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Apple Computing Products:
macOS - Notebook Hardware
Macbook fan running -- battery the cause?
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<blockquote data-quote="chscag" data-source="post: 1092178" data-attributes="member: 46727"><p>To Skybolt:</p><p></p><p>You probably should start monitoring the Fan speeds so you can provide us with some statistics that we can go on. Download the free <a href="http://www.macupdate.com/info.php/id/23049/smcfancontrol" target="_blank">SMC Fan Control</a> app or Istat Menus (not free).</p><p></p><p>The problem you describe can be attributed to several things: Bad thermal sensor on the logic board, or malfunctioning DC input board. I've seen both of these cause run away fan speeds. Sometimes removing the battery helps (as you found out) but that also slows down your CPU.</p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="chscag, post: 1092178, member: 46727"] To Skybolt: You probably should start monitoring the Fan speeds so you can provide us with some statistics that we can go on. Download the free [URL="http://www.macupdate.com/info.php/id/23049/smcfancontrol"]SMC Fan Control[/URL] app or Istat Menus (not free). The problem you describe can be attributed to several things: Bad thermal sensor on the logic board, or malfunctioning DC input board. I've seen both of these cause run away fan speeds. Sometimes removing the battery helps (as you found out) but that also slows down your CPU. Regards. [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Macbook fan running -- battery the cause?
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