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crwdns2915172:0crwdne2915172:0
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crwdns2944351:0crwdnd2944351:0ASUS VivoBook S400C CPU Fan Replacementcrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Jerry Wheelercrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Jerry Wheeler

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Introduction
The CPU fan blows cool air across the fins of the heatsink to remove the heat generated by the processor from the computer.
Since the fan runs at all times when the computer is turned on, it is expected that it will eventually fail. the fan's lifetime can be extended by an occasional cleaning.
***Before reassembly it is essential to clean off the old thermal paste from the processor and the heatsink and to apply new. [link|https://www.ifixit.com/Guide/How+to+Apply+Thermal+Paste/744|How to apply thermal paste] explains how.***