ELITEGROUP COMPUTER SYSTEMS, INC.
=================================

   UM 486V AIO

   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), floppy drive     
                interface,                                        
                                                                  
                game port, IDE interface, parallel port, serial   
                ports (2)                                         
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/P-R/31770-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | External battery |    J1    | Turbo LED         |   J10    |
   |------------------+----------+-------------------+----------|
   | Game port        |    J2    | Turbo switch      |   J11    |
   |------------------+----------+-------------------+----------|
   | Parallel port    |    J4    | Reset switch      |   J12    |
   |------------------+----------+-------------------+----------|
   | Serial port 1    |    J5    | Speaker           |   J13    |
   |------------------+----------+-------------------+----------|
   | Serial port 2    |    J6    | Power LED &       |   J14    |
   |                  |          | keylock           |          |
   |------------------+----------+-------------------+----------|
   | Floppy drive     |    J8    | IDE LED connector |   JP12   |
   | interface        |          |                   |          |
   |------------------+----------+-------------------+----------|
   | IDE interface    |    J9    | 32-bit VESA Local | S1 & S2  |
   | connector        |          | bus slots         |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Jumper |  Position   |
   |-------------------------------------+--------+-------------|
   |>> | Game port enabled               |  JP1   | pins 1 & 2  |
   |   |                                 |        |   closed    |
   |---+---------------------------------+--------+-------------|
   |   | Game port disabled              |  JP1   | pins 2 & 3  |
   |   |                                 |        |   closed    |
   |---+---------------------------------+--------+-------------|
   |>> | Floppy drive interface enabled  |  JP6   | pins 1 & 2  |
   |   |                                 |        |   closed    |
   |---+---------------------------------+--------+-------------|
   |   | Floppy drive interface disabled |  JP6   | pins 2 & 3  |
   |   |                                 |        |   closed    |
   |---+---------------------------------+--------+-------------|
   |>> | Monitor type select color       |  JP13  | pins 2 & 3  |
   |   |                                 |        |   closed    |
   |---+---------------------------------+--------+-------------|
   |   | Monitor type select monochrome  |  JP13  | pins 1 & 2  |
   |   |                                 |        |   closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   | Port 1 (J5)  |  Port 2  |  JP3   |  JP7   |  JP8   |  JP9  |
   |              |   (J6)   |        |        |        |       |
   |--------------+----------+--------+--------+--------+-------|
   |>> |   COM1   |   COM2   | pins 1 | pins 1 | pins 1 | pins  |
   |   |          |          |  & 2   |  & 2   |  & 2   | 1 & 2 |
   |---+----------+----------+--------+--------+--------+-------|
   |   |   COM1   | Disabled | pins 2 |  N/A   | pins 1 | pins  |
   |   |          |          |  & 3   |        |  & 2   | 1 & 2 |
   |---+----------+----------+--------+--------+--------+-------|
   |   | Disabled |   COM2   | pins 1 | pins 1 |  N/A   | pins  |
   |   |          |          |  & 2   |  & 2   |        | 2 & 3 |
   |---+----------+----------+--------+--------+--------+-------|
   |   |   COM3   |   COM4   | pins 1 | pins 2 | pins 2 | pins  |
   |   |          |          |  & 2   |  & 3   |  & 3   | 1 & 2 |
   |---+----------+----------+--------+--------+--------+-------|
   |   |   COM3   | Disabled | pins 2 |  N/A   | pins 2 | pins  |
   |   |          |          |  & 3   |        |  & 3   | 1 & 2 |
   |---+----------+----------+--------+--------+--------+-------|
   |   | Disabled |   COM4   | pins 1 | pins 2 |  N/A   | pins  |
   |   |          |          |  & 2   |  & 3   |        | 2 & 3 |
   |---+----------+----------+--------+--------+--------+-------|
   |   | Disabled | Disabled | pins 2 |  N/A   |  N/A   | pins  |
   |   |          |          |  & 3   |        |        | 2 & 3 |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |    Port    |  LPT  |        JP2        |        JP4        |
   |------------+-------+-------------------+-------------------|
   |  Enabled   | LPT2  | pins 1 & 2 closed | pins 1 & 2 closed |
   |------------+-------+-------------------+-------------------|
   |  Disabled  | LPT3  | pins 2 & 3 closed | pins 2 & 3 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     | N/A  |    pins 2 & 3    |      Open      |
   |                 |      |      closed      |                |
   |-----------------+------+------------------+----------------|
   | 80486SX (PQFP)  | Open |       N/A        |      N/A       |
   |-----------------+------+------------------+----------------|
   |     80487SX     | N/A  | pins 1 & 2 and 3 |   pins 2 & 3   |
   |                 |      |       & 4        |     closed     |
   |-----------------+------+------------------+----------------|
   |     80486DX     | N/A  | pins 1 & 2 and 3 |   pins 1 & 2   |
   |                 |      |       & 4        |     closed     |
   |-----------------+------+------------------+----------------|
   |    80486DX2     | N/A  | pins 1 & 2 and 3 |   pins 1 & 2   |
   |                 |      |       & 4        |     closed     |
   |-----------------+------+------------------+----------------|
   |     Pentium     | N/A  | pins 1 & 2 and 3 |   pins 2 & 3   |
   |    Overdrive    |      |       & 4        |     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 CONFIGURATION           |
   |------------------------------------------------------------|
   |   CPU speed   |  Wait states  |     JP15     |    JP16     |
   |---------------+---------------+--------------+-------------|
   |    GBP 33MHz    | 0 wait states |     Open     |    Open     |
   |---------------+---------------+--------------+-------------|
   |    > 33MHz    | 1 wait state  |    Closed    |   Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     IDE CONFIGURATION                      |
   |------------------------------------------------------------|
   |     Setting      |        JP5         |        JP10        |
   |------------------+--------------------+--------------------|
   |     Enabled      | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+