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       # ACER, INC.
       
          AP5V
       
          Device Type      Mainboard                                     
          Processor        Pentium                                       
          Processor Speed  75/90/100/120/133/150/166/200MHz              
          Chip Set         Intel 430VX                                   
          Video Chip Set   None                                          
          Maximum Onboard  128MB (EDO & SDRAM supported)                 
          Memory           
          Maximum Video    None                                          
          Memory           
          Cache            256/512KB                                     
          BIOS             AMI                                           
          Dimensions       280mm x 220mm                                 
          I/O Options      32-bit PCI slots (4), floppy drive interface, 
                           IDE interfaces (2), parallel port, PS/2 mouse 
                           port, serial ports (2), VRM connector, USB    
                           connector                                     
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Front panel       |    C1    | IDE interface 1  |   CN6    |
          | connector         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | IDE interface LED |    C2    | PS/2 mouse       |   CN7    |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN1    | Chassis fan      |   CN12   |
          |                   |          | power            |          |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   CN2    | 32-bit PCI slots |  PC1 –   |
          |                   |          |                  |   PC4    |
          |-------------------+----------+------------------+----------|
          | Parallel port     |   CN3    | USB connector    |   USB    |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |   CN4    | VRM connector    |   VRM    |
          | interface         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | IDE interface 2   |   CN5    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | CMOS memory normal operation    | JP12  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | CMOS memory clear               | JP12  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | On board I/O enabled            | JP13  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | On board I/O disabled           | JP13  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | ISA clock select CLK/3          | JP14  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | ISA clock select CLK/4          | JP14  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | PS/2 mouse enabled              | JP15  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | PS/2 mouse disabled             | JP15  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | Flash BIOS voltage select 5v    | JP16  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Flash BIOS voltage select 12v   | JP16  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP17  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP18  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP20  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP21  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP22  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     | JP23  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Keyboard clock select 8MHz      | JP24  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Keyboard clock select 12MHz     | JP24  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       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     |
          |------------------------------------------------------------|
          |      Note: Board accepts EDO & SDRAM memory.               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |   Type    |           JP8           |         JP9          |
          |-----------+-------------------------+----------------------|
          | » | SDRAM |          Open           |         Open         |
          |---+-------+-------------------------+----------------------|
          |   |  EDO  | Pins 1 & 2, 3 & 4, 5 &  | Pins 1 & 2, 3 & 4, 5 |
          |   |       |        6 closed         |      & 6 closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |            Size            |            Bank 0             |
          |----------------------------+-------------------------------|
          |           256KB            |         (2) 32K x 32          |
          |----------------------------+-------------------------------|
          |           512KB            |         (2) 64K x 32          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |  CPU   | Clock  | Multiplier |  JP1  |  JP2  | JP3  | JP4  |
          | speed  | speed  |            |       |       |      |      |
          |--------+--------+------------+-------+-------+------+------|
          | 75MHz  | 50MHz  |    1.5x    | 1 & 2 | 1 & 2 | 1 &  | 1 &  |
          |        |        |            |       |       |  2   |  2   |
          |--------+--------+------------+-------+-------+------+------|
          | 90MHz  | 60MHz  |    1.5x    | 1 & 2 | 1 & 2 | 2 &  | 1 &  |
          |        |        |            |       |       |  3   |  2   |
          |--------+--------+------------+-------+-------+------+------|
          | 100MHz | 66MHz  |    1.5x    | 1 & 2 | 1 & 2 | 1 &  | 2 &  |
          |        |        |            |       |       |  2   |  3   |
          |--------+--------+------------+-------+-------+------+------|
          | 120MHz | 60MHz  |     2x     | 1 & 2 | 2 & 3 | 2 &  | 1 &  |
          |        |        |            |       |       |  3   |  2   |
          |--------+--------+------------+-------+-------+------+------|
          | 133MHz | 66MHz  |     2x     | 1 & 2 | 2 & 3 | 1 &  | 2 &  |
          |        |        |            |       |       |  2   |  3   |
          |--------+--------+------------+-------+-------+------+------|
          | 150MHz | 60MHz  |    2.5x    | 2 & 3 | 2 & 3 | 2 &  | 1 &  |
          |        |        |            |       |       |  3   |  2   |
          |--------+--------+------------+-------+-------+------+------|
          | 166MHz | 66MHz  |    2.5x    | 2 & 3 | 2 & 3 | 1 &  | 2 &  |
          |        |        |            |       |       |  2   |  3   |
          |--------+--------+------------+-------+-------+------+------|
          | 200MHz | 66MHz  |     3x     | 2 & 3 | 1 & 2 | 1 &  | 2 &  |
          |        |        |            |       |       |  2   |  3   |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CPU TYPE SELECTION                     |
          |------------------------------------------------------------|
          |   Type   |          JP5           |          JP6           |
          |----------+------------------------+------------------------|
          | » | P54C | Pins 1 & 2, 3 & 4, 5 & | Pins 1 & 2, 3 & 4, 5 & |
          |   |      |        6 closed        |        6 closed        |
          |---+------+------------------------+------------------------|
          |   | P55C |          Open          |          Open          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU VOLTAGE SELECTION                    |
          |------------------------------------------------------------|
          |          Voltage           |              JP7              |
          |----------------------------+-------------------------------|
          |           3.45v            |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |           3.52v            |       Pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DMA CHANNEL SELECTION                    |
          |------------------------------------------------------------|
          |     Channel      |        JP10        |        JP11        |
          |------------------+--------------------+--------------------|
          |    |      1      | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          |----+-------------+--------------------+--------------------|
          | »  |      3      | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          +------------------------------------------------------------+