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

   UC 4913

   Processor         80486SX/80486DX/ODP486SX/80486DX2/CX486SX    
   Processor Speed   25/33/40/50(internal)/50/66(internal)MHz     
   Chip Set          UMC                                          
   Max. Onboard DRAM 64MB                                         
   Cache             64/128/256KB                                 
   BIOS              AMI                                          
   Dimensions        230mm x 218mm                                
   I/O Options       32-bit VESA local bus slots (3)              
   NPU Options       CX487SX                                      

<gopher://bitreich.org/I/th99/m/P-R/31773-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | Speaker          |    J1    | Power LED &       |   JP6    |
   |                  |          | keylock           |          |
   |------------------+----------+-------------------+----------|
   | External battery |    J2    | 32-bit VESA Local |    S1    |
   |                  |          | bus slot          |          |
   |------------------+----------+-------------------+----------|
   | Turbo LED        |   JP3    | 32-bit VESA Local |    S2    |
   |                  |          | bus slot          |          |
   |------------------+----------+-------------------+----------|
   | Turbo switch     |   JP4    | 32-bit VESA Local |    S3    |
   |                  |          | bus slot          |          |
   |------------------+----------+-------------------+----------|
   | Reset switch     |   JP5    |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP11  | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP11  | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Weitek Power 9000 VESA VGA card  |  JP18  | pins 1 & 2 |
   |   | not installed                    |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Weitek Power 9000 VESA VGA card  |  JP18  | pins 2 & 3 |
   |   | installed                        |        |   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     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (4) 16M x 9     |        NONE        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    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      |     NONE      |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |      JP13       |  JP15  |      JP16      |  JP17  |
   |-------+-----------------+--------+----------------+--------|
   | 64KB  |      Open       |  Open  |   pins 1 & 2   |  Open  |
   |       |                 |        |     closed     |        |
   |-------+-----------------+--------+----------------+--------|
   | 128KB |   pins 2 & 3    |  Open  |   pins 2 & 3   | Closed |
   |       |     closed      |        |     closed     |        |
   |-------+-----------------+--------+----------------+--------|
   | 256KB |   pins 1 & 2    | Closed |   pins 1 & 2   | Closed |
   |       |     closed      |        |     closed     |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |       PGA       | Socket |     JP7     |   JP8    |  JP12  |
   |-----------------+--------+-------------+----------+--------|
   |     80386DX     |  PGA   | pins 2 & 3  |   Open   | Closed |
   |                 |        |   closed    |          |        |
   |-----------------+--------+-------------+----------+--------|
   |     80486SX     |  PQFP  | pins 2 & 3  |   Open   |  Open  |
   |                 |        |   closed    |          |        |
   |-----------------+--------+-------------+----------+--------|
   |     80486SX     |  PGA   |     N/A     |   N/A    | Closed |
   |-----------------+--------+-------------+----------+--------|
   |     80486DX     |  PQFP  | pins 1 & 2  | pins 2 & |  Open  |
   |                 |        |  and 3 & 4  | 3 closed |        |
   |-----------------+--------+-------------+----------+--------|
   |     80486DX     |  PGA   |     N/A     |   N/A    | Closed |
   |-----------------+--------+-------------+----------+--------|
   |    80486DX2     |  PQFP  | pins 1 & 2  | pins 2 & |  Open  |
   |                 |        |  and 3 & 4  | 3 closed |        |
   |-----------------+--------+-------------+----------+--------|
   |    80486DX2     |  PGA   |     N/A     |   N/A    | Closed |
   |-----------------+--------+-------------+----------+--------|
   |    ODP486SX     |  PQFP  | pins 1 & 2  | pins 1 & |  Open  |
   |                 |        |  and 3 & 4  | 2 closed |        |
   |-----------------+--------+-------------+----------+--------|
   |    ODP486SX     |  PGA   |     N/A     |   N/A    | Closed |
   |-----------------+--------+-------------+----------+--------|
   | CX486SX/CX487SX |  PGA   | pins 1 & 2  | pins 2 & | Closed |
   |                 |        |  and 3 & 4  | 3 closed |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |       Speed        |        JP9        |       JP10        |
   |--------------------+-------------------+-------------------|
   |       25MHz        |      Closed       |      Closed       |
   |--------------------+-------------------+-------------------|
   |       33MHz        |       Open        |      Closed       |
   |--------------------+-------------------+-------------------|
   |       40MHz        |      Closed       |       Open        |
   |--------------------+-------------------+-------------------|
   |      50i MHz       |      Closed       |      Closed       |
   |--------------------+-------------------+-------------------|
   |      66i MHz       |       Open        |      Closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     NPU CONFIGURATION                      |
   |------------------------------------------------------------|
   |    CX487SX    |       JP19       |    JP20    |    JP21    |
   |---------------+------------------+------------+------------|
   |   Installed   |    pins 2 & 3    | pins 1 & 2 | pins 1 & 2 |
   |               |      closed      |   closed   |   closed   |
   |---------------+------------------+------------+------------|
   | Not installed |    pins 1 & 2    | pins 2 & 3 | pins 2 & 3 |
   |               |      closed      |   closed   |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          VESA WAIT STATE/BUS SPEED CONFIGURATION           |
   |------------------------------------------------------------|
   |   CPU speed   |  Wait states  |     JP1      |     JP2     |
   |---------------+---------------+--------------+-------------|
   |    GBP 33MHz    | 0 wait states |     Open     |    Open     |
   |---------------+---------------+--------------+-------------|
   |    > 33MHz    | 1 wait state  |    Closed    |   Closed    |
   +------------------------------------------------------------+