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       # WYSE TECHNOLOGY, INC.
       
          WYSESYSTEM 386 MODEL 3225
       
          Processor       80386DX                                        
          Processor Speed 25MHz                                          
          Chip Set        WYSE                                           
          Max. Onboard    16MB                                           
          DRAM            
          Cache           64KB                                           
          BIOS            WYSE                                           
          Dimensions      334mm x 122mm                                  
          I/O Options     Proprietary top plane local bus connector,     
                          serial ports (2)                               
          NPU Options     80387/3167                                     
       
   IMG IMG 1
          
       
   IMG IMG 2
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose            | Location | Purpose         | Location |
          |--------------------+----------+-----------------+----------|
          | External battery   |    C1    | Serial port two |    J5    |
          |--------------------+----------+-----------------+----------|
          | Front panel        |    C2    | Card edge       |    S1    |
          | connector          |          | connector       |          |
          |--------------------+----------+-----------------+----------|
          | Power good/Speaker |    C3    | Top plane local |    S2    |
          |                    |          | bus connector   |          |
          |--------------------+----------+-----------------+----------|
          | Serial port one    |    C4    |                 |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Factory configured - do not      |   WA   |   Closed   |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   WB   |   Closed   |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Parity check enabled             |   WE   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Parity check disabled            |   WE   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Factory test disabled            |   WF   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Factory test enabled             |   WF   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select color        |   WG   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |   WG   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   WH   |   Closed   |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   WI   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | NPU disabled                     |   WJ   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | NPU enabled                      |   WJ   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   WK   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Hidden refresh enabled           |   WL   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Hidden refresh disabled          |   WL   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   WM   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   WN   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   WV   |   Closed   |
          |   | alter                            |        |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               KEYBOARD SCANNER CONFIGURATION               |
          |------------------------------------------------------------|
          |     Setting      |  WP  |  WQ  |  WR  |  WS  |  WT  |  WU  |
          |------------------+------+------+------+------+------+------|
          | 1 chip installed |Closed|Closed|Closed|Closed|Closed|Closed|
          |      at 6D       |      |      |      |      |      |      |
          |------------------+------+------+------+------+------+------|
          |2 chips installed | Open | Open | Open | Open | Open | Open |
          |   at 6A and 6D   |      |      |      |      |      |      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     BIOS CONFIGURATION                     |
          |------------------------------------------------------------|
          |   Jumper   |          WC           |          WD           |
          |------------+-----------------------+-----------------------|
          |   27128    |   pins 2 & 3 closed   |   pins 2 & 3 closed   |
          |------------+-----------------------+-----------------------|
          |   27256    |   pins 1 & 2 closed   |   pins 2 & 3 closed   |
          |------------+-----------------------+-----------------------|
          |   27512    |   pins 1 & 2 closed   |   pins 1 & 2 closed   |
          +------------------------------------------------------------+
       
   IMG IMG 3
          
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |  Size  |   Bank 0   |   Bank 1   |   Bank 2   |   Bank 3   |
          |--------+------------+------------+------------+------------|
          |  4MB   | (4) 1M x 9 |    NONE    |    NONE    |    NONE    |
          |--------+------------+------------+------------+------------|
          |  8MB   | (4) 1M x 9 | (4) 1M x 9 |    NONE    |    NONE    |
          |--------+------------+------------+------------+------------|
          |  12MB  | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |    NONE    |
          |--------+------------+------------+------------+------------|
          |  16MB  | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM SWITCH CONFIGURATION                  |
          |------------------------------------------------------------|
          |  Size   |  SW1/3   |  SW1/4  |  SW1/5  |  SW1/6  |  SW2/1  |
          |---------+----------+---------+---------+---------+---------|
          |   4MB   |    On    |   Off   |   Off   |   Off   |   Off   |
          |---------+----------+---------+---------+---------+---------|
          |   8MB   |   Off    |   On    |   Off   |   Off   |   On    |
          |---------+----------+---------+---------+---------+---------|
          |  12MB   |    On    |   On    |   Off   |   Off   |   On    |
          |---------+----------+---------+---------+---------+---------|
          |  16MB   |   Off    |   Off   |   On    |   Off   |   On    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             DRAM SWITCH CONFIGURATION (CON'T)              |
          |------------------------------------------------------------|
          |  Size   |  SW2/2   |  SW2/3  |  SW2/4  |  SW2/5  |  SW2/6  |
          |---------+----------+---------+---------+---------+---------|
          |   4MB   |   Off    |   Off   |   Off   |   Off   |   Off   |
          |---------+----------+---------+---------+---------+---------|
          |   8MB   |   Off    |   Off   |   Off   |   Off   |   Off   |
          |---------+----------+---------+---------+---------+---------|
          |  12MB   |   Off    |   On    |   Off   |   Off   |   Off   |
          |---------+----------+---------+---------+---------+---------|
          |  16MB   |   Off    |   On    |   Off   |   On    |   Off   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DRAM SPLIT CONFIGURATION                  |
          |------------------------------------------------------------|
          |      Memory Split      |      SW1/1      |      SW1/2      |
          |------------------------+-----------------+-----------------|
          | » |    640KB/384KB     |       On        |       On        |
          |---+--------------------+-----------------+-----------------|
          |   |    512KB/512KB     |       Off       |       On        |
          |---+--------------------+-----------------+-----------------|
          |   |    256KB/786KB     |       On        |       Off       |
          +------------------------------------------------------------+