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