
ACHITEC CORPORATION, LTD.

ACHI-156

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

                  AM K6/Pentium
Processor Speed   120/133/150/166/180/200/233/266/300/333MHz
Chip Set          VIA
Video Chip Set    None
Maximum Onboard   1GB (EDO & SDRAM supported)
Memory
Maximum Video     None
Memory
Cache             512KB
BIOS              Award
Dimensions        220mm x 220mm
I/O Options       32-bit PCI slots (3), floppy drive interface, IDE
                  interfaces (2), parallel port, PS/2 mouse interface,
                  serial ports (2), IR connector, USB connector, ATX power
                  connector, AGP slot
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  AGP slot                   AGP       IDE interface LED          J14

  ATX power connector        ATX       Soft off power supply      J15

  Serial port                CN1       Reset switch               J16

  Serial port                CN2       Green PC LED               J17

  Parallel port              CN3       Turbo switch               J18

  Floppy drive interface     CN4       Power LED & keylock        J19

  IDE interface              CN5       Speaker                    J20

  IDE interface              CN6       32-bit PCI slots         PC1 - PC3

  PS/2 mouse interface       CN7       USB connector              USB

  IR connector                J3

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           C1           Unidentified
      alter

     Factory configured - do not           C2           Unidentified
      alter

     Factory configured - do not           C3           Unidentified
      alter

     Factory configured - do not           C4           Unidentified
      alter

      Power supply select AT                J11        Pins 1 & 2 closed

      Power supply select ATX               J11        Pins 2 & 3 closed

     CMOS memory normal operation          J12        Pins 1 & 2 closed

      CMOS memory clear                     J12        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

      512MB          (2) 64M 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

      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) 32M x 64       None

     256MB        (1) 16M x 64   (1) 16M x 64

     264MB        (1) 32M x 64   (1) 1M x 64

     272MB        (1) 32M x 64   (1) 2M x 64

     288MB        (1) 32M x 64   (1) 4M x 64

     320MB        (1) 32M x 64   (1) 8M x 64

     384MB        (1) 32M x 64   (1) 16M x 64

     512MB        (1) 32M x 64   (1) 32M x 64

     512MB        (1) 64M x 64       None

     520MB        (1) 64M x 64   (1) 1M x 64

     528MB        (1) 64M x 64   (1) 2M x 64

     544MB        (1) 64M x 64   (1) 4M x 64

     576MB        (1) 64M x 64   (1) 8M x 64

     640MB        (1) 64M x 64   (1) 16M x 64

     768MB        (1) 64M x 64   (1) 32M x 64

     1024MB       (1) 64M x 64   (1) 64M x 64

  Note: Board accepts SDRAM memory.

                  DIMM VOLTAGE CONFIGURATION

       Voltage                J6                   J7

        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   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  150MHz   60MHz        2x        On    Off     Off    Off    On      On

  166MHz   66MHz        2x        On    Off     Off    On     Off     On

  166MHz   60MHz       2.5x       On     On     Off    Off    On      On

  200MHz   75MHz        2x        On    Off     Off    Off    On     Off

                      CPU SPEED SELECTION (IBM 6X86)

   CPU      Clock   Multiplier   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  150MHz   60MHz        2x        On    Off     Off    Off    On      On

  166MHz   66MHz        2x        On    Off     Off    On     Off     On

  166MHz   60MHz       2.5x       On     On     Off    Off    On      On

  200MHz   75MHz        2x        On    Off     Off    Off    On     Off

                      CPU SPEED SELECTION (CX 6X86MX)

   CPU      Clock   Multiplier   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  233MHz   75MHz       2.5x       On     On     Off    Off    On     Off

  233MHz   66MHz        3x       Off     On     Off    On     Off     On

  266MHz   75MHz        3x       Off     On     Off    Off    On     Off

  266MHz   66MHz       3.5x      Off    Off     Off    On     Off     On

                     CPU SPEED SELECTION (IBM 6X86MX)

   CPU      Clock   Multiplier   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  233MHz   75MHz       2.5x       On     On     Off    Off    On     Off

  233MHz   66MHz        3x       Off     On     Off    On     Off     On

  266MHz   75MHz        3x       Off     On     Off    Off    On     Off

  266MHz   66MHz       3.5x      Off    Off     Off    On     Off     On

                         CPU SPEED SELECTION (IDT)

   CPU      Clock   Multiplier   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  180MHz   60MHz        3x       Off     On     Off    Off    On      On

  200MHz   66MHz        3x       Off     On     Off    On     Off     On

                        CPU SPEED SELECTION (AM K5)

   CPU      Clock   Multiplier   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  120MHz   60MHz        2x        On    Off     Off    Off    On      On

  133MHz   66MHz        2x        On    Off     Off    On     Off     On

  150MHz   60MHz       2.5x       On     On     Off    Off    On      On

  166MHz   66MHz       2.5x       On     On     Off    On     Off     On

                        CPU SPEED SELECTION (AM K6)

   CPU      Clock   Multiplier   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  166MHz   66MHz       2.5x       On     On     Off    On     Off     On

  180MHz   60MHz        3x       Off     On     Off    Off    On      On

  200MHz   66MHz        3x       Off     On     Off    On     Off     On

  233MHz   66MHz       3.5x      Off    Off     Off    On     Off     On

  266MHz   66MHz        4x        On     On     On     On     Off     On

  300MHz   66MHz       4.5x       On     On     On     On     Off     On

  333MHz   66MHz        5x       Off     On     On     On     Off     On

                        CPU SPEED SELECTION (INTEL)

   CPU      Clock   Multiplier   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  120MHz   60MHz        2x        On    Off     Off    Off    On      On

  133MHz   66MHz        2x        On    Off     Off    On     Off     On

  150MHz   60MHz       2.5x       On     On     Off    Off    On      On

  166MHz   66MHz       2.5x       On     On     Off    On     Off     On

  180MHz   60MHz        3x       Off     On     Off    Off    On      On

  200MHz   66MHz        3x       Off     On     Off    On     Off     On

                      CPU SPEED SELECTION (INTEL MMX)

   CPU      Clock   Multiplier   S1/1   S1/2    S1/3   S1/4   S1/5   S1/6
  speed    speed

  180MHz   60MHz        3x       Off     On     Off    Off    On      On

  200MHz   66MHz        3x       Off     On     Off    On     Off     On

  233MHz   66MHz       3.5x      Off    Off     Off    On     Off     On

  266MHz   66MHz        4x        On     On     On     On     Off     On

  300MHz   66MHz       4.5x       On     On     On     On     Off     On

  333MHz   66MHz        5x       Off     On     On     On     Off     On

                CPU VOLTAGE SELECTION

  Voltage    SW1/1      SW1/2      SW1/3      SW1/4

    2.0       Off        Off        Off        Off

    2.1        On        Off        Off        Off

    2.2       Off         On        Off        Off

    2.3        On         On        Off        Off

    2.4       Off        Off        On         Off

    2.5        On        Off        On         Off

    2.6       Off         On        On         Off

    2.7        On         On        On         Off

    2.8       Off        Off        Off        On

    2.9        On        Off        Off        On

    3.0       Off         On        Off        On

    3.1        On         On        Off        On

    3.2       Off        Off        On         On

    3.3        On        Off        On         On

    3.4       Off         On        On         On

    3.5        On         On        On         On

