Heat sink
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A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the
A fan-cooled heat sink on the processor of a personal computer. To the right is a smaller heat sink cooling another integrated circuit of the motherboard.
Typical heatsink-fan combination found on a consumer laptop. The heatpipes which contain a working fluid make direct contact with the CPU and GPU, conducting heat away from the component and transferring it to the fin-stack mounted on the exhaust port of the cooling fan. The fin-stack acts as a fluid-to-fluid heat exchanger transferring thermal energy from the working fluid within the heatpipe(s) to ambient air at dead-state[clarification needed] condition.
A heat sink (aluminum) with its heat pipes (copper) and fan (black)
Power transistor heat sinks. Left for TO-3 package, right for TO-220 package, middle for two TO-220.
Computer cooling
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Computer cooling is required to remove the waste heat produced by computer hardware to keep components within permissible operating temperature limits. Components that are susceptible to temporary mal
Heat sink
…air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature. In computers, heat sinks are used to cool CPUs, GPUs, and some chipsets and RAM modules. Heat sinks are used with other high-power semiconductor devices such as power transistors and…
A 3-fan heatsink mounted on a video card to maximize cooling efficiency of the GPU and surrounding components
Commodore 128DCR computer's switch-mode power supply, with a user-installed 60 mm cooling fan. Vertical aluminium profiles are used as heatsinks.
The dust buildup on this laptop CPU heatsink after three years of use has made the laptop unusable due to frequent thermal shutdowns.