
ACHITEC CORPORATION, LTD.

ACHI-152

Device Type    Mainboard
Processor      CX 6X86/IBM 6X86/CX 686MX/IBM 6X86MX/IDT/AM K5/

               AM K6/Pentium
Processor Speed90/100/120/133/150/166/180/200/233/266/300/333MHz
Chip Set       Intel
Video Chip Set None
Maximum Onboard256MB (EDO & SDRAM supported)
Memory
Maximum Video  None
Memory
Cache          512KB
BIOS           Award
Dimensions     220mm x 190mm
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), IR connector, USB connector,
               ATX power connector
NPU Options    None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power                ATX         Serial port               CN2
  connector

  Reset switch         C1/pins 1 & 2   Parallel port             CN3

  Power LED &          C1/pins 4 - 8   Floppy drive              CN4
  keylock                              interface

  Speaker              C1/pins 10 -    IDE interface             CN5
                            13

  Soft off power       C1/pins 15 &    IDE interface             CN6
  supply                    16

  IR connector         C1/pins 21 -    PS/2 mouse                CN7
                            25         interface

  Green PC connector   C1/pins 32 &    CPU fan power             J10
                            33

  Green PC LED         C1/pins 35 &    32-bit PCI slots       PC1  PC4
                            36

  IDE interface LED    C1/pins 38 &    USB connector             USB
                            39

  Serial port              CN1

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation             J9           Pins 1 & 2
                                                              closed

      CMOS memory clear                        J9           Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 12v           J11           Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5v            J11           Pins 2 & 3
                                                              closed

              SIMM CONFIGURATION

         Size                  Bank 0

          8MB                (2) 1M x 36

         16MB                (2) 2M x 36

         32MB                (2) 4M x 36

         64MB                (2) 8M x 36

         128MB              (2) 16M x 36

         256MB              (2) 32M x 36

            Note: Board accepts EDO memory.

             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

           DIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1

      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.

                  DIMM VOLTAGE CONFIGURATION

       Voltage                J1                   J3

        3.3v           Pins 2 & 3 closed   Pins 2 & 3 closed

         5v            Pins 1 & 2 closed   Pins 1 & 2 closed

      CACHE CONFIGURATION

      Size          Bank 0

     512KB       (1) 64K x 64

                           CPU SPEED SELECTION (CX 6X86)

   CPU     Clock   Multiplier   SW1/1    SW1/2    SW1/3    SW1/4    SW1/5    SW1/6
  speed    speed

  150MHz   60MHz       2x        Open    Closed   Closed   Closed   Open     Open

  166MHz   66MHz       2x       Closed    Open    Closed   Closed   Open     Open

  166MHz   60MHz      2.5x       Open    Closed   Closed   Closed   Closed   Open

  200MHz   75MHz       2x        Open    Closed    Open    Closed   Open     Open

                          CPU SPEED SELECTION (IBM 6X86)

   CPU     Clock   Multiplier    J5/1     J5/2     J5/3    J6/1     J6/2     J6/3
  speed    speed

  150MHz   60MHz       2x        Open    Closed   Closed   Closed   Open     Open

  166MHz   66MHz       2x       Closed    Open    Closed   Closed   Open     Open

  166MHz   60MHz      2.5x       Open    Closed   Closed   Closed   Closed   Open

  200MHz   75MHz       2x        Open    Closed    Open    Closed   Open     Open

                         CPU SPEED SELECTION (CX 6X86MX)

   CPU     Clock   Multiplier    J5/1     J5/2     J5/3    J6/1     J6/2     J6/3
  speed    speed

  233MHz   75MHz      2.5x       Open    Closed    Open    Closed   Closed   Open

  233MHz   66MHz       3x       Closed    Open    Closed   Open     Closed   Open

  266MHz   75MHz       3x        Open    Closed    Open    Open     Closed   Open

  266MHz   66MHz      3.5x      Closed    Open    Closed   Open     Open     Open

                         CPU SPEED SELECTION (IBM 6X86MX)

   CPU     Clock   Multiplier    J5/1     J5/2     J5/3    J6/1     J6/2     J6/3
  speed    speed

  233MHz   75MHz      2.5x       Open    Closed    Open    Closed   Closed   Open

  233MHz   66MHz       3x       Closed    Open    Closed   Open     Closed   Open

  266MHz   75MHz       3x        Open    Closed    Open    Open     Closed   Open

  266MHz   66MHz      3.5x      Closed    Open    Closed   Open     Open     Open

                           CPU SPEED SELECTION (IDT)

