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       # ELITEGROUP COMPUTER SYSTEMS, INC.
       
          P5TX-B
       
          Processor        AMD, Cyrix, Pentium                           
          Processor Speed  75/90/100/120/133/150/166/200/233MHz          
          Chip Set         Intel                                         
          Video Chip Set   None                                          
          Maximum Onboard  256MB (EDO supported)                         
          Memory           
          Maximum Video    None                                          
          Memory           
          Cache            256/512KB                                     
          BIOS             Award                                         
          Dimensions       281mm x 208mm                                 
          I/O Options      32-bit PCI slots (4), floppy drive interface, 
                           green PC connector, IDE interfaces (2),       
                           parallel port, serial ports (2), IR           
                           connectors (2), USB connector                 
          NPU Options      None                                          
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose          | Location  |
          |------------------+----------+------------------+-----------|
          | USB connector    |    J5    | Turbo LED        | J16/pins  |
          |                  |          |                  |   2 & 3   |
          |------------------+----------+------------------+-----------|
          | IDE interface 2  |    J6    | Green PC         | J16/pins  |
          |                  |          | connector        |   4 & 5   |
          |------------------+----------+------------------+-----------|
          | IDE interface 1  |    J7    | Reset switch     | J16/pins  |
          |                  |          |                  |  9 & 10   |
          |------------------+----------+------------------+-----------|
          | Serial port      |    J8    | Power LED &      | J16/pins  |
          |                  |          | keylock          |  11 - 15  |
          |------------------+----------+------------------+-----------|
          | Serial port      |    J9    | Speaker          | J16/pins  |
          |                  |          |                  |  17 - 20  |
          |------------------+----------+------------------+-----------|
          | IR connector     |   J10    | Green PC LED     |    J18    |
          | (Fast)           |          |                  |           |
          |------------------+----------+------------------+-----------|
          | IR connector     |   J11    | IDE interface    |    J19    |
          |                  |          | LED              |           |
          |------------------+----------+------------------+-----------|
          | Parallel port    |   J12    | Chassis fan      |    J20    |
          |                  |          | power            |           |
          |------------------+----------+------------------+-----------|
          | Floppy drive     |   J13    | 32-bit PCI slots | PC1 – PC4 |
          | interface        |          |                  |           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J1   | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J2   | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | CMOS memory normal operation    |  JP2  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | CMOS memory clear               |  JP2  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       4MB        |   (2) 512K x 32    |        None        |
          |------------------+--------------------+--------------------|
          |       8MB        |   (2) 512K x 32    |   (2) 512K x 32    |
          |------------------+--------------------+--------------------|
          |       8MB        |    (2) 1M x 32     |        None        |
          |------------------+--------------------+--------------------|
          |       12MB       |    (2) 1M x 32     |   (2) 512K x 32    |
          |------------------+--------------------+--------------------|
          |       16MB       |    (2) 2M x 32     |        None        |
          |------------------+--------------------+--------------------|
          |       16MB       |    (2) 1M x 32     |    (2) 1M x 32     |
          |------------------+--------------------+--------------------|
          |       20MB       |    (2) 2M x 32     |   (2) 512K x 32    |
          |------------------+--------------------+--------------------|
          |       24MB       |    (2) 2M x 32     |    (2) 1M x 32     |
          |------------------+--------------------+--------------------|
          |       32MB       |    (2) 4M x 32     |        None        |
          |------------------+--------------------+--------------------|
          |       32MB       |    (2) 2M x 32     |    (2) 2M x 32     |
          |------------------+--------------------+--------------------|
          |       36MB       |    (2) 4M x 32     |   (2) 512K x 32    |
          |------------------+--------------------+--------------------|
          |       40MB       |    (2) 4M x 32     |    (2) 1M x 32     |
          |------------------+--------------------+--------------------|
          |       48MB       |    (2) 4M x 32     |    (2) 2M x 32     |
          |------------------+--------------------+--------------------|
          |       64MB       |    (2) 8M x 32     |        None        |
          |------------------+--------------------+--------------------|
          |       64MB       |    (2) 4M x 32     |    (2) 4M x 32     |
          |------------------+--------------------+--------------------|
          |       68MB       |    (2) 8M x 32     |   (2) 512K x 32    |
