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Apple Computing Products:
macOS - Notebook Hardware
New MBAir fan runs at high speed for no reason.
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<blockquote data-quote="cptkrf" data-source="post: 1315772" data-attributes="member: 134861"><p>I have one of the new 2011 Airs. On occasion, I will notice the fan running at full speed even though I am not currently doing anything heavy. I assumed that I had a stuck process somewhere, but using the Top terminal command, nothing stands out. In fact, usually the machine is idling and Top itself is the only thing using cycles. Looking at iStat, the machine load is 1 or 2 percent, idle is 98 or so, the temperatures are normal with the hottest item being the CPU at about 53. And it is in a very cool room at about 72f. When the machine is hung in this mode, the fan will never drop below 6000+. It has to be a hung process somewhere, because if I reboot, the fan will slowly drop to a normal speed over a few minutes. What is puzzling me is that I see no sensor anywhere that is slowly cooling down.</p><p></p><p>I am starting to log what I start up to attempt to figure out what was running just before the fan cranks up, but so far haven't tied it to anything. </p><p></p><p>Ideas, anyone?</p></blockquote><p></p>
[QUOTE="cptkrf, post: 1315772, member: 134861"] I have one of the new 2011 Airs. On occasion, I will notice the fan running at full speed even though I am not currently doing anything heavy. I assumed that I had a stuck process somewhere, but using the Top terminal command, nothing stands out. In fact, usually the machine is idling and Top itself is the only thing using cycles. Looking at iStat, the machine load is 1 or 2 percent, idle is 98 or so, the temperatures are normal with the hottest item being the CPU at about 53. And it is in a very cool room at about 72f. When the machine is hung in this mode, the fan will never drop below 6000+. It has to be a hung process somewhere, because if I reboot, the fan will slowly drop to a normal speed over a few minutes. What is puzzling me is that I see no sensor anywhere that is slowly cooling down. I am starting to log what I start up to attempt to figure out what was running just before the fan cranks up, but so far haven't tied it to anything. Ideas, anyone? [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
New MBAir fan runs at high speed for no reason.
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