(TXT) View Source
       
       # UNIDENTIFIED
       
          407
       
          Processor    80486SX/80487SX/80486DX/80486DX2/Pentium          
                       Overdrive                                         
          Processor    20/25/33/40/50(internal)/50/66(internal)MHz       
          Speed        
          Chip Set     OPTI                                              
          Max. Onboard 256MB                                             
          DRAM         
          Cache        128/256/1024KB                                    
          BIOS         AMI                                               
          Dimensions   330mm x 218mm                                     
          I/O Options  32-bit VESA local bus slots (3)                   
          NPU Options  None                                              
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | External battery  |    J4    | Speaker          |   JP22   |
          |-------------------+----------+------------------+----------|
          | Power LED &       |    J6    | Reset switch     |    S9    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Turbo LED         |   JP15   | 32-bit VESA      |  SL1 -   |
          |                   |          | local bus slots  |   SL3    |
          |-------------------+----------+------------------+----------|
          | Turbo switch      |   JP17   |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Jumper |   Position   |
          |------------------------------------+--------+--------------|
          | » | Monitor type select color      |  JP2   |    Closed    |
          |---+--------------------------------+--------+--------------|
          |   | Monitor type select monochrome |  JP2   |     Open     |
          |---+--------------------------------+--------+--------------|
          | » | VESA clock delay enabled       |  JP12  |  pins 1 & 2  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          |   | VESA clock delay disabled      |  JP12  |  pins 2 & 3  |
          |   |                                |        |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
          |-------+-------------+------------+------------+------------|
          |  4MB  | (1) 1M x 36 |    NONE    |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          |  8MB  | (1) 1M x 36 |  (1) 1M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 12MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 16MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |  (1) 1M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 16MB  | (1) 4M x 36 |    NONE    |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          | 20MB  | (1) 1M x 36 |  (1) 4M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 32MB  | (1) 4M x 36 |  (1) 4M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 40MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 4M x  |  (1) 4M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 48MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 64MB  |  (1) 16M x  |    NONE    |    NONE    |    NONE    |
          |       |     36      |            |            |            |
          |-------+-------------+------------+------------+------------|
          | 80MB  | (1) 4M x 36 | (1) 16M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 128MB |  (1) 16M x  | (1) 16M x  |    NONE    |    NONE    |
          |       |     36      |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 160MB | (1) 4M x 36 |  (1) 4M x  | (1) 16M x  | (1) 16M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 192MB |  (1) 16M x  | (1) 16M x  | (1) 16M x  |    NONE    |
          |       |     36      |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 208MB | (1) 4M x 36 | (1) 16M x  | (1) 16M x  | (1) 16M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 256MB |  (1) 16M x  | (1) 16M x  | (1) 16M x  | (1) 16M x  |
          |       |     36      |     36     |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |      TAG      |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 32K x 8  |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
          |------------+---------------+---------------+---------------|
          |    1MB     | (4) 128K x 8  | (4) 128K x 8  | (1) 128K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          | Size  |  JP6   |    JP7     |    JP9     |  JP10  |  JP13  |
          |-------+--------+------------+------------+--------+--------|
          | 128KB |  Open  | pins 1 & 2 | pins 1 & 2 |  Open  | Closed |
          |       |        |   closed   |   closed   |        |        |
          |-------+--------+------------+------------+--------+--------|
          | 256KB |  Open  | pins 2 & 3 | pins 2 & 3 | Closed | Closed |
          |       |        |   closed   |   closed   |        |        |
          |-------+--------+------------+------------+--------+--------|
          |  1MB  | Closed | pins 2 & 3 | pins 2 & 3 | Closed | Closed |
