I need some basic electrical engineering type help in understanding how fan speeds are regulated. Most case fans these days come with motherboard headers or switches/sliders to control their speeds.

Here is a simple mod to allow the speed of any 12V fan to be varied. All we need to do is insert a rheostat or variable resistor in the 12V wire to the fan. The rheostat should be rated at least 3 ...

As Moore's Law plunges us into the realm of multigigahertz processors and PCs with gigabytes of RAM, engineers face the task of removing the heat that these state-of-the-art components produce.

Lutron’s first-ever fan speed controller announcement was a hit at the 2019 Consumer Electronics Show two months ago. Now Lutron’s Smart Fan Speed Control is shipping from $59, and early customers ...

Typically, CPU fan noises are heard when you reboot your PC (the whirring sound you may have heard upon startup) and it goes on to decline as the startup process completes. The purpose of fans on your ...

It's not a necessity by any stretch, but Lutron's newest smart switch is still a welcome addition to a system that's already great. Originally hailing from Troy, Ohio, Ry Crist is a writer, a ...

PWM or Pulse Width Modulation has generally been regarded as too complicated for PC fan speed control compared against using rheostats or linear voltage regulators such as the LM317. I present here a ...

Dear ARS gurus<BR><BR>The short version:<BR>Is there a utility to control the Mac Pro case fans while booted in Windows? <B>Edit 1:</B> Yes, there is.<BR><BR>The complete story:<BR>I have a 1 year old ...

What is the best PC fan? All gaming PCs need good cooling to ensure consistent operation without any crashes or drops in the speed of its components. If you're building a new system, many PC cases ...

Windows PCs and laptops require a dedicated fan to support heat dissipation. The fan helps keep the hardware cool and ensures it doesn’t overheat in any intensive work or task. During peak performance ...