Muasien January 20, 2018 Share January 20, 2018 Hello all! Tonight I completed build my new PC. Motherboard X10DRG-Q, CPU Xeon E5-2658 v3, CPU Fan Noctua NH-U12DX i4. On first computer run, I noticed that CPU Fans work in variated speed. From 300 to 700 RPM. Repeats regularly in time. I have a problem? You comments please ) Link to comment Share on other sites More sharing options...
Bruno Mansi January 21, 2018 Share January 21, 2018 Most modern motherboards now have extensive monitoring abilities in their BIOS setup menus. I would go there and see what your fans are doing in response to the various temperatures reported for your CPU. The CPU fan should basically increase in speed when required by rising temperatures within the CPU. If the fan is just randomly changing speed for no reason it might indicate a problem. Link to comment Share on other sites More sharing options...
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