Tommunist

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I just recieved a case which included a powersupply. Is it normal that the power supply's fans do not come on when I plug it in if I don't have anything plugged into the power supply?

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Tommunist

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so what you are saying is that until I have the mobo hooked up the powersupply won't turn on and hence the fans on the power supply won't turn on? (I really appreciate your help, thanks.)

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HammerBot

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Yes, perfectly normal. Many kinds of switched mode power supplies require a minimum load to function properly. The PC power supply is an SMPS and contains a circuit that senses the load. If there is no load, the power supply does not start.