
ASUS COMPUTER INTERNATIONAL

P5A-B (REV. 1.03)

Device Type   Mainboard
Processor     CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/CX MII/IBM MII/

              AM K5/AM K6/Pentium/Pentium MMX
Processor     75/90/100/120/133/150/166/200/233/266/300/333/350MHz
Speed
Chip Set      ALI Aladdin V
Maximum       768MB (SDRAM supported)
Onboard Memory
Audio Chip SetC-media
Cache         512/1024KB
BIOS          Unidentified
Dimensions    305mm x 244mm
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,
              audio in  CD-ROMs (2), wake on LAN connector, audio
              connector

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                 Location

  AGP slot                 AGP        Audio in  CD-ROM          C9

  ATX power                ATX        Auxiliary in               C10
  connector                           connector

  Turbo LED             C1/pins 2 &   SMBus connector            C11
                            3

  Soft off power        C1/pins 6 &   Chassis intrusion          C12
  supply                    7         connector

  Reset switch          C1/pins 9 &   Wake on LAN                C13
                            10        connector

  Power LED &          C1/pins 11    Power fan                  C14
  keylock                   15

  Speaker              C1/pins 17 -   Serial port 1              CN1
                            20

  IR connector              C2        Serial port 2              CN2

  IDE interface LED         C3        Parallel port              CN3

  Digital audio             C4        Floppy drive               CN4
  connector                           interface

  Chassis fan power         C5        IDE interface 2            CN5

  Audio connector           C6        IDE interface 1            CN6

  Audio in  CD-ROM         C7        PS/2 mouse, USB,           CN7
                                      IR interface

  CPU fan power             C8        32-bit PCI slots        PC1  PC3

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            RTC              Open

      CMOS memory clear                       RTC             Closed

                      DIMM CONFIGURATION

      Size          Bank 0          Bank 1          Bank 2

      8MB         (1) 1M x 64        None            None

      16MB        (1) 1M x 64     (1) 1M x 64        None

      16MB        (1) 2M x 64        None            None

      24MB        (1) 1M x 64     (1) 1M x 64    (1) 1M x 64

      32MB        (1) 2M x 64     (1) 2M x 64        None

      32MB        (1) 4M x 64        None            None

      48MB        (1) 2M x 64     (1) 2M x 64    (1) 2M x 64

      64MB        (1) 4M x 64     (1) 4M x 64        None

      64MB        (1) 8M x 64        None            None

      96MB        (1) 4M x 64     (1) 4M x 64    (1) 4M x 64

     128MB        (1) 8M x 64     (1) 8M x 64        None

     128MB       (1) 16M x 64        None            None

     164MB       (1) 16M x 64     (1) 1M x 64        None

     144MB       (1) 16M x 64     (1) 1M x 64    (1) 1M x 64

     144MB       (1) 16M x 64     (1) 2M x 64        None

     160MB       (1) 16M x 64     (1) 2M x 64    (1) 2M x 64

     160MB       (1) 16M x 64     (1) 4M x 64        None

                  DIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

     192MB       (1) 16M x 64     (1) 4M x 64    (1) 4M x 64

     192MB       (1) 16M x 64     (1) 8M x 64        None

     192MB        (1) 8M x 64     (1) 8M x 64    (1) 8M x 64

     256MB       (1) 16M x 64     (1) 8M x 64    (1) 8M x 64

     256MB       (1) 16M x 64    (1) 16M x 64        None

     256MB       (1) 32M x 64        None            None

     264MB       (1) 32M x 64     (1) 1M x 64        None

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

     272MB       (1) 32M x 64     (1) 2M x 64        None

     288MB       (1) 32M x 64     (1) 2M x 64    (1) 2M x 64

     288MB       (1) 32M x 64     (1) 4M x 64        None

     320MB       (1) 32M x 64     (1) 4M x 64    (1) 4M x 64

     320MB       (1) 32M x 64     (1) 8M x 64        None

     384MB       (1) 32M x 64     (1) 8M x 64    (1) 8M x 64

     384MB       (1) 32M x 64    (1) 16M x 64        None

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

     512MB       (1) 32M x 64    (1) 16M x 64    (1) 16M x 64

     512MB       (1) 32M x 64    (1) 32M x 64        None

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

  Note: Board accepts SDRAM memory.

                      DIMM/AGP VOLTAGE CONFIGURATION

         Voltage                    VIO0                    VIO1

            3.5v                   Open              Pins 1 & 2 closed

             3.6v                   Open              Pins 2 & 3 closed

             3.8v            Pins 1 & 2 closed              Open

             4.0v            Pins 2 & 3 closed              Open

       CACHE CONFIGURATION

      Size            Bank 0

      512KB        (1) 64K x 64

       1MB        (1) 128K x 64

                      CPU SPEED SELECTION (CX 6X86L)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

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

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (CX 6X86L, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86L)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

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

  Note: Pins designated should be in the closed position.