          |       |        |   closed   |   closed   |        |        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |       Type        |        JP4         |        JP5        |
          |-------------------+--------------------+-------------------|
          |      80486SX      | pins 2 & 3 closed  |       Open        |
          |-------------------+--------------------+-------------------|
          |      80487SX      | pins 1 & 2, 3 & 4  | pins 1 & 2 closed |
          |                   |       closed       |                   |
          |-------------------+--------------------+-------------------|
          |      80486DX      | pins 1 & 2, 3 & 4  | pins 2 & 3 closed |
          |                   |       closed       |                   |
          |-------------------+--------------------+-------------------|
          |     80486DX2      | pins 1 & 2, 3 & 4  | pins 2 & 3 closed |
          |                   |       closed       |                   |
          |-------------------+--------------------+-------------------|
          | Pentium Overdrive | pins 1 & 2, 3 & 4  | pins 1 & 2 closed |
          |                   |       closed       |                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |  Speed   |   JPA    |   JPB    |   JPC   |  JP20  |  JP21  |
          |----------+----------+----------+---------+--------+--------|
          |  20MHz   |  1 & 2   |  2 & 3   |  2 & 3  | 2 & 3  | 2 & 3  |
          |----------+----------+----------+---------+--------+--------|
          |  25MHz   |  2 & 3   |  1 & 2   |  2 & 3  | 2 & 3  | 2 & 3  |
          |----------+----------+----------+---------+--------+--------|
          |  33MHz   |  2 & 3   |  2 & 3   |  1 & 2  | 1 & 2  | 2 & 3  |
          |----------+----------+----------+---------+--------+--------|
          |  40MHz   |  1 & 2   |  1 & 2   |  2 & 3  | 2 & 3  | 1 & 2  |
          |----------+----------+----------+---------+--------+--------|
          |  50iMHz  |  2 & 3   |  1 & 2   |  2 & 3  | 2 & 3  | 2 & 3  |
          |----------+----------+----------+---------+--------+--------|
          |  50MHz   |  1 & 2   |  2 & 3   |  1 & 2  | 1 & 2  | 1 & 2  |
          |----------+----------+----------+---------+--------+--------|
          |  66iMHz  |  2 & 3   |  2 & 3   |  1 & 2  | 1 & 2  | 2 & 3  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              ADS# SIGNAL DELAY CONFIGURATION               |
          |------------------------------------------------------------|
          | Speed |           JP3            |          JP27           |
          |-------+--------------------------+-------------------------|
          | 20MHz |    pins 2 & 3 closed     |    pins 2 & 3 closed    |
          |       |         (normal)         |        (normal)         |
          |-------+--------------------------+-------------------------|
          | 25MHz |    pins 2 & 3 closed     |    pins 2 & 3 closed    |
          |       |         (normal)         |        (normal)         |
          |-------+--------------------------+-------------------------|
          | 33MHz |    pins 2 & 3 closed     |    pins 2 & 3 closed    |
          |       |         (normal)         |        (normal)         |
          |-------+--------------------------+-------------------------|
          | 33MHz |    pins 1 & 2 closed     |    pins 2 & 3 closed    |
          |       |         (delay)          |        (normal)         |
          |-------+--------------------------+-------------------------|
          | 40MHz |    pins 1 & 2 closed     |    pins 2 & 3 closed    |
          |       |         (delay)          |        (normal)         |
          |-------+--------------------------+-------------------------|
          | 50MHz |    pins 1 & 2 closed     |    pins 1 & 2 closed    |
          |       |         (delay)          |         (delay)         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               VESA WAIT STATE CONFIGURATION                |
          |------------------------------------------------------------|
          |          Wait states          |            JP16            |
          |-------------------------------+----------------------------|
          |         0 wait states         |            Open            |
          |-------------------------------+----------------------------|
          |         1 wait state          |           Closed           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BUS SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |    CPU speed     |           JP11           |     JP14     |
          |------------------+--------------------------+--------------|
          |     <= 33MHz     | pins 1 & 2, 3 & 4 closed |     Open     |
          |------------------+--------------------------+--------------|
          |     > 33MHz      |    pins 2 & 3 closed     |    Closed    |
          +------------------------------------------------------------+