
ASUS COMPUTER INTERNATIONAL

P/I-P55TP4XE REV 2.1

Processor            Pentium
Processor Speed      75/90/100/120/133MHz
Chip Set             SMC
Max. Onboard DRAM    128MB
Cache                256/512KB
BIOS                 Award
Dimensions           254mm x 218mm
I/O Options          PS/2 mouse port, parallel port, serial ports (2),
                     32-bit VESA local bus slots (4), green PC connector,
                     floppy drive interface, IDE interfaces (2), Media
                     slot, cache slot
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                 Location

  Serial port 1            CN1        Power LED &           JP16 pins 6 -
                                      keylock                    10

  Serial port 2            CN2        Reset switch          JP16 pins 11
                                                                & 12

  Parallel port            CN3        Green PC connector    JP16 pins 16
                                                                & 17

  Floppy drive             CN4        Turbo LED             JP16 pins 18
  interface                                                     & 19

  IDE interface 1          CN5        IDE interface LED         JP17

  IDE interface 2          CN6        32-bit PCI slots       PC1 - PC4

  PS/2 mouse               CN7        Media slot                SL1
  interface

  Speaker               JP16 pins 1   External cache            SL2
                           - 4        card

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

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

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

     PS/2 mouse disabled                     JP7           pins 2 & 3
                                                              closed

      PS/2 mouse enabled                      JP7           pins 1 & 2
                                                              closed

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (2) 1M x 36      NONE

      8MB           NONE       (2) 1M x 36

     16MB        (2) 2M x 36      NONE

     16MB           NONE       (2) 2M x 36

     16MB        (2) 1M x 36   (2) 1M x 36

     24MB        (2) 1M x 36   (2) 2M x 36

     24MB        (2) 2M x 36   (2) 1M x 36

     32MB        (2) 4M x 36      NONE

     32MB           NONE       (2) 4M x 36

     32MB        (2) 2M x 36   (2) 2M x 36

     40MB        (2) 1M x 36   (2) 4M x 36

     40MB        (2) 4M x 36   (2) 1M x 36

     48MB        (2) 2M x 36   (2) 4M x 36

     48MB        (2) 4M x 36   (2) 2M x 36

     64MB        (2) 8M x 36      NONE

     64MB           NONE       (2) 8M x 36

     64MB        (2) 4M x 36   (2) 4M x 36

     72MB        (2) 1M x 36   (2) 8M x 36

     72MB        (2) 8M x 36   (2) 1M x 36

     80MB        (2) 2M x 36   (2) 8M x 36

     80MB        (2) 8M x 36   (2) 2M x 36

     96MB        (2) 4M x 36   (2) 8M x 36

     96MB        (2) 8M x 36   (2) 4M x 36

     128MB       (2) 8M x 36   (2) 8M x 36

                            CACHE CONFIGURATION

     Size         Bank 0       Bank 1          TAG             SL2

     256KB       (4) 32K x    (4) 32K x    (1) 8K, 16K,        NONE
                    8             8          32K x 8

     256KB         NONE         NONE          NONE        Card installed

     512KB       (4) 64K x    (4) 64K x    (1) 16K, 32K        NONE
                    8             8            x 8

     512KB         NONE         NONE          NONE        Card installed

        CACHE JUMPER CONFIGURATION

        Size                 JP12

        256KB         pins 2 & 3 closed

        512KB         pins 1 & 2 closed

                          CPU SPEED CONFIGURATION

      Speed              JP26              JP27               JP28

      75MHz           pins 1 & 2         pins 2 & 3         pins 2 & 3
                        closed            closed             closed

      90MHz           pins 2 & 3         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

      100MHz          pins 2 & 3         pins 1 & 2         pins 2 & 3
                        closed            closed             closed

      120MHz          pins 2 & 3         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

      133MHz          pins 2 & 3         pins 1 & 2         pins 2 & 3
                        closed            closed             closed

   CPU SPEED CONFIGURATION

  Speed     JP14      JP15

   1.5x     Open      Open

    2x      Open     Closed

   2.5x     Closed   Closed

    3x      Closed    Open

      VOLTAGE REGULATOR CONFIGURATION

  Setting     JP22       JP23      JP24

  STD/VR     Closed      Open      Open

    VRE       Open      Closed     Open

                            BIOS CONFIGURATION

         Setting                   JP5                      JP6

    Normal operation        pins 1 & 2 closed        pins 2 & 3 closed

  Programming operation     pins 2 & 3 closed        pins 2 & 3 closed

                         SERIAL PORT CONFIGURATION

      Setting              JP1               JP2               JP3

   COM2 enabled         pins 1 & 2        pins 1 & 2      pins 1 & 2, 3 &
                         closed            closed            4 closed

   Infrared (IR)        pins 2 & 3        pins 2 & 3        pins 2 & 3
                         closed            closed             closed

