(TXT) View Source
       
       # UNIDENTIFIED
       
          VL-486
       
          Processor            80486SX/80487SX/ODP487SX/80486DX/80486DX2 
          Processor Speed      25/33/50(internal)/50/66(internal)MHz     
          Chip Set             UMC                                       
          Video Chip Set       None                                      
          Maximum Onboard      32MB                                      
          Memory               
          Maximum Video Memory None                                      
          Cache                128/256KB                                 
          BIOS                 AMI                                       
          Dimensions           254mm x 218mm                             
          I/O Options          32-bit VESA local bus slots (2)           
          NPU Options          None                                      
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | External battery |   BATT   | Turbo switch      |   CN4    |
          |------------------+----------+-------------------+----------|
          | Power LED &      |   CN1    | Turbo LED         |   CN5    |
          | keylock          |          |                   |          |
          |------------------+----------+-------------------+----------|
          | Speaker          |   CN2    | Auxiliary         |   KBD    |
          |                  |          | keyboard          |          |
          |                  |          | connector         |          |
          |------------------+----------+-------------------+----------|
          | Reset switch     |   CN3    | 32-bit VESA local |  SL1 &   |
          |                  |          | bus slots         |   SL2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Label |   Position    |
          |------------------------------------+-------+---------------|
          |   | Battery type select internal   | BATT  |  Pins 2 & 3   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | Battery type select external   | BATT  |    Closed     |
          |---+--------------------------------+-------+---------------|
          |   | CMOS memory clear              | BATT  |  Pins 3 & 4   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | Monitor type select color      |  C/M  |    Closed     |
          |---+--------------------------------+-------+---------------|
          |   | Monitor type select monochrome |  C/M  |     Open      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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     |
          |------------------------------------------------------------|
          | Note: The location of banks 0 & 1 is unidentified.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |      TAG      |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |     None      |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          | Size  |     JS3     |    JS4     |    JS5     |    JS6     |
          |-------+-------------+------------+------------+------------|
          | 128KB | Pins 1 & 2  | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
          |       |   closed    |   closed   |   closed   |   closed   |
          |-------+-------------+------------+------------+------------|
          | 256KB | Pins 2 & 3  | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
          |       |   closed    |   closed   |   closed   |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |  Speed   |   JC2    |   JC3   |   JF2   |   JF3   |  JF5   |
          |----------+----------+---------+---------+---------+--------|
          |  25MHz   |   Open   |  2 & 3  | Closed  | Closed  |  Open  |
          |----------+----------+---------+---------+---------+--------|
          |  33MHz   |   Open   |  2 & 3  |  Open   | Closed  | Closed |
          |----------+----------+---------+---------+---------+--------|
          |  50iMHz  |   Open   |  2 & 3  | Closed  | Closed  |  Open  |
          |----------+----------+---------+---------+---------+--------|
          |  50MHz   |  Closed  |  1 & 2  |  Open   |  Open   |  Open  |
          |----------+----------+---------+---------+---------+--------|
          |  66iMHz  |   Open   |  2 & 3  |  Open   | Closed  | Closed |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CPU TYPE SELECTION                     |
          |------------------------------------------------------------|
          |    Type    |           JC5            |        JC6         |
          |------------+--------------------------+--------------------|
          |  80486SX   |    Pins 2 & 3 closed     |        Open        |
          |------------+--------------------------+--------------------|
          |  80487SX   | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed  |
          |------------+--------------------------+--------------------|
          |  ODP487SX  | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed  |
          |------------+--------------------------+--------------------|
          |  80486DX   | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed  |
          |------------+--------------------------+--------------------|
          |  80486DX2  | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                VL BUS WAIT STATE SELECTION                 |
          |------------------------------------------------------------|
          |             Setting             |            J2            |
          |---------------------------------+--------------------------|
          | »      |           0            |           Open           |
          |--------+------------------------+--------------------------|
          |        |           1            |          Closed          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   VL BUS SPEED SELECTION                   |
          |------------------------------------------------------------|
          |             Speed             |             J1             |
          |-------------------------------+----------------------------|
          |           <= 33MHz            |            Open            |
          |-------------------------------+----------------------------|
          |            >33 MHz            |           Closed           |
          +------------------------------------------------------------+