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RM850 PSU 0 RPM Fan Mode - Question


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I've just installed a new RM850 PSU and have what may be a stupid question!


I know it has the 0 RPM mode, but is it normal for the fan to not come on at all during boot?


I assumed there would be some sort of initial fan check and then it would switch off. However, when I power the machine on there is an audible click from the PSU and the fan flinches slightly, but it never spins. It's been in for about 40 minutes and everything seems OK power wise but the fan hasn't moved - I'm a little concerned!



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