MB    |       (4) 4M x 9       |         NONE          |
   |-----------+------------------------+-----------------------|
   |   20MB    |       (4) 1M x 9       |      (4) 4M x 9       |
   |-----------+------------------------+-----------------------|
   |   32MB    |       (4) 4M x 9       |      (4) 4M x 9       |
   |-----------+------------------------+-----------------------|
   |   64MB    |      (4) 16M x 9       |         NONE          |
   |-----------+------------------------+-----------------------|
   |   128MB   |      (4) 16M x 9       |      (4) 16M x 9      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     SRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  | Bank 0 | Bank 1 | Dirty  |  TAG   |  TAG  |  TAG   |
   |       |        |        | (U49)  | (U50)  | (U51) | (U64)  |
   |-------+--------+--------+--------+--------+-------+--------|
   | 64KB  | (4) 8K | (4) 8K |  (1)   | (1) 8K | None  |  (1)   |
   |       |  x 8   |  x 8   | 16K x  |  x 8   |       | 16K x  |
   |       |        |        |   1    |        |       |  1 or  |
   |       |        |        |        |        |       | 64K x  |
   |       |        |        |        |        |       |   1    |
   |-------+--------+--------+--------+--------+-------+--------|
   | 128KB |  (4)   |  NONE  |  (1)   | (1) 8K | None  |  (1)   |
   |       | 32K x  |        | 16K x  |  x 8   |       | 16K x  |
   |       |   8    |        |   1    |        |       |  1 or  |
   |       |        |        |        |        |       | 64K x  |
   |       |        |        |        |        |       |   1    |
   |-------+--------+--------+--------+--------+-------+--------|
   | 256KB |  (4)   |  (4)   |  (1)   | (1) 8K |  (1)  |  (1)   |
   |       | 32K x  | 32K x  | 16K x  |  x 8   | 8K x  | 16K x  |
   |       |   8    |   8    |   1    |        |   8   |  1 or  |
   |       |        |        |        |        |       | 64K x  |
   |       |        |        |        |        |       |   1    |
   |-------+--------+--------+--------+--------+-------+--------|
   | 512KB |  (4)   |  NONE  |  (1)   |  (1)   | None  |  (1)   |
   |       | 128K x |        | 16K x  | 32K x  |       | 64K x  |
   |       |   8    |        |   1    |   8    |       |   1    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   | Jumper |    64KB    |   128KB    |   256KB    |   512KB    |
   |--------+------------+------------+------------+------------|
   |  JP5   | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 |
   |        |   closed   |   closed   |   closed   |   closed   |
   |--------+------------+------------+------------+------------|
   |  JP10  |    Open    |    Open    |    Open    |   Closed   |
   |--------+------------+------------+------------+------------|
   |  JP11  |    Open    |    Open    |   Closed   |   Closed   |
   |--------+------------+------------+------------+------------|
   |  JP12  |    Open    |   Closed   |   Closed   |   Closed   |
   |--------+------------+------------+------------+------------|
   |  JP13  |    Open    |    Open    |   Closed   |   Closed   |
   |--------+------------+------------+------------+------------|
   |  JP14  |    Open    |   Closed   |   Closed   |   Closed   |
   |--------+------------+------------+------------+------------|
   |  JP15  |    Open    |    Open    |    Open    |   Closed   |
   +------------------------------------------------------------+