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by grsc3p0
Tue Feb 27, 2007 8:30 pm
Forum: Intel Motherboard Forum
Topic: D975BXB2, Fan control, Clicking
Replies: 9
Views: 7053

Fan noise

The clicking fan noise is caused by the PWM fan controller. Pulse Width Modulation is a method of applying a signal to the fan that will vary the width of the fan's pulse. e.g. fan control is digital. Some fans tend to click with PWM controllers and some don't. Had to replace my Panaflow fan with a ...