
ACER, INC.

AP5T (REV. 2.0)

Device Type        Mainboard
Processor          CX 6X86/CX 6X86L/CX 686MX/IDT C6/AM K5/AM K6/Pentium/

                   Pentium MMX
Processor Speed    90/100/120/133/150/166/200/233/266MHz
Chip Set           Intel
Video Chip Set     None
Maximum Onboard    256MB (EDO & SDRAM supported)
Memory
Maximum Video      None
Memory
Cache              256/512KB
BIOS               Award
Dimensions         254mm x 218mm
I/O Options        32-bit PCI slots (4), floppy drive interface, green PC
                   connector, IDE interfaces (2), parallel port, PS/2
                   mouse interface, serial ports (2), USB connector, IR
                   connector
NPU Options        None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Power LED &          C1/pins 1  5   Parallel port            CN3
  keylock

  Speaker               C1/pins 7 -    Floppy drive             CN4
                            10         interface

  Green PC LED         C1/pins 12 &    IDE interface 1          CN5
                            13

  Green PC connector   C1/pins 15 -    IDE interface 2          CN6
                            17

  Reset switch         C1/pins 19 &    PS/2 mouse               CN7
                            20         interface

  IDE interface LED         C2         IR connector             IR1

  Chassis fan power         C3         32-bit PCI slots      PC1  PC4

  Serial port 2            CN1         USB connector            USB

  Serial port 1            CN2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP14          Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP14          Pins 2 & 3
                                                              closed

     On board I/O enabled                    JP18          Pins 1 & 2
                                                              closed

      On board I/O disabled                   JP18          Pins 2 & 3
                                                              closed

     PS/2 mouse enabled                      JP20          Pins 1 & 2
                                                              closed

      PS/2 mouse disabled                     JP20          Pins 2 & 3
                                                              closed

              SIMM CONFIGURATION

      Size          Bank 0          Bank 1

      8MB         (2) 1M x 36        None

      16MB        (2) 2M x 36        None

      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

      48MB        (2) 4M x 36    (2) 2M x 36

      64MB        (2) 8M x 36        None

      64MB        (2) 4M x 36    (2) 4M x 36

      72MB        (2) 8M x 36    (2) 1M x 36

      80MB        (2) 8M x 36    (2) 2M x 36

      96MB        (2) 8M x 36    (2) 4M x 36

     128MB        (2) 16M x 36       None

          SIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1

     128MB        (2) 8M x 36    (2) 8M x 36

     136MB        (2) 16M x 36   (2) 1M x 36

     144MB        (2) 16M x 36   (2) 2M x 36

     160MB        (2) 16M x 36   (2) 4M x 36

     192MB        (2) 16M x 36   (2) 8M x 36

     256MB        (2) 16M x 36   (2) 16M x 36

  Note: Board accepts EDO memory.

               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) 16M x 64        None

     128MB        (1) 8M x 64     (1) 8M x 64

     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: Board accepts SDRAM memory.

      CACHE CONFIGURATION

      Size          Bank 0

     256KB       (2) 32K x 32

     512KB       (2) 64K x 32

                       CPU SPEED SELECTION (CX 6X86)

    CPU      Clock    Multiplier    JP1    JP2   JP3    JP4    JP5   JP6
  speed     speed

  150MHz    60MHz         2x        2 &    1 &   1 &    1 &    2 &    1 &
                                     3     2      2     2      3      2

  166MHz    66MHz         2x        2 &    1 &   1 &    2 &    1 &    1 &
                                     3     2      2     3      2      2

  200MHz    75MHz         2x        2 &    1 &   1 &    1 &    2 &    2 &
                                     3     2      2     2      3      3

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86L)

    CPU      Clock    Multiplier    JP1    JP2   JP3    JP4    JP5   JP6
  speed     speed

  150MHz    60MHz         2x        2 &    1 &   1 &    1 &    2 &    1 &
                                     3     2      2     2      3      2

  166MHz    66MHz         2x        2 &    1 &   1 &    2 &    1 &    1 &
                                     3     2      2     3      2      2

  200MHz    75MHz         2x        2 &    1 &   1 &    1 &    2 &    2 &
                                     3     2      2     2      3      3

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86MX)

    CPU      Clock    Multiplier    JP1    JP2   JP3    JP4    JP5   JP6
  speed     speed

  166MHz    60MHz        2.5x       2 &    2 &   1 &    1 &    2 &    1 &
                                     3     3      2     2      3      2

  200MHz    66MHz        2.5x       2 &    2 &   1 &    2 &    1 &    1 &
                                     3     3      2     3      2      2

  233MHz    66MHz         3x        1 &    2 &   1 &    2 &    1 &    1 &
                                     2     3      2     3      2      2

  266MHz    66MHz        3.5x       1 &    1 &   1 &    2 &    1 &    1 &
                                     2     2      2     3      2      2

  Note: Pins designated should be in the closed position.

