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Level 1

20 points

Constant fan noise on 2017 iMac even at rest

Hey Everyone,

I just upgraded from a 2012 to a 2017 iMac. I noticed yesterday that the fan is constantly on with the new iMac - even in rest mode (not rendering or moving data etc...). I saw some articles about this. It's really annoying especially if you work in the evening hours and the house is quiet and you want to work in absolute silence.

My old iMac had no problem with that. Do others have the same problem? Is there anything else besides earplugs I can do? Would an SSD drive make a difference or a different processor type that require less energy and create less heat?

Any suggestions would be great.

Thanks,

Holger

27-inch iMac with Retina 5K display

Configuration

• 3.8GHz quad-core 7th-generation Intel Core i5 processor, Turbo Boost up to 4.2GHz

• 8GB 2400MHz DDR4

• 3TB Fusion Drive

• Radeon Pro 580 with 8GB video memory

iMac with Retina 5K display, (2017, 27-inch )

Posted on Aug 17, 2017 9:36 AM

Best reply

macjack

Level 10

111,168 points

Posted on Aug 17, 2017 9:43 AM

What's causing the fan activity depends on which fan it is. But if the fan is that noisy, I'd suggest you use your free Apple Support to get in touch with them and have it checked.

Have you tried n SMC reset?

Reset the System Management Controller (SMC) on your Mac - Apple Support

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46 replies

Apr 1, 2018 2:18 AM in response to JS.94

I posted my configuration, but in case you missed it here it is, its a 27" 2017 Core i7 with 1TB SSD, 580 Pro GPU and 16GB ram.

Constant fan noise on 2017 iMac even at rest