so on my psu the fan is not spinning , is there a way to test to make sure it works?
stop spamming topics please. read your manual please. RM series are silence optimized meaning the fan only spins on very high load. in fact, the fan starts up too late and they end up running a bit warm. AFAIK there is no way to test the fan except to load the psu beyond 75% and see if it comes on. sorry but before making these many, many topics you should have made one asking what psu to buy and any number of people would have told you not to buy the RM650. maybe take these ever increasing questions to the corsair forums?