Asus P5B-MX P5B-MX user's manual - Page 48
ATX power connectors 24-pin EATXPWR, 4-pin ATX12V
UPC - 610839140558
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10. 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. ATX12V EATXPWR R P5B-MX/WiFi-AP +12V DC +12V DC +3 Volts GND GND +12 Volts +12 Volts +5V Standby Power OK Ground +5 Volts Ground +5 Volts Ground +3 Volts P5B-MX/WiFi-AP ATX Power Connector +3 Volts Ground +5 Volts +5 Volts +5 Volts -5 Volts Ground Ground Ground PSON# Ground -12 Volts +3 Volts • 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 ATX12V power plug; otherwise, the system will not boot. • Use of a PSU with a higher power output is recommended when configuring a system with more power-consuming devices. The system may become unstable or may not boot up if the power is inadequate. • The ATX 12 V Specification 2.0-compliant (400W) PSU has been tested to support the motherboard power requirements. 1-36 Chapter 1: Product introduction