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genikifor Author

Level 1

26 points

iMac normal temperature

Whats the normal temperature a stock 27" mid2010 iMac should have when running idle? I sincerely hope there is someone still working with those macs! :-)

MacBook Pro 16″

Posted on Jan 15, 2025 10:36 AM

27 replies

den.thed

Level 10

83,722 points

Jan 17, 2025 9:38 PM in response to HWTech

HWTech wrote:

The information in the screenshot from Macs Fan Control looks good although the "Platform Controller Hub Die" appears it may be a bit high compared to all the other values, but it has been years since I worked on a 2010 model. Most Macs have most of the temps close in value (for those that get extremely hot under load).

I noticed the Platform Controller temp as well, but suspect that it's residual heat left over from the previous run and restart.

genikifor Author

Level 1

26 points

Jan 18, 2025 3:31 AM in response to den.thed

Okay you are right and im sorry for not mentioning the absecence of the HDD thermal temp sensor, but i don't get why the HDD fan keeps on reving more and more? Shouldn't it just rev at some specific point and stay there?

den.thed

Level 10

83,722 points

Jan 18, 2025 7:46 AM in response to genikifor

No, the iMac's SMC (system management controller) requires that sensor to properly control the HDD fan speed.

With MacFanControl, you should be able to set the HDD fan to run at Constant speed. To do that, select Custom... and set the HDD fan to a Constant value of 1100 or 1200 RPM.