   CPU     Clock   Multiplier    J5/1    J5/2    J5/3    J6/1     J6/2     J6/3
  speed    speed

  166MHz   66MHz      2.5x      Closed   Open   Closed   Closed   Closed   Open

  200MHz   66MHz       3x       Closed   Open   Closed   Open     Closed   Open

                           CPU SPEED SELECTION (AM K5)

   CPU     Clock   Multiplier    J5/1     J5/2     J5/3    J6/1     J6/2     J6/3
  speed    speed

  90MHz    60MHz      1.5x       Open    Closed   Closed   Open     Open     Open

  100MHz   66MHz      1.5x      Closed    Open    Closed   Open     Open     Open

  120MHz   60MHz       2x        Open    Closed   Closed   Closed   Open     Open

  133MHz   66MHz       2x       Closed    Open    Closed   Closed   Open     Open

  150MHz   60MHz      2.5x       Open    Closed   Closed   Closed   Closed   Open

  166MHz   66MHz      2.5x      Closed    Open    Closed   Closed   Closed   Open

                           CPU SPEED SELECTION (AM K6)

   CPU     Clock   Multiplier    J5/1    J5/2    J5/3    J6/1     J6/2     J6/3
  speed    speed

  166MHz   66MHz      2.5x      Closed   Open   Closed   Closed   Closed   Open

  200MHz   66MHz       3x       Closed   Open   Closed   Open     Closed   Open

  233MHz   66MHz      3.5x      Closed   Open   Closed   Open     Open     Open

  266MHz   66MHz       4x       Closed   Open   Closed   Closed   Open     Closed

  300MHz   66MHz      4.5x      Closed   Open   Closed   Closed   Closed   Closed

  333MHz   66MHz       5x       Closed   Open   Closed   Open     Closed   Closed

                           CPU SPEED SELECTION (INTEL)

   CPU     Clock   Multiplier    J5/1     J5/2     J5/3    J6/1     J6/2     J6/3
  speed    speed

  90MHz    60MHz      1.5x       Open    Closed   Closed   Open     Open     Open

  100MHz   66MHz      1.5x      Closed    Open    Closed   Open     Open     Open

  120MHz   60MHz       2x        Open    Closed   Closed   Closed   Open     Open

  133MHz   66MHz       2x       Closed    Open    Closed   Closed   Open     Open

  150MHz   60MHz      2.5x       Open    Closed   Closed   Closed   Closed   Open

  166MHz   66MHz      2.5x      Closed    Open    Closed   Closed   Closed   Open

  200MHz   66MHz       3x       Closed    Open    Closed   Open     Closed   Open

                         CPU SPEED SELECTION (INTEL MMX)

   CPU     Clock   Multiplier    J5/1    J5/2    J5/3    J6/1     J6/2     J6/3
  speed    speed

  200MHz   66MHz       3x       Closed   Open   Closed   Open     Closed   Open

  233MHz   66MHz      3.5x      Closed   Open   Closed   Open     Open     Open

  266MHz   66MHz       4x       Closed   Open   Closed   Closed   Open     Closed

  300MHz   66MHz      4.5x      Closed   Open   Closed   Closed   Closed   Closed

  333MHz   66MHz       5x       Closed   Open   Closed   Open     Closed   Closed

                CPU VOLTAGE SELECTION

  Voltage    JP1/1      JP1/2      JP1/3      JP1/4

    2.0       Open       Open      Open       Open

    2.1      Closed      Open      Open       Open

    2.2       Open      Closed     Open       Open

    2.3      Closed     Closed     Open       Open

    2.4       Open       Open     Closed      Open

    2.5      Closed      Open     Closed      Open

    2.6       Open      Closed    Closed      Open

    2.7      Closed     Closed    Closed      Open

    2.8       Open       Open      Open      Closed

    2.9      Closed      Open      Open      Closed

    3.0       Open      Closed     Open      Closed

    3.1      Closed     Closed     Open      Closed

    3.2       Open       Open     Closed     Closed

    3.3      Closed      Open     Closed     Closed

    3.4       Open      Closed    Closed     Closed

    3.5      Closed     Closed    Closed     Closed

