Your Mac goes all sluggish, you open Activity Monitor, and there at the top of the CPU list is kernel_task, taking 100% or more. Why?
cooling
What should you do with a Mac whose fans keeping coming on full blast, with high CPU loads from kernel_task, and sluggish performance?
By default, your Mac’s cooling fans run at full blast. Only the control system slows them down when it is safe to do so. How to diagnose and fix its problems.
Summer is allegedly coming: the season when your Mac could see its harshest use. Does yours get too hot?
My iMac seems to be running a bit hot. How can I check its temperature?
I am worried that our Macs may be getting too hot. How can I monitor them?
If you ever used a PowerBook G4 on naked flesh, you will already have experienced the thermal limit to processor speed.
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