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CPU fan keeps turning on and off


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#1 Geo_h

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Posted 19 September 2015 - 05:52 AM

Since I upgraded to Windows 10 my CPU fan keeps turning on and off. My Intel i3 LGA 1156 CPU will go above 160F if I view a video and sometimes the CPU fan will kick on and sometimes it will not. I have a Intel utility program that monitors the Tempatures, fans and voltages and everything else is normal. Could this be the FAN or the motherboard malfunctioning?



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#2 ranchhand_

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Posted 19 September 2015 - 06:59 AM

 

CPU fan keeps turning on and off

160°F is only 71°C which is not excessively hot, especially under long-term stress as you described. No CPU fan should turn completely off; probably what is happening is that the Cool & Quiet feature on the BIOS is lowering the RPMs of the CPU heatsink fan to the point where you don't hear it, which is normal. I assume this is a laptop or notebook, which usually run warmer than a desktop computer. If everything is running properly and the unit is not shutting down, BSOD-ing or suddenly rebooting don't worry about it.


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