
ASUS COMPUTER INTERNATIONAL

P/I-P55TP4N (REV. 2.0)

Device Type          Mainboard
Processor            Pentium
Processor Speed      75/90/100/120/133/150/166MHz
Chip Set             Intel 430FX
Maximum Onboard      128MB (EDO supported)
Memory
Cache                256/512KB
BIOS                 Unidentified
Video Chip Set       None
I/O Options          32-bit PCI slots (4), floppy drive interface, green
                     PC connector, IDE interface (2), parallel port, PS/2
                     mouse interface, serial ports (2), IR connector,
                     MediaBus slot, cache slot

[Image]

                                CONNECTIONS

  Purpose               Location      Purpose                 Location

  Serial port 1            CN1        Reset switch          CN9/pins 9 &
                                                                 10

  Serial port 2            CN2        Power LED &          CN9/pins 11-15
                                      keylock

  Parallel port            CN3        Speaker              CN9/pins 17-20

  IDE interface 1          CN4        IR connector              JP31

  IDE interface 2          CN5        IDE interface LED         JP17

  Floppy drive             CN6        32-bit PCI slots       PC1 - PC4
  interface

  PS/2 mouse               CN7        Cache slot                SL1
  interface

  Turbo LED            CN9/pins 2 &   MediaBus Slot             SL2
                            3

  Green PC             CN9/pins 4 &
  connector                 5

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     On board I/O enabled                    JP4           Pins 1 & 2
                                                              closed

      On board I/O disabled                   JP4           Pins 2 & 3
                                                              closed

      Flash BIOS write protect enabled        JP5           Pins 2 & 3
                                                              closed

     Flash BIOS write protect disabled       JP5           Pins 1 & 2
                                                              closed

     PS/2 mouse disabled                     JP7           Pins 2 & 3
                                                              closed

      PS/2 mouse enabled                      JP7           Pins 1 & 2
                                                              closed

     CMOS memory normal operation            JP13             Open

      CMOS memory clear                       JP13            Closed

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (2)1MB x 32      None

     16MB        (2)1MB x 32   (2)1MB x 32

     16MB        (2)2MB x 32      None

     24MB        (2)2MB x 32   (2)1MB x 32

     32MB        (2)2MB x 32   (2)2MB x 32

     32MB        (2)4MB x 32      None

     40MB        (2)4MB x 32   (2)1MB x 32

     48MB        (2)4MB x 32   (2)2MB x 32

     64MB        (2)4MB x 32   (2)4MB x 32

     64MB        (2)8MB x 32      None

     72MB        (2)8MB x 32   (2)1MB x 32

     80MB        (2)8MB x 32   (2)2MB x 32

     96MB        (2)8MB x 32   (2)4MB x 32

     128MB       (2)8MB x 32   (2)8MBx 32

                       CACHE CONFIGURATION

    Size               Bank 0                     SL1

  256KB (A)         (2) 32K x 32             Not installed

  256KB (B)             None            256KB module installed

  512KB (A)         (2) 32K x 32        256KB module installed

  512KB (B)         (2) 64K x 32             Not installed

  512KB (C)             None            512KB module installed

                        CACHE JUMPER CONFIGURATION

               Size                                 JP16

                256KB                        Pins 2 & 3 closed

                 512KB                        Pins 1 & 2 closed

                        CPU SPEED SELECTION (INTEL)

  Speed     Clock    Multiplier    JP14      JP15    JP26    JP27   JP28
            speed

  75MHz     50MHz       1.5x       Open      Open     1 &    2 &    2 & 3
                                                      2       3

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

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

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

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

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

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

  Note : Numbers designate pins that should be closed.

                           CPU VOLTAGE SELECTION

         Voltage                JP22             JP23            JP24

        3.3V - 3.465V         Closed            Open            Open

          3.4V - 3.6V           Open            Closed           Open

