(TXT) View Source
       
       # EFA CORPORATION
       
          ECA 34M33
       
          Processor             80386DX/80486SX/80486DX                  
          Processor Speed       16/20/25/33/40/50MHz                     
          Chip Set              UMC                                      
          Max. Onboard DRAM     32MB                                     
          Cache                 64/128/256KB                             
          BIOS                  AMI                                      
          Dimensions            330mm x 218mm                            
          I/O Options           None                                     
          NPU Options           4167                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Power LED &       |    J1    | Turbo LED        |    J4    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Speaker           |    J2    | Turbo switch     |    J5    |
          |-------------------+----------+------------------+----------|
          | Reset switch      |    J3    | External battery |   J17    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | Monitor type select color |      J16      |    Open    |
          |---+---------------------------+---------------+------------|
          |   | Monitor type select       |      J16      |   Closed   |
          |   | monochrome                |               |            |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |      J21      |    N/A     |
          |   | not alter                 |               |            |
          |---+---------------------------+---------------+------------|
          | » | BIOS type select 27512    |      J22      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | BIOS type select 271024   |      J22      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | CPU type select 80486DX   |      J23      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | CPU type select 80486SX   |      J23      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | CPU type select 80386DX   |      J23      |    Open    |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |     S2/5      |    N/A     |
          |   | not alter                 |               |            |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |     S2/8      |    N/A     |
          |   | not alter                 |               |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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) 1M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   | TAG (U22)  | TAG (U24)  |
          |-------+-------------+------------+------------+------------|
          | 64KB  | (4) 8K x 8  | (4) 8K x 8 | (1) 32K x  | (1) 16K x  |
          |       |             |            |     8      |     4      |
          |-------+-------------+------------+------------+------------|
          | 128KB | (4) 32K x 8 |    NONE    | (1) 32K x  | (1) 16K x  |
          |       |             |            |     8      |     4      |
          |-------+-------------+------------+------------+------------|
          | 256KB | (4) 32K x 8 | (4) 32K x  | (1) 32K x  | (1) 16K x  |
          |       |             |     8      |     8      |     4      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |Size | J7 |J8 |  J9  | J10  | J11  | J12  | J13  |J14 | J15 |
          |-----+----+---+------+------+------+------+------+----+-----|
          |64KB |2 & |2 &| Open | Open | Open | Open |Closed|1 & |Open |
          |     | 3  | 3 |      |      |      |      |      | 2  |     |
          |-----+----+---+------+------+------+------+------+----+-----|
          |128KB|1 & |2 &| Open |Closed| Open |Closed|Closed|2 & |1 & 2|
          |     | 2  | 3 |      |      |      |      |      | 3  |     |
          |-----+----+---+------+------+------+------+------+----+-----|
          |256KB|1 & |1 &|Closed|Closed|Closed|Closed|Closed|1 & |2 & 3|
          |     | 2  | 2 |      |      |      |      |      | 2  |     |
          |------------------------------------------------------------|
          |Note:Pins designated should be in the closed position.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU TYPE CONFIGURATION (A)                 |
          |------------------------------------------------------------|
          |       Type       |   S3/1   |   S3/2   |  S3/3   |  S3/4   |
          |------------------+----------+----------+---------+---------|
          |    80386DX-16    |   Off    |   Off    |   On    |   On    |
          |------------------+----------+----------+---------+---------|
          |    80386DX-20    |   Off    |   Off    |   On    |   Off   |
          |------------------+----------+----------+---------+---------|
          |    80386DX-33    |    On    |    On    |   Off   |   On    |
          |------------------+----------+----------+---------+---------|
          |    80386DX-40    |    On    |    On    |   On    |   On    |
          |------------------+----------+----------+---------+---------|
          |    80486SX-20    |    On    |   Off    |   On    |   Off   |
          |------------------+----------+----------+---------+---------|
          |    80486DX-25    |    On    |   Off    |   Off   |   Off   |
          |------------------+----------+----------+---------+---------|
          |    80486DX-33    |    On    |   Off    |   Off   |   On    |
          |------------------+----------+----------+---------+---------|
          |    80486DX-50    |   Off    |    On    |   Off   |   Off   |
          |------------------------------------------------------------|
          | Note: All CPU configurations (Tables A, B & Jumper J23)    |
          | must be set for proper operation.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU TYPE CONFIGURATION (B)                 |
          |------------------------------------------------------------|
          |   Type   |  S1/1   |  S1/2   |  S1/3   |  S1/4   |  S2/1   |
          |----------+---------+---------+---------+---------+---------|
          | 80386DX  |   On    |   On    |   Off   |   Off   |   On    |
          |----------+---------+---------+---------+---------+---------|
          | 80486SX  |   Off   |   Off   |   On    |   On    |   Off   |
          |----------+---------+---------+---------+---------+---------|
          | 80486DX  |   On    |   On    |   Off   |   Off   |   Off   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              CPU TYPE CONFIGURATION (B CON’T)              |
          |------------------------------------------------------------|
          |   Type   |  S2/2   |  S2/3   |  S2/4   |  S2/6   |  S2/7   |
          |----------+---------+---------+---------+---------+---------|
          | 80386DX  |   On    |   On    |   On    |   Off   |   Off   |
          |----------+---------+---------+---------+---------+---------|
          | 80486SX  |   Off   |   Off   |   Off   |   On    |   On    |
          |----------+---------+---------+---------+---------+---------|
          | 80486DX  |   Off   |   Off   |   Off   |   On    |   On    |
          +------------------------------------------------------------+