
COMPULINK RESEARCH, INC.

PT5-AX

Processor           Pentium
Processor Speed     75/90/100/120/133/150/166/180/200MHz
Chip Set            Intel
Video Chip Set      None
Maximum Onboard     256MB (EDO supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB
BIOS                Unidentified
Dimensions          305mm x 244mm
I/O Options         32-bit PCI slots (4), floppy drive interface, IDE
                    interfaces (2), parallel port, PS/2 mouse port, serial
                    ports (2), cache slot, IR connector, ATX power
                    connector, extended PCI slot
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       IDE interface 1            CN7

  Serial port                CN1       Chassis fan power          FAN

  Parallel port              CN2       Front panel connector      FPC

  PS/2 mouse port            CN3       IR connector               IR1

  Serial port                CN4       32-bit PCI slots         PC1  PC4

  Floppy drive interface     CN5       Extended PCI slot          SL1

  IDE interface 2            CN6       Cache slot                 SL2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     On board I/O enabled                    JP16          Pins 1 & 2
                                                              closed

      On board I/O disabled                   JP16          Pins 2 & 3
                                                              closed

     CMOS memory normal operation            JP19             Open

      CMOS memory clear                       JP19            Closed

              DRAM 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) 8M x 36    (2) 8M x 36

     128MB        (2) 16M x 36       None

     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.

                            CACHE CONFIGURATION

         Size                  Bank 0                     SL2

         256KB              (2) 32K x 32             Not installed

         512KB              (4) 32K x 8          256KB module installed

  Note: Bank 0 is factory installed and is not configurable. The location
  is unidentified.

        CACHE JUMPER CONFIGURATION

        Size                 JP1

        256KB         Pins 1 & 2 closed

        512KB         Pins 2 & 3 closed

                            CPU SPEED SELECTION

    CPU       Clock    Multiplier      JP12      JP13      JP17     JP18
   speed     speed

   75MHz     50MHz        1.5x         Open      Open      2 & 3   2 & 3

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

                Voltage                                JP4

              3.3v  3.465v                    Pins 2 & 3 closed

                3.4v  3.6v                     Pins 1 & 2 closed

                           DMA CHANNEL SELECTION

         Channel                   JP22                     JP23

              1             Pins 2 & 3 closed        Pins 2 & 3 closed

             3             Pins 1 & 2 closed        Pins 1 & 2 closed

                          SERIAL PORT 2 SELECTION

           Setting                     JP14                  JP15

          Used as COM2         Pins 1 & 2 closed      Pins 1 & 2 closed

       Used as IR connector     Pins 2 & 3 closed      Pins 2 & 3 closed

