When starting up a laptop that was dormant for a while, there might be a System Fan Error Message and it will cause your device to shut off itself after 15 seconds to prevent danger to itself and you, the operator.
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About The Author: Stephan Pringle is an Information Technology Specialist. He covers hardware and software and provides tips for you to troubleshoot and repair issues on your own. In his spare time, he writes articles about the State of New York on his Hackintosh and HackBook and that has helped him to become the top contributor of the New York City section of Yahoo! Answers.