ASUS COMPUTER INTERNATIONAL P/I-P55TP4XE (REV. 1.21) Processor Pentium Processor Speed 75/90/100/120/133/150/166/180/200MHz Chip Set Intel Video Chip Set None Maximum Onboard 128MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), cache slot, IR connector, VRM connector, MediaBus slot NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Serial port 1 CN1 Power LED & CN8 pins 11 - keylock 15 Serial port 2 CN2 Speaker CN8 pins 17 - 20 Parallel port CN3 IDE interface LED JP17 Floppy drive CN4 Chassis fan power JP30 interface IDE interface 1 CN5 IR connector JP31 IDE interface 2 CN6 32-bit PCI slots PC1 - PC4 PS/2 mouse CN7 MediaBus slot SL1 interface Turbo LED CN8 pins 2 & Cache slot SL2 3 Green PC connector CN8 pins 4 & VRM connector VRM 5 Reset switch CN8 pins 9 & 10 USER CONFIGURABLE SETTINGS Function Label Position » On board multi I/O enabled JP4 Pins 1 & 2 closed On board multi 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 » CMOS memory normal operation JP13 Open CMOS memory clear JP13 Closed Note: If the multi I/O chip is a UM8669F, JP4 is not used. It is enabled or disabled through the BIOS. DRAM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 32 None 16MB (2) 2M x 32 None 16MB (2) 1M x 32 (2) 1M x 32 24MB (2) 2M x 32 (2) 1M x 32 32MB (2) 4M x 32 None 32MB (2) 2M x 32 (2) 2M x 32 40MB (2) 4M x 32 (2) 1M x 32 48MB (2) 4M x 32 (2) 2M x 32 64MB None (2) 8M x 32 64MB (2) 4M x 32 (2) 4M x 32 72MB (2) 8M x 32 (2) 1M x 32 80MB (2) 8M x 32 (2) 2M x 32 96MB (2) 8M x 32 (2) 4M x 32 128MB (2) 8M x 32 (2) 8M x 32 Note: Board accepts EDO memory. Board also accepts x 36 SIMMs. Banks are interchangeable. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG SL2 256KB (A) (4) 32K x (4) 32K x (1) 8K/32K x Not installed 8 8 8 256KB (B) None None None 256KB module Installed 512KB (A) (4) 64K x (4) 64K x (1) 8K/32K x Not installed 8 8 8 512KB (B) None None None 512KB module Installed CACHE JUMPER CONFIGURATION Size JP12 256KB (A) Pins 2 & 3 closed 256KB (B) Open 512KB (A) Pins 1 & 2 closed 512KB (B) Open CACHE CONFIGURATION Type JP16 » Asynchronous cache enabled Pins 1 & 2 closed Asynchronous cache disabled Pins 2 & 3 closed CACHE VOLTAGE CONFIGURATION Voltage JP8 JP9 JP10 JP11 Mixed voltage Closed Closed Open Open 3.3v Open Open Closed Closed CPU SPEED SELECTION CPU Clock Multiplier JP14 JP15 JP26 JP27 JP28 speed 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 180MHz 60MHz 3x Closed Open 2 & 2 & 1 & 2 3 3 200MHz 66MHz 3x Closed Open 2 & 1 & 2 & 3 3 2 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION Voltage JP22 JP23 JP24 3.3v (STD/VR) Closed Open Open 3.4v - 3.6v (VRE) Open Closed Open CPU VOLTAGE SELECTION Setting JP18 JP19 JP20 JP21 VRM not Closed Closed Closed Closed installed VRM installed Open Open Open Open Note: JP18 - JP21 are located on the VRM module. SERIAL PORT 2 SELECTION Setting JP1 JP2 » Used as COM2 Pins 1 & 2 closed Pins 1 & 2 closed Used as IR connector Pins 2 & 3 closed Pins 2 & 3 closed FLASH BIOS SELECTION Setting JP5 JP6 » Flash BIOS normal Pins 1 & 2 closed Pins 2 & 3 closed operation Flash BIOS programming Pins 2 & 3 closed Pins 2 & 3 closed enabled