
ADVANCED INTEGRATION RESEARCH, INC.

55TX-I

Processor       CX M1/CX M2/AM K5/AM K6/Pentium
Processor Speed 90/100/120/133/150/166/180/200/233/266/300/333/ 366MHz
Chip Set        Intel
Video Chip Set  None
Maximum Onboard 256MB (EDO supported)
Memory
Maximum Video   None
Memory
Cache           256/512KB
BIOS            Award
Dimensions      304mm x 215mm
I/O Options     32-bit PCI slots (4), floppy drive interface, green PC
                connector, IDE interfaces (2), parallel port, PS/2 mouse
                port, serial ports (2), IR connector, USB connector, ATX
                power connector
NPU Options     None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       IR connector               J1B

  Serial port 2              CN1       Soft off power supply      J1C

  Parallel port              CN2       Green PC connector         J1D

  PS/2 mouse port            CN3       Speaker                    J2A

  Serial port 1              CN4       Reset switch               J2B

  Floppy drive interface     CN5       Power LED & keylock        J2C

  IDE interface 2            CN6       Turbo LED                  J2D

  IDE interface 1            CN7       32-bit PCI slots         PC1  PC4

  IDE interface LED          J1A       USB connector              USB

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     CMOS memory normal operation         JP11        Pins 2 & 3 closed

      CMOS memory clear                    JP11        Pins 1 & 2 closed

      Flash BIOS programming disabled      JP19        Pins 1 & 2 closed

      Flash BIOS programming enabled       JP19        Pins 2 & 3 closed

     Factory configured - do not          SW1/6         Unidentified
      alter

                          DIMM/DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2         Bank 3

     4MB         (2) 512K x        None          None           None
                     36

     8MB        (2) 1M x 36        None          None           None

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

     16MB       (2) 2M x 36        None          None           None

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

     16MB       (2) 1M x 36     (2) 1M x 36      None           None

     16MB       (2) 1M x 36        None       (1) 1M x 64       None

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

     24MB           None        (2) 2M x 36   (1) 1M x 64       None

     32MB       (2) 4M x 36        None          None           None

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

     32MB       (2) 2M x 36        None       (1) 2M x 64       None

     40MB       (2) 4M x 36     (2) 1M x 36      None           None

     40MB       (2) 4M x 36        None       (1) 1M x 64       None

     48MB       (2) 2M x 36        None       (1) 4M x 64       None

     48MB       (2) 4M x 36     (2) 2M x 36      None           None

     48MB       (2) 4M x 36        None       (1) 2M x 64       None

     64MB       (2) 8M x 36        None          None           None

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

     64MB       (2) 4M x 36     (2) 4M x 36      None           None

                      DIMM/DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     64MB        (2) 4M x 36       None       (1) 4M x 64        None

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

     72MB        (2) 8M x 36   (2) 1M x 36        None           None

     72MB        (2) 8M x 36       None       (1) 1M x 64        None

     80MB           None       (2) 2M x 36    (1) 8M x 64        None

     80MB        (2) 8M x 36   (2) 2M x 36        None           None

     96MB        (2) 4M x 36       None       (1) 8M x 64        None

     96MB        (2) 8M x 36   (2) 4M x 36        None           None

     96MB           None       (2) 8M x 36    (1) 4M x 64        None

     128MB       (2) 8M x 36       None       (1) 8M x 64        None

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

     128MB       (2) 8M x 36   (2) 8M x 36        None           None

     128MB       (2) 16M x 36      None           None           None

     136MB       (2) 16M x 36  (2) 1M x 36        None           None

     136MB       (2) 16M x 36      None       (1) 1M x 64        None

     144MB       (2) 16M x 36      None       (1) 2M x 64        None

     144MB       (2) 16M x 36  (2) 2M x 36        None           None

     160MB       (2) 16M x 36  (2) 4M x 36        None           None

     160MB       (2) 16M x 36      None       (1) 4M x 64        None

     192MB       (2) 16M x 36      None       (1) 8M x 64        None

     192MB       (2) 16M x 36  (2) 8M x 36        None           None

     256MB       (2) 16M x 36  (2) 16M x 36       None           None

  Note: Board accepts EDO memory.

      CACHE CONFIGURATION

      Size          Bank 0

     256KB       (2) 32K x 32

     512KB       (2) 64K x 32

                      CPU SPEED SELECTION (CYRIX M1)

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

  133MHz    55MHz        2x        Off      On     Off      Off      On

  150MHz    60MHz        2x        Off      On     Off      On       On

  166MHz    66MHz        2x        Off      On      On      On       On

  200MHz    75MHz        2x        Off      On      On      Off      On

                      CPU SPEED SELECTION (CYRIX M1)

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

  133MHz    55MHz        2x        Off      On     Off      Off      On

  150MHz    60MHz        2x        Off      On     Off      On       On

  166MHz    66MHz        2x        Off      On      On      On       On

  200MHz    75MHz        2x        Off      On      On      Off      On

                      CPU SPEED SELECTION (CYRIX M2)

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

  166MHz    66MHz       2.5x       Off     Off      On      On       On

  200MHz    66MHz        3x        On      Off      On      On       On

  233MHz    66MHz       3.5x       On       On      On      On       On

                       CPU SPEED SELECTION (AMD K5)

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

  90MHz     60MHz       1.5x       On       On     Off      On       On

  100MHz    66MHz       1.5x       On       On      On      On       On

  120MHz    60MHz        2x        Off      On     Off      On       On

  133MHz    66MHz        2x        Off      On      On      On       On

  150MHz    60MHz       2.5x       Off     Off     Off      On       On

  166MHz    66MHz       2.5x       Off     Off      On      On       On

                       CPU SPEED SELECTION (AMD K6)

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

  166MHz    66MHz       2.5x       Off     Off      On      On       On

  200MHz    66MHz        3x        On      Off      On      On       On

  233MHz    66MHz       3.5x       On       On      On      On       On

  266MHz    66MHz        4x        Off      On      On      On      Off

  300MHz    66MHz       4.5x       Off     Off      On      On      Off

  333MHz    66MHz        5x        On      Off      On      On      Off

  366MHz    66MHz       5.5x       On       On      On      On      Off

                        CPU SPEED SELECTION (INTEL)

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

  90MHz     60MHz       1.5x       On       On     Off      On       On

  100MHz    66MHz       1.5x       On       On      On      On       On

  120MHz    60MHz        2x        Off      On     Off      On       On

  133MHz    66MHz        2x        Off      On      On      On       On

  150MHz    60MHz       2.5x       Off     Off     Off      On       On

  166MHz    66MHz       2.5x       Off     Off      On      On       On

  180MHz    60MHz        3x        On      Off     Off      On       On

  200MHz    66MHz        3x        On      Off      On      On       On

  233MHz    66MHz       3.5x       On       On      On      On       On

                        CPU VOLTAGE SELECTION

              Voltage                             JP3

               2.8v                               Open

               2.9v                        Pins 1 & 2 closed

               3.0v                        Pins 3 & 4 closed

               3.1v                    Pins 1 & 2, 3 & 4, closed

               3.2v                        Pins 5 & 6 closed

               3.3v                     Pins 1 & 2, 5 & 6 closed

               3.4v                     Pins 3 & 4, 5 & 6 closed

               3.5v                 Pins 1 & 2, 3 & 4, 5 & 6 closed

