PC CHIPS MAUNFACTURING, LTD.
============================

   M725

   Device Type      Mainboard                                     
   Processor        Pentium II                                    
   Processor Speed  233/266/300/333MHz                            
   Chip Set         Intel                                         
   Maximum Onboard  384MB (EDO & SDRAM supported)                 
   Memory           
   Cache            256/512KB (located on the Pentium II CPU)     
   BIOS             AMI                                           
   Dimensions       220mm x 220mm                                 
   I/O Options      32-bit PCI slots (3), floppy drive interface, 
                    IDE interfaces (2), parallel port, PS/2 mouse 
                    port, PS/2 mouse interface, serial ports (2), 
                    ATX power connector, AGP slot, audio in -     
                    CD-ROMs (2)                                   

<gopher://bitreich.org/I/th99/m/P-R/35779-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         | Location | Purpose        |   Location   |
   |-----------------+----------+----------------+--------------|
   | AGP slot        |   AGP    | Sound and Game |      J3      |
   |                 |          | Header         |              |
   |-----------------+----------+----------------+--------------|
   | ATX power       |   ATX    | ATX form card  |      J4      |
   | connector       |          | connector      |              |
   |-----------------+----------+----------------+--------------|
   | Audio in -      |   CD1    | Speaker        |  J5/pins 1,  |
   | CD-ROM          |          |                |   3, 5, 7    |
   |-----------------+----------+----------------+--------------|
   | Audio in -      |   CD2    | Power LED &    |  J5/pins 2,  |
   | CD-ROM          |          | keylock        | 4, 6, 8, 10  |
   |-----------------+----------+----------------+--------------|
   | Serial port 1   |   COM1   | Turbo LED      | J5/pins 13 & |
   |                 |          |                |      14      |
   |-----------------+----------+----------------+--------------|
   | Serial port 2   |   COM2   | IDE interface  | J5/pins 15 & |
   |                 |          | LED            |      16      |
   |-----------------+----------+----------------+--------------|
   | CPU fan power   |   FAN1   | Reset switch   | J5/pins 17 & |
   |                 |          |                |      18      |
   |-----------------+----------+----------------+--------------|
   | Floppy drive    |   FDC1   | Green PC LED   | J5/pins 19 & |
   | interface       |          |                |      20      |
   |-----------------+----------+----------------+--------------|
   | IDE interface 1 |   IDE1   | 32-bit PCI     |  PC1 - PC3   |
   |                 |          | slots          |              |
   |-----------------+----------+----------------+--------------|
   | IDE interface 2 |   IDE2   | Parallel port  |     PRN1     |
   |-----------------+----------+----------------+--------------|
   | Digital audio   |    J1    | PS/2 mouse     |     PS1      |
   | out             |          | interface      |              |
   |-----------------+----------+----------------+--------------|
   | Digital audio   |    J2    | PS/2 mouse     |     PS2      |
   | in              |          | port           |              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |   | Sound pro enabled               |  JP1  |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Sound pro disabled              |  JP1  |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Microphone type select standard |  JP2  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | Microphone type select special  |  JP2  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |>> | CMOS memory normal operation    | JP10  |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | CMOS memory clear               | JP10  |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
   |------------+---------------+---------------+---------------|
   |    8 MB    |   1 M x 64    |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |   16 MB    |   1 M x 64    |   1 M x 64    |     None      |
   |------------+---------------+---------------+---------------|
   |   16 MB    |   2 M x 64    |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |   24 MB    |   1 M x 64    |   1 M x 64    |   1 M x 64    |
   |------------+---------------+---------------+---------------|
   |   32 MB    |   2 M x 64    |   2 M x 64    |     None      |
   |------------+---------------+---------------+---------------|
   |   32 MB    |   4 M x 64    |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |   40 MB    |   2 M x 64    |   2 M x 64    |   1 M x 64    |
   |------------+---------------+---------------+---------------|
   |   48 MB    |   2 M x 64    |   2 M x 64    |   2 M x 64    |
   |------------+---------------+---------------+---------------|
   |   64 MB    |   4 M x 64    |   4 M x 64    |     None      |
   |------------+---------------+---------------+---------------|
   |   64 MB    |   8 M x 64    |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |   80 MB    |   4 M x 64    |   4 M x 64    |   2 M x 64    |
   |------------+---------------+---------------+---------------|
   |   96 MB    |   4 M x 64    |   4 M x 64    |   4 M x 64    |
   |------------+---------------+---------------+---------------|
   |   128 MB   |   8 M x 64    |   8 M x 64    |     None      |
   |------------+---------------+---------------+---------------|
   |   128 MB   |   16 M x 64   |     None      |     None      |
   |------------+---------------+---------------+---------------|
   |   130 MB   |   8 M x 64    |   8 M x 64    |   4 M x 64    |
   |------------+---------------+---------------+---------------|
   |   192 MB   |   8 M x 64    |   8 M x 64    |   8 M x 64    |
   |------------+---------------+---------------+---------------|
   |   256 MB   |   16 M x 64   |   16 M x 64   |     None      |
   |------------+---------------+---------------+---------------|
   |   320 MB   |   16 M x 64   |   16 M x 64   |   8 M x 64    |
   |------------+---------------+---------------+---------------|
   |   384 MB   |   16 M x 64   |   16 M x 64   |   16 M x 64   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DIMM VOLTAGE CONFIGURATION                 |
   |------------------------------------------------------------|
   |     Voltage      |        JP5A        |        JP5B        |
   |------------------+--------------------+--------------------|
   |>> |     3.3v     | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |      5v      | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Note: The cache is located on the Pentium II CPU.          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU FREQUENCY SELECTION                   |
   |------------------------------------------------------------|
   |         Frequency          |              JP7              |
   |----------------------------+-------------------------------|
   |           66MHz            |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU MULTIPLIER SELECTION                  |
   |------------------------------------------------------------|
   | Multiplier |   JP3A    |   JP3B    |   JP3C    |   JP3D    |
   |------------+-----------+-----------+-----------+-----------|
   |    1.5x    |   Open    |   Open    |  Closed   |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |     2x     |  Closed   |  Closed   |  Closed   |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |     2x     |   Open    |   Open    |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    2.5x    |   Open    |  Closed   |  Closed   |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |     3x     |  Closed   |  Closed   |   Open    |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |    3.5x    |   Open    |  Closed   |   Open    |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |     4x     |  Closed   |  Closed   |  Closed   |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    4.5x    |   Open    |  Closed   |  Closed   |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |     5x     |  Closed   |  Closed   |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    5.5x    |   Open    |  Closed   |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |     6x     |  Closed   |   Open    |  Closed   |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |    6.5x    |   Open    |   Open    |  Closed   |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |     7x     |  Closed   |   Open    |   Open    |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |    7.5x    |   Open    |   Open    |   Open    |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |     8x     |  Closed   |   Open    |  Closed   |   Open    |
   +------------------------------------------------------------+