          |------------------+--------------------+--------------------|
          |       72MB       |    (2) 8M x 32     |    (2) 1M x 32     |
          |------------------+--------------------+--------------------|
          |       80MB       |    (2) 8M x 32     |    (2) 2M x 32     |
          |------------------+--------------------+--------------------|
          |       96MB       |    (2) 8M x 32     |    (2) 4M x 32     |
          |------------------+--------------------+--------------------|
          |      128MB       |    (2) 8M x 32     |    (2) 8M x 32     |
          |------------------+--------------------+--------------------|
          |      128MB       |    (2) 16M x 32    |        None        |
          |------------------+--------------------+--------------------|
          |      132MB       |    (2) 16M x 32    |   (2) 512K x 32    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |     Size      |        Bank 0        |       Bank 1        |
          |---------------+----------------------+---------------------|
          |     136MB     |     (2) 16M x 32     |     (2) 1M x 32     |
          |---------------+----------------------+---------------------|
          |     144MB     |     (2) 16M x 32     |     (2) 2M x 32     |
          |---------------+----------------------+---------------------|
          |     160MB     |     (2) 16M x 32     |     (2) 4M x 32     |
          |---------------+----------------------+---------------------|
          |     192MB     |     (2) 16M x 32     |     (2) 8M x 32     |
          |---------------+----------------------+---------------------|
          |     256MB     |     (2) 16M x 32     |    (2) 16M x 32     |
          |------------------------------------------------------------|
          | Note: Board accepts EDO memory. The location of banks 0 &  |
          | 1 are unidentified.                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 2       |       Bank 3       |
          |------------------+--------------------+--------------------|
          |       8MB        |    (1) 1M x 64     |        None        |
          |------------------+--------------------+--------------------|
          |       16MB       |    (1) 2M x 64     |        None        |
          |------------------+--------------------+--------------------|
          |       16MB       |    (1) 1M x 64     |    (1) 1M x 64     |
          |------------------+--------------------+--------------------|
          |       24MB       |    (1) 2M x 64     |    (1) 1M x 64     |
          |------------------+--------------------+--------------------|
          |       32MB       |    (1) 4M x 64     |        None        |
          |------------------+--------------------+--------------------|
          |       32MB       |    (1) 2M x 64     |    (1) 2M x 64     |
          |------------------+--------------------+--------------------|
          |       40MB       |    (1) 4M x 64     |    (1) 1M x 64     |
          |------------------+--------------------+--------------------|
          |       48MB       |    (1) 4M x 64     |    (1) 2M x 64     |
          |------------------+--------------------+--------------------|
          |       64MB       |    (1) 8M x 64     |        None        |
          |------------------+--------------------+--------------------|
          |       64MB       |    (1) 4M x 64     |    (1) 4M x 64     |
          |------------------+--------------------+--------------------|
          |       72MB       |    (1) 8M x 64     |    (1) 1M x 64     |
          |------------------+--------------------+--------------------|
          |       80MB       |    (1) 8M x 64     |    (1) 2M x 64     |
          |------------------+--------------------+--------------------|
          |       96MB       |    (1) 8M x 64     |    (1) 4M x 64     |
          |------------------+--------------------+--------------------|
          |      128MB       |    (1) 8M x 64     |    (1) 8M x 64     |
          |------------------+--------------------+--------------------|
          |      128MB       |    (1) 16M x 64    |        None        |
          |------------------+--------------------+--------------------|
          |      136MB       |    (1) 16M x 64    |    (1) 1M x 64     |
          |------------------+--------------------+--------------------|
          |      144MB       |    (1) 16M x 64    |    (1) 2M x 64     |
          |------------------+--------------------+--------------------|
          |      160MB       |    (1) 16M x 64    |    (1) 4M x 64     |
          |------------------+--------------------+--------------------|
          |      192MB       |    (1) 16M x 64    |    (1) 8M x 64     |
          |------------------+--------------------+--------------------|
          |      256MB       |    (1) 16M x 64    |    (1) 16M x 64    |
          |------------------------------------------------------------|
          | Note: The location of banks 2 & 3 are unidentified.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |            Size            |            Bank 0             |
          |----------------------------+-------------------------------|
          |           256KB            |         (2) 32K x 32          |
          |----------------------------+-------------------------------|
          |           512KB            |         (2) 64K x 32          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CPU SPEED SELECTION (CYRIX)                 |
          |------------------------------------------------------------|
          | CPU speed  |  Clock  | Multiplier |          JP1           |
          |            |  speed  |            |                        |
          |------------+---------+------------+------------------------|
          |   120MHz   |  50MHz  |     2x     | 1 & 3, 4 & 6, 11 & 13, |
