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David Carlton
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Inspiron laptop fan running at full speed constantly.

I have an Inspiron 17R 5721 laptop and about 2 days ago the fan started running at full speed and has stayed on. Its very loud and annoying. Is anyone else having this problem? 

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Moderator
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RE: Inspiron laptop fan running at full speed constantly.

The first thing I would do with this 2013 model is to power down/off. Then use compressed air can and blow the dust out of all vents. Blow through the bottom vents and the dust should appear out of the rear vent. Then retest. Then go here:
How to Use and Troubleshoot the Inspiron 5721
and run the diagnostics.

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