Asus Vintage-PH1 Vintage-PH1 User''s Manual for English E1943 - Page 60

7 . ATX power connectors (24-pin EATXPWR1, 4-pin ATX12V1) These connectors are for ATX power supply plugs. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit. ® ATX power connectors ATX12V1 EATXPWR1 GND +12V DC GND +3 Volts +12V DC +12 Volts +12 Volts +5V Standby Power OK Ground +5 Volts Ground +5 Volts Ground +3 Volts +3 Volts Ground +5 Volts +5 Volts +5 Volts -5 Volts Ground Ground Ground PSON# Ground -12 Volts +3 Volts Important notes on the motherboard power requirements • Do not forget to connect the 4-pin ATX +12 V power plug; otherwise, the system will not boot up. • To power the motherboard, it is recommended that you use an ATX 12 V Specification 2.0 power supply unit (PSU) with a minimum 350 W power rating. This PSU type has a 24-pin and 4-pin ATX power plugs. • If you intend to use a PSU with a 20-pin and 4-pin power plugs, make sure that the 20-pin power plug can provide at least 15A on +12 V and that the PSU has a minimum power rating of 350 W. The system may become unstable or may not boot up if the power is inadequate. We do not, however, recommend the use of a 20-pin PSU. • You must install a PSU with a higher power rating if you intend to install additional devices. 4-10 Chapter 4: Motherboard info