PSU fan going higher and lower?

Grimmeh

Honorable
Jan 29, 2014
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Hello Everyone!

Somehow my PSU's fan is somehow not that silent anymore, the fan speed keeps going up and down and at some point the fan speed would go high and stay like that for 10 seconds then it goes low again.

What could be causing this?
 

Grimmeh

Honorable
Jan 29, 2014
239
0
10,680


It could be that or as what I heard is this time of year, summer
 


That wouldn't really explain the 10 second fan cycle unless it corresponded to a 10 second full load cycle from the CPU/GPU or something.