Asus P7P55 LX JOOYON SI User Guide - Page 38

4. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit. P7P55 LX ATX12V EATXPWR +12V DC +12V DC +3 Volts +12 Volts +12 Volts +5V Standby Power OK PIN 1 GND +5 Volts GND +5 Volts GND +3 Volts +3 Volts PIN 1 GND +5 Volts +5 Volts +5 Volts -5 Volts GND GND GND PSON# GND -12 Volts +3 Volts GND GND P7P55 LX ATX power connectors • For a fully configured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12 V Specification 2.0 (or later version) and provides a minimum power of 400 W. • DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will not boot up. • If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details. 5. USB connectors (10-1 pin USB910, USB1112, USB1314) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480 Mbps connection speed. USB+5V USB_P10USB_P10+ GND NC USB+5V USB_P12USB_P12+ GND NC USB+5V USB_P14USB_P14+ GND NC P7P55 LX USB1314 PIN 1 USB1112 PIN 1 USB910 PIN 1 USB+5V USB_P9USB_P9+ GND USB+5V USB_P11USB_P11+ GND USB+5V USB_P13USB_P13+ GND P7P55 LX USB2.0 connectors Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB module cable is purchased separately. 1-26 Chapter 1: Product introduction