                  CPU SPEED SELECTION (IBM 6X86L, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86MX)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

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

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

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

  Note: Pins designated should be in the closed position.

                  CPU SPEED SELECTION (CX 6X86MX, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

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

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

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

  Note: Pins designated should be in the closed position.

                     CPU SPEED SELECTION (IBM 6X86MX)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

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

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

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

  Note: Pins designated should be in the closed position.

                  CPU SPEED SELECTION (IBM 6X86MX, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

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

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

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

  Note: Pins designated should be in the closed position.

                       CPU SPEED SELECTION (CX MII)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

    300MHz        66MHz         3.5x        1 & 2      1 & 2       Open

    300MHz        75MHz          3x         1 & 2      2 & 3       Open

    333MHz        83MHz          3x         1 & 2      2 & 3       Open

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (CX MII, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

   300MHz      66MHz         3.5x       1 & 2    2 & 3    2 & 3    2 & 3

   300MHz      75MHz          3x        1 & 2    1 & 2    2 & 3    2 & 3

   333MHz      83MHz          3x        1 & 2    2 & 3    1 & 2    2 & 3

  Note: Pins designated should be in the closed position.

                       CPU SPEED SELECTION (IBM MII)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

    300MHz        66MHz         3.5x        1 & 2      1 & 2       Open

    300MHz        75MHz          3x         1 & 2      2 & 3       Open

    333MHz        83MHz          3x         1 & 2      2 & 3       Open

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (IBM MII, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

   300MHz      66MHz         3.5x       1 & 2    2 & 3    2 & 3    2 & 3

   300MHz      75MHz          3x        1 & 2    1 & 2    2 & 3    2 & 3

   333MHz      83MHz          3x        1 & 2    2 & 3    1 & 2    2 & 3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

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

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

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

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

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (AM K5, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

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

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

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

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K6)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

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

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

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

    266MHz        66MHz          4x         2 & 3      1 & 2      2 & 3

    300MHz        66MHz         4.5x        2 & 3      2 & 3      2 & 3

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (AM K6, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

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

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

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

   266MHz      66MHz          4x        1 & 2    2 & 3    2 & 3    2 & 3

   300MHz      66MHz         4.5x       1 & 2    2 & 3    2 & 3    2 & 3

  Note: Pins designated should be in the closed position.

                       CPU SPEED SELECTION (AM K6-2)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

    266MHz        66MHz          4x         2 & 3      1 & 2      2 & 3

    300MHz       100MHz          3x         1 & 2      2 & 3       Open

    333MHz        95MHz         3.5x        1 & 2      1 & 2       Open

    350MHz       100MHz         3.5x        1 & 2      1 & 2       Open

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (AM K6-2, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

   266MHz      66MHz          4x        1 & 2    2 & 3    2 & 3    2 & 3

   300MHz      100MHz         3x        1 & 2    1 & 2    1 & 2    2 & 3

   333MHz      95MHz         3.5x       2 & 3    1 & 2    1 & 2    2 & 3

   350MHz      100MHz        3.5x       1 & 2    1 & 2    1 & 2    2 & 3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (INTEL, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

  CPU speed       Clock      Multiplier      BF0        BF1        BF2
                  speed

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

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

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

  Note: Pins designated should be in the closed position.

                  CPU SPEED SELECTION (INTEL MMX, CONT)

  CPU speed     Clock     Multiplier     FS0      FS1      FS2      FS3
               speed

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU VOLTAGE SELECTION (SINGLE)

    Voltage         VID0           VID1          VID2            VID3

     3.4v        Pins 1 & 2     Pins 2 & 3     Pins 2 & 3     Pins 2 & 3
                   closed         closed        closed          closed

     3.5v        Pins 2 & 3     Pins 2 & 3     Pins 2 & 3     Pins 2 & 3
                   closed         closed        closed          closed

                       CPU VOLTAGE SELECTION (DUAL)

    Voltage         VID0           VID1          VID2            VID3

     2.2v        Pins 1 & 2     Pins 2 & 3     Pins 1 & 2     Pins 1 & 2
                   closed         closed        closed          closed

     2.8v        Pins 1 & 2     Pins 1 & 2     Pins 1 & 2     Pins 2 & 3
                   closed         closed        closed          closed

     2.9v        Pins 2 & 3     Pins 1 & 2     Pins 1 & 2     Pins 2 & 3
                   closed         closed        closed          closed

     3.2v        Pins 1 & 2     Pins 1 & 2     Pins 2 & 3     Pins 2 & 3
                   closed         closed        closed          closed

