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Old 07-07-2021, 11:05 AM   #1
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Default Apple iMac A1418 Late 2013 - Fan run at max.

Hi there

An iMac A1418 late 2013 (but same problem on an A1419 too).

It works but very slow. Fan start to run after few second you turn on the iMac.

I've spoke with a friend in Apple, and he tell me about a sensor defective, but they usually replace the motherboard to fix the problem.

This iMac have no sensor (only one on the display), so I presume he means about a sensor on the motherboard.

Anyone have same problem? any idea about to solve?

Thanks and best regards.

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Old 07-07-2021, 12:01 PM   #2
Per Hansson
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Default Re: Apple iMac A1418 Late 2013 - Fan run at max.

I'm just guessing here but that should not make it run slow.
Check if you can find any program that can check the temperature of the CPU.
Perhaps it is genuinely high: then it will clock down to protect itself.
A likely reason could be bad thermal compound between the CPU and heatsink.
"The one who says it cannot be done should never interrupt the one who is doing it."
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