                       CPU SPEED SELECTION (IDT C6)

    CPU      Clock    Multiplier    JP1    JP2   JP3    JP4    JP5   JP6
  speed     speed

  150MHz    75MHz         2x        2 &    1 &   1 &    1 &    2 &    2 &
                                     3     2      2     2      3      3

  180MHz    60MHz         3x        1 &    2 &   1 &    1 &    2 &    1 &
                                     2     3      2     2      3      2

  200MHz    66MHz         3x        1 &    2 &   1 &    2 &    1 &    1 &
                                     2     3      2     3      2      2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

    CPU      Clock    Multiplier    JP1    JP2   JP3    JP4    JP5   JP6
  speed     speed

  90MHz     60MHz        1.5x       1 &    1 &   1 &    1 &    2 &    1 &
                                     2     2      2     2      3      2

  100MHz    66MHz        1.5x       1 &    1 &   1 &    2 &    1 &    1 &
                                     2     2      2     3      2      2

  120MHz    60MHz        1.5x       1 &    1 &   1 &    1 &    2 &    1 &
                                     2     2      2     2      3      2

  133MHz    66MHz        1.5x       1 &    1 &   1 &    2 &    1 &    1 &
                                     2     2      2     3      2      2

  166MHz    66MHz       1.75x       2 &    2 &   1 &    2 &    1 &    1 &
                                     3     3      2     3      2      2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K6)

    CPU      Clock    Multiplier    JP1    JP2   JP3    JP4    JP5   JP6
  speed     speed

  166MHz    66MHz        2.5x       2 &    2 &   1 &    2 &    1 &    1 &
                                     3     3      2     3      2      2

  200MHz    66MHz         3x        1 &    2 &   1 &    2 &    1 &    1 &
                                     2     3      2     3      2      2

  233MHz    66MHz        3.5x       1 &    1 &   1 &    2 &    1 &    1 &
                                     2     2      2     3      2      2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU      Clock    Multiplier    JP1    JP2   JP3    JP4    JP5   JP6
  speed     speed

  90MHz     60MHz        1.5x       1 &    1 &   1 &    1 &    2 &    1 &
                                     2     2      2     2      3      2

  100MHz    66MHz        1.5x       1 &    1 &   1 &    2 &    1 &    1 &
                                     2     2      2     3      2      2

  120MHz    60MHz         2x        2 &    1 &   1 &    1 &    2 &    1 &
                                     3     2      2     2      3      2

  133MHz    66MHz         2x        2 &    1 &   1 &    2 &    1 &    1 &
                                     3     2      2     3      2      2

  150MHz    60MHz        2.5x       2 &    2 &   1 &    1 &    2 &    1 &
                                     3     3      2     2      3      2

  166MHz    66MHz        2.5x       2 &    2 &   1 &    2 &    1 &    1 &
                                     3     3      2     3      2      2

  200MHz    66MHz         3x        1 &    2 &   1 &    2 &    1 &    1 &
                                     2     3      2     3      2      2

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

    CPU      Clock    Multiplier    JP1    JP2   JP3    JP4    JP5   JP6
  speed     speed

  150MHz    60MHz        2.5x       2 &    2 &   1 &    1 &    2 &    1 &
                                     3     3      2     2      3      2

  166MHz    66MHz        2.5x       2 &    2 &   1 &    2 &    1 &    1 &
                                     3     3      2     3      2      2

  200MHz    66MHz         3x        1 &    2 &   1 &    2 &    1 &    1 &
                                     2     3      2     3      2      2

  233MHz    66MHz        3.5x       1 &    1 &   1 &    2 &    1 &    1 &
                                     2     2      2     3      2      2

  Note: Pins designated should be in the closed position.

      CPU VOLTAGE SELECTION (SINGLE)

       Voltage               JP11

        3.45v         Pins 1 & 2 closed

                    CPU VOLTAGE SELECTION (DUAL)

        Voltage                V core                  JP11

         3.45v                  2.0v           Pins 11 & 12 closed

         3.45v                  2.2v           Pins 11 & 12 closed

         3.45v                  2.5v           Pins 11 & 12 closed

         3.45v                  2.8v            Pins 7 & 8 closed

         3.45v                  2.9v            Pins 5 & 6 closed

         3.45v                  3.2v            Pins 9 & 10 closed

         3.45v                 3.52v            Pins 3 & 4 closed

