(TXT) View Source
       
       # FORCOM TECHNOLOGY CORPORATION
       
          B730/B731/B733
       
                                                                         
          Processor             80486SX/80487SX/80486DX                  
          Processor Speed       20/25/33MHz                              
          Chip Set              OPTI                                     
          Max. Onboard DRAM     32MB                                     
          Cache                 64/256KB                                 
          BIOS                  AMI                                      
          Dimensions            328mm x 227mm                            
          I/O Options           None                                     
          NPU Options           4167                                     
                                                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | External battery    |    J1    | Speaker        |    J5    |
          |---------------------+----------+----------------+----------|
          | Turbo LED           |    J3    | Reset switch   |    J6    |
          |---------------------+----------+----------------+----------|
          | Power LED & Keylock |    J4    | Turbo switch   |    J7    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Jumper |   Position   |
          |------------------------------------+--------+--------------|
          | » | Monitor type select monochrome |   J2   |     Open     |
          |---+--------------------------------+--------+--------------|
          |   | Monitor type select color      |   J2   |    Closed    |
          |---+--------------------------------+--------+--------------|
          | » | CPU speed select iOSC          |  J11   |  pins 2 & 3  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          |   | CPU speed select iOSC/2        |  J11   |  pins 1 & 2  |
          |   |                                |        |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |  Size  |     Bank 0      |  Bank 1   |  Bank 2  |  Bank 3  |
          |--------+-----------------+-----------+----------+----------|
          |  1MB   |  (4) 256K x 9   |   NONE    |   NONE   |   NONE   |
          |--------+-----------------+-----------+----------+----------|
          |  2MB   |  (4) 256K x 9   | (4) 256K  |   NONE   |   NONE   |
          |        |                 |    x 9    |          |          |
          |--------+-----------------+-----------+----------+----------|
          |  4MB   |   (4) 1M x 9    |   NONE    |   NONE   |   NONE   |
          |--------+-----------------+-----------+----------+----------|
          |  5MB   |  (4) 256K x 9   | (4) 1M x  |   NONE   |   NONE   |
          |        |                 |     9     |          |          |
          |--------+-----------------+-----------+----------+----------|
          |  6MB   |  (4) 256K x 9   | (4) 256K  | (4) 1M x |   NONE   |
          |        |                 |    x 9    |    9     |          |
          |--------+-----------------+-----------+----------+----------|
          |  8MB   |   (4) 1M x 9    | (4) 1M x  |   NONE   |   NONE   |
          |        |                 |     9     |          |          |
          |--------+-----------------+-----------+----------+----------|
          |  9MB   |  (4) 256K x 9   | (4) 1M x  | (4) 1M x |   NONE   |
          |        |                 |     9     |    9     |          |
          |--------+-----------------+-----------+----------+----------|
          |  10MB  |  (4) 256K x 9   | (4) 256K  | (4) 1M x | (4) 1M x |
          |        |                 |    x 9    |    9     |    9     |
          |--------+-----------------+-----------+----------+----------|
          |  12MB  |   (4) 1M x 9    | (4) 1M x  | (4) 1M x |   NONE   |
          |        |                 |     9     |    9     |          |
          |--------+-----------------+-----------+----------+----------|
          |  13MB  |  (4) 256K x 9   | (4) 1M x  | (4) 1M x | (4) 1M x |
          |        |                 |     9     |    9     |    9     |
          |--------+-----------------+-----------+----------+----------|
          |  16MB  |   (4) 1M x 9    | (4) 1M x  | (4) 1M x | (4) 1M x |
          |        |                 |     9     |    9     |    9     |
          |--------+-----------------+-----------+----------+----------|
          |  16MB  |   (4) 4M x 9    |   NONE    |   NONE   |   NONE   |
          |--------+-----------------+-----------+----------+----------|
          |  20MB  |   (4) 1M x 9    | (4) 4M x  |   NONE   |   NONE   |
          |        |                 |     9     |          |          |
          |--------+-----------------+-----------+----------+----------|
          |  24MB  |   (4) 1M x 9    | (4) 1M x  | (4) 4M x |   NONE   |
          |        |                 |     9     |    9     |          |
          |--------+-----------------+-----------+----------+----------|
          |  28MB  |   (4) 1M x 9    | (4) 1M x  | (4) 1M x | (4) 4M x |
          |        |                 |     9     |    9     |    9     |
          |--------+-----------------+-----------+----------+----------|
          |  32MB  |   (4) 4M x 9    | (4) 4M x  |   NONE   |   NONE   |
          |        |                 |     9     |          |          |
          |--------+-----------------+-----------+----------+----------|
          |  36MB  |   (4) 4M x 9    | (4) 4M x  | (4) 1M x |   NONE   |
          |        |                 |     9     |    9     |          |
          |--------+-----------------+-----------+----------+----------|
          |  40MB  |   (4) 4M x 9    | (4) 4M x  | (4) 1M x | (4) 1M x |
          |        |                 |     9     |    9     |    9     |
          |--------+-----------------+-----------+----------+----------|
          |  48MB  |   (4) 4M x 9    | (4) 4M x  | (4) 4M x |   NONE   |
          |        |                 |     9     |    9     |          |
          |--------+-----------------+-----------+----------+----------|
          |  52MB  |   (4) 4M x 9    | (4) 4M x  | (4) 4M x | (4) 1M x |
          |        |                 |     9     |    9     |    9     |
          |--------+-----------------+-----------+----------+----------|
          |  64MB  |   (4) 4M x 9    | (4) 4M x  | (4) 4M x | (4) 4M x |
          |        |                 |     9     |    9     |    9     |
          |------------------------------------------------------------|
          | Note:Banks 2 & 3 are optional SIMM sockets and must be     |
          | added to the mainboard by the user.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |   Tag (U41)   |   Tag (U42)   |
          |------------+---------------+---------------+---------------|
          |    64KB    |  (8) 8K x 8   |  (1) 16K x 4  |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (8) 32K x 8  |  (1) 16K x 4  |  (1) 32K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |     Size     |      J13      |     J14      |     J15      |
          |--------------+---------------+--------------+--------------|
          |     64KB     |     Open      |     Open     |     Open     |
          |--------------+---------------+--------------+--------------|
          |    256KB     |    Closed     |    Closed    |    Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |   Type   |        J9         |   J10   |        J16        |
          |----------+-------------------+---------+-------------------|
          | 80486SX  | pins 2 & 3 closed |  Open   |       Open        |
          |----------+-------------------+---------+-------------------|
          | 80487SX  | pins 1 & 2 closed | Closed  | pins 1 & 2 closed |
          |----------+-------------------+---------+-------------------|
          | 80486DX  | pins 1 & 2 closed | Closed  | pins 2 & 3 closed |
          +------------------------------------------------------------+