Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

User profile for user: francy88
francy88 Author
User level: Level 1
11 points

How to properly set SSD Fan Control on iMac late 2009 after SSD upgrade

Hi,

I’ve upgraded my late 2009 iMac 27” with an SSD hard drive.

Because of the fan noise, I’ve installed SSD Fan Control, but I’m not sure how to set it properly, avoiding to reach high internal temperature that could damage hardware.

Using “SMART” mode fan are very quiet; using “Auto” mode are more noisy.


For now my settings are the following:

User uploaded file

What does “1100 RMP @ 45 c” means? On the screenshot you can see that the temperature is 30°C, but the fan RPM is 1499... 😕

Do you think these are good settings for me?


Thanks very much for the help

Francesco

iMac, macOS Sierra (10.12.6), Late 2009

Posted on Sep 22, 2017 1:35 AM

Reply
Question marked as Best reply
User profile for user: John Galt
John Galt
User level: Level 10
141,414 points

Posted on Sep 22, 2017 9:06 AM

If you want to replace your iMac's internal hard disk drive with an aftermarket SSD, obtain one that incorporates the correct thermal sensor.


The iMac's thermal sensors are absolutely, positively required for proper operation. I cannot emphasize enough just how bad an idea it is to bypass them with clever third party hacks. There is no software substitute for operable hardware.

View in context
10 replies

There are no replies.

How to properly set SSD Fan Control on iMac late 2009 after SSD upgrade

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.
Learn more Sign up