(TXT) View Source
       
       # ELITEGROUP COMPUTER SYSTEMS, INC.
       
          UM 486V
       
          Processor    80486SX/80487SX/80486DX/80486DX2/Pentium          
                       Overdrive                                         
          Processor    25/33/50(internal)/50/66(internal)MHz             
          Speed        
          Chip Set     UMC                                               
          Max. Onboard 32MB                                              
          DRAM         
          Cache        64/128/256KB                                      
          BIOS         AMI                                               
          Dimensions   330mm 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 |    J1    | Reset switch      |   J12    |
          |------------------+----------+-------------------+----------|
          | Power LED &      |    J4    | Speaker           |   J13    |
          | keylock          |          |                   |          |
          |------------------+----------+-------------------+----------|
          | Turbo LED        |   J10    | 32-bit VESA Local |    S1    |
          |                  |          | bus slot          |          |
          |------------------+----------+-------------------+----------|
          | Turbo switch     |   J11    | 32-bit VESA Local |    S2    |
          |                  |          | bus slot          |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Jumper |   Position   |
          |------------------------------------+--------+--------------|
          | » | Monitor type select color      |  JP13  |  pins 2 & 3  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          |   | Monitor type select monochrome |  JP13  |  pins 1 & 2  |
          |   |                                |        |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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      |
          |------------+---------------+---------------+---------------|
          |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   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  |      JP22       |  JP23  |  JP27  |      JP28      |
          |-------+-----------------+--------+--------+----------------|
          | 64KB  |   pins 1 & 2    |  Open  |  Open  |   pins 1 & 2   |
          |       |     closed      |        |        |     closed     |
          |-------+-----------------+--------+--------+----------------|
          | 128KB |   pins 2 & 3    |  Open  | Closed |   pins 2 & 3   |
          |       |     closed      |        |        |     closed     |
          |-------+-----------------+--------+--------+----------------|
          | 256KB |   pins 1 & 2    | Closed | Closed |   pins 2 & 3   |
          |       |     closed      |        |        |     closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |   Type    |  JP24  |           JP25           |    JP26    |
          |-----------+--------+--------------------------+------------|
          |  80486SX  | Closed |    pins 2 & 3 closed     |    Open    |
          |-----------+--------+--------------------------+------------|
          |  80486SX  |  Open  |           N/A            |    N/A     |
          |  (PQFP)   |        |                          |            |
          |-----------+--------+--------------------------+------------|
          |  80487SX  | Closed |   pins 1 & 2 and 3 & 4   | pins 2 & 3 |
          |           |        |          closed          |   closed   |
          |-----------+--------+--------------------------+------------|
          |  80486DX  | Closed |   pins 1 & 2 and 3 & 4   | pins 1 & 2 |
          |           |        |          closed          |   closed   |
          |-----------+--------+--------------------------+------------|
          | 80486DX2  | Closed |   pins 1 & 2 and 3 & 4   | pins 1 & 2 |
          |           |        |          closed          |   closed   |
          |-----------+--------+--------------------------+------------|
          |  Pentium  | Closed |   pins 1 & 2 and 3 & 4   | pins 2 & 3 |
          | Overdrive |        |          closed          |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |   Speed    |    JP18    |    JP19    |   JP20   |   JP21   |
          |------------+------------+------------+----------+----------|
          |   25MHz    |   Closed   |   Closed   |   Open   |   Open   |
          |------------+------------+------------+----------+----------|
          |   33MHz    |    Open    |   Closed   |   Open   |   Open   |
          |------------+------------+------------+----------+----------|
          |  50i MHz   |   Closed   |   Closed   |   Open   |   Open   |
          |------------+------------+------------+----------+----------|
          |   50MHz    |    Open    |    Open    |   Open   |   Open   |
          |------------+------------+------------+----------+----------|
          |  66i MHz   |    Open    |   Closed   |   Open   |   Open   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |  VESA WAIT STATE/BUS SPEED (ID2 & ID3) CONFIGURATION   |
          |------------------------------------------------------------|
          |  CPU speed  |  Wait states   |  JP15 (ID3)  |  JP16 (ID2)  |
          |-------------+----------------+--------------+--------------|
          |   £ 33MHz   | 0 wait states  |     Open     |     Open     |
          |-------------+----------------+--------------+--------------|
          |   > 33MHz   |  1 wait state  |    Closed    |    Closed    |
          +------------------------------------------------------------+