Fan Speed Controller

Anyone who uses a computer for long periods will appreciate the benefits of a silent PC. Quite a few websites now sell computer accessories specifically designed to make your desktop run more quietly. The CPU fan is often the main culprit in a noisy PC; in many cases it can be replaced by a large passive heat sink to dissipate the heat more efficiently. The heat sink fins are arranged to make optimum use of air blown through the case by the power supply fan.