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Fan assemblies with this control input provide the ability to adjust the rotational speed of the fan without changing the input voltage delivered to the cooling fan assembly. A variable rotation speed allows the cooling rate to be adjusted to meet demand, quietening the fan and saving energy when full speed is not required.
Where noise is an issue, larger, slower-turning fans are quieter than smaller, faster fans that can move the same airflow. Fan noise has been found to be roughly proportional to the fifth power of fan speed; halving the speed reduces the noise by about 15 dB. [22] Axial fans may rotate at speeds of up to around 38,000 rpm for smaller sizes. [23]
Chassis Air Guide or CAG in abbreviation, is Intel's thermal system to PC chassis. The system includes an air duct for CPU, because in an environment of increasing thermal loads, the processor is generally the most demanding component in terms of system thermal design. It also describes optimal locations for intake and exhaust fans.
SpeedFan is a system monitor for Microsoft Windows that can read temperatures, voltages and fan speeds of computer components. [3] It can change computer fan speeds depending on the temperature of various components. [1] [4] The program can display system variables as charts and as an indicator in the system tray.
Phase-change cooling is an extremely effective way to cool the processor. A vapor compression phase-change cooler is a unit that usually sits underneath the PC, with a tube leading to the processor. Inside the unit is a compressor of the same type as in an air conditioner. The compressor compresses a gas (or mixture of gases) which comes from ...
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A 17-year-old cheerleader from California was stabbed to death just days before Christmas — and police say they've arrested an "acquaintance" in connection with the case. On Friday, Dec. 20, at ...
Software like speedfan or Argus Monitor may allow fan speed control. Many newer motherboards support pulse-width modulation (PWM) control, allowing the fan speed to be set in the BIOS or with software. Mount fans on anti-vibration mounts. Remove restrictive fan grills to allow easier airflow, or replace noisy fan grills with quieter versions.