          |            |         |            |    19 & 21, 20 & 22    |
          |------------+---------+------------+------------------------|
          |   133MHz   |  55MHz  |     2x     | 1 & 3, 4 & 6, 11 & 13, |
          |            |         |            |    17 & 19, 20 & 22    |
          |------------+---------+------------+------------------------|
          |   150MHz   |  60MHz  |     2x     | 1 & 3, 4 & 6, 9 & 11,  |
          |            |         |            |    19 & 21, 20 & 22    |
          |------------+---------+------------+------------------------|
          |   166MHz   |  66MHz  |     2x     | 1 & 3, 4 & 6, 11 & 13, |
          |            |         |            |    19 & 21, 18 & 20    |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU SPEED SELECTION (AMD)                  |
          |------------------------------------------------------------|
          | CPU speed  |  Clock  | Multiplier |          JP1           |
          |            |  speed  |            |                        |
          |------------+---------+------------+------------------------|
          |   75MHz    |  50MHz  |    1.5x    | 1 & 3, 2 & 4, 11 & 13, |
          |            |         |            |    19 & 21, 20 & 22    |
          |------------+---------+------------+------------------------|
          |   90MHz    |  60MHz  |    1.5x    | 1 & 3, 2 & 4, 9 & 11,  |
          |            |         |            |    19 & 21, 20 & 22    |
          |------------+---------+------------+------------------------|
          |   100MHz   |  66MHz  |    1.5x    | 1 & 3, 2 & 4, 11 & 13, |
          |            |         |            |    19 & 21, 18 & 20    |
          |------------+---------+------------+------------------------|
          |   120MHz   |  60MHz  |     2x     | 1 & 3, 4 & 6, 9 & 11,  |
          |            |         |            |    19 & 21, 20 & 22    |
          |------------+---------+------------+------------------------|
          |   133MHz   |  66MHz  |     2x     | 1 & 3, 4 & 6, 11 & 13, |
          |            |         |            |    19 & 21, 18 & 20    |
          |------------+---------+------------+------------------------|
          |   166MHz   |  66MHz  |    2.5x    | 3 & 5, 4 & 6, 9 & 11,  |
          |            |         |            |    19 & 21, 20 & 22    |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CPU SPEED SELECTION (INTEL)                 |
          |------------------------------------------------------------|
          | CPU speed  | Clock  | Multiplier |           JP1           |
          |            | speed  |            |                         |
          |------------+--------+------------+-------------------------|
          |   75MHz    | 50MHz  |    1.5x    | 1 & 3, 2 & 4, 11 & 13,  |
          |            |        |            |    19 & 21, 20 & 22     |
          |------------+--------+------------+-------------------------|
          |   90MHz    | 60MHz  |    1.5x    |  1 & 3, 2 & 4, 9 & 11,  |
          |            |        |            |    19 & 21, 20 & 22     |
          |------------+--------+------------+-------------------------|
          |   100MHz   | 66MHz  |    1.5x    | 1 & 3, 2 & 4, 11 & 13,  |
          |            |        |            |    19 & 21, 18 & 20     |
          |------------+--------+------------+-------------------------|
          |   120MHz   | 60MHz  |     2x     | 1 & 3, 4 & 6, 11 & 13,  |
          |            |        |            |    19 & 21, 20 & 22     |
          |------------+--------+------------+-------------------------|
          |   133MHz   | 66MHz  |     2x     | 1 & 3, 4 & 6, 11 & 13,  |
          |            |        |            |    19 & 21, 18 & 20     |
          |------------+--------+------------+-------------------------|
          |   150MHz   | 60MHz  |    2.5x    |  3 & 5, 4 & 6, 9 & 11,  |
          |            |        |            |    19 & 21, 20 & 22     |
          |------------+--------+------------+-------------------------|
          |   166MHz   | 66MHz  |    2.5x    | 3 & 5, 4 & 6, 11 & 13,  |
          |            |        |            |    19 & 21, 18 & 20     |
          |------------+--------+------------+-------------------------|
          |   200MHz   | 66MHz  |     3x     | 2 & 4, 3 & 5, 11 & 13,  |
          |            |        |            |    19 & 21, 18 & 20     |
          |------------+--------+------------+-------------------------|
          |   233MHz   | 66MHz  |    3.5x    | 1 & 3, 2 & 4, 11 & 13,  |
          |            |        |            |    19 & 21, 18 & 20     |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU VOLTAGE SELECTION (SINGLE)               |
          |------------------------------------------------------------|
          |          Voltage           |              JP3              |
          |----------------------------+-------------------------------|
          |            3.3v            |   Pins 3 & 4, 9 & 10 closed   |
          |----------------------------+-------------------------------|
          |           3.52v            |   Pins 1 & 2, 9 & 10 closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CPU VOLTAGE SELECTION (DUAL)                |
          |------------------------------------------------------------|
          |    Voltage     |    V core    |            JP3             |
          |----------------+--------------+----------------------------|
          |      3.3v      |     2.5v     | Pins 1 & 2, 11 & 12 closed |
          |----------------+--------------+----------------------------|
          |      3.3v      |     2.8v     | Pins 1 & 2, 9 & 10 closed  |
          |----------------+--------------+----------------------------|
          |      3.3v      |     2.9v     |  Pins 1 & 2, 7 & 8 closed  |
          +------------------------------------------------------------+