ACER, INC.
==========

   PI1

   Processor       CX M1/Pentium                                  
   Processor Speed 75/90/100MHz                                   
   Chip Set        Unidentified                                   
   Video Chip Set  Cirrus Logic                                   
   Maximum Onboard 128MB                                          
   Memory          
   Maximum Video   2MB                                            
   Memory          
   Cache           256KB                                          
   BIOS            Unidentified                                   
   Dimensions      330mm x 218mm                                  
   I/O Options     Floppy drive interface, green PC connector,    
                   IDE interfaces (2), parallel port, PS/2 mouse  
                   port, serial ports (2), feature connector, VGA 
                   port, riser slot                               
   NPU Options     None                                           

<gopher://bitreich.org/I/th99/m/A-B/33524-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose       | Location | Purpose              | Location |
   |---------------+----------+----------------------+----------|
   | Feature       |   CN1    | IDE interface 1      |   CN9    |
   | connector     |          |                      |          |
   |---------------+----------+----------------------+----------|
   | PS/2 mouse    |   CN2    | Front panel LEDs     |    J1    |
   | port          |          |                      |          |
   |---------------+----------+----------------------+----------|
   | Serial port 1 |   CN3    | Front panel LEDs     |    J2    |
   |---------------+----------+----------------------+----------|
   | Serial port 2 |   CN4    | IDE interface LED    |    J3    |
   |---------------+----------+----------------------+----------|
   | Parallel port |   CN5    | IDE interface LED    |    J4    |
   |---------------+----------+----------------------+----------|
   | VGA port      |   CN6    | Green PC             |   JP15   |
   |               |          | connector/reset      |          |
   |               |          | switch               |          |
   |---------------+----------+----------------------+----------|
   | Floppy drive  |   CN7    | Riser slot           |   SL1    |
   | interface     |          |                      |          |
   |---------------+----------+----------------------+----------|
   | IDE interface |   CN8    |                      |          |
   | 2             |          |                      |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label |  Position  |
   |---------------------------------------+-------+------------|
   |>> | BIOS type select OEM BIOS         |  JP1  | Pins 2 & 3 |
   |   | installed                         |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | BIOS type select RESERVED BIOS    |  JP1  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Password disabled                 |  JP2  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Password enabled                  |  JP2  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | BIOS type select flash BIOS       |  JP3  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | BIOS type select EPROM            |  JP3  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | On board SMC665 enabled           |  JP6  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | On board SMC665 disabled          |  JP6  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | On board GD5434 enabled           |  JP7  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | On board GD5434 disabled          |  JP7  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | IDE interface enabled             |  JP9  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | IDE interface disabled            |  JP9  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | ADS# not delayed                  | JP11  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | ADS# delayed by one CPU clock     | JP11  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Reset switch used as reset switch | JP15  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Reset switch used as green PC     | JP15  | Pins 1 & 2 |
   |   | connector                         |       |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       8MB        |    (2) 1M x 36     |        None        |
   |------------------+--------------------+--------------------|
   |       16MB       |        None        |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 1M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       24MB       |    (2) 2M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 4M x 36     |        None        |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 2M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (2) 4M x 36     |    (2) 1M x 36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       48MB       |    (2) 2M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 8M x 36     |        None        |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 4M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       72MB       |    (2) 1M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (2) 8M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       96MB       |    (2) 4M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (2) 8M x 36     |    (2) 8M x 36     |
   |------------------------------------------------------------|
   | Note: Banks are interchangeable.                           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Note: 256KB cache is factory installed and is not          |
   | configurable.                                              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 VIDEO MEMORY CONFIGURATION                 |
   |------------------------------------------------------------|
   |      Size      |      Bank 0      |         Bank 1         |
   |----------------+------------------+------------------------|
   |      1MB       |       1MB        |          None          |
   |----------------+------------------+------------------------|
   |      2MB       |       1MB        |     (2) 256K x 16      |
   |------------------------------------------------------------|
   | Note: Bank 0 is factory installed and is not configurable. |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CPU SPEED SELECTION                     |
   |------------------------------------------------------------|
   |    CPU speed     |    Clock speed     |        JP8         |
   |------------------+--------------------+--------------------|
   |      75MHz       |       50MHz        | Pins 1 & 4 closed  |
   |------------------+--------------------+--------------------|
   |      90MHz       |       60MHz        | Pins 2 & 5 closed  |
   |------------------+--------------------+--------------------|
   |      100MHz      |       66MHz        | Pins 3 & 6 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     CPU TYPE SELECTION                     |
   |------------------------------------------------------------|
   |            Type            |             JP12              |
   |----------------------------+-------------------------------|
   |           Cyrix            |       Pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |           Intel            |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU VOLTAGE SELECTION                    |
   |------------------------------------------------------------|
   |          Voltage           |             JP13              |
   |----------------------------+-------------------------------|
   |          3.3825v           |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |          3.5250v           |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU CORE CLOCK RATIO SELECTION               |
   |------------------------------------------------------------|
   |           Ratio            |             JP14              |
   |----------------------------+-------------------------------|
   |            3/2             |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |             2x             |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   |     Channel      |        JP4         |        JP5         |
   |------------------+--------------------+--------------------|
   |>>  |      1      | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |----+-------------+--------------------+--------------------|
   |    |      3      | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+