Macs Fan Control can set the fan of an iMac (or MacBook, or other hardware) to any speed. The coolest thing that it can also set a fan to sensor-based control depending on your new HDD by reading its S.M.A.R.T. This free app is much better and powerful than HDD Fan Control, which is currently deprecated but still costs $35. Feb 2, 2012 - I was using this fan control application. I have tried 'SMCfanControl' and 'Fan Control for Mac' but they are way to. Is a simple app to set the speed of my HDD fan too about 1600rpm, and it will keep it at. Maybe the temperature sensor isnt connected properly to the HD from.
Hello everyone, So I've got a very frustrating issue. A while back I replaced my HDD for a new Samsung evo ssd for my mid 2010 iMac.
After successfully installing it, the fans from the iMac were blowing at maximum speed. I called my local computer store here in Holland and they told me this was happening because the new installed SSD has no thermal sensor, so the fans would just blow at maximum speed.
They told me I needed to install a program called SSD Fan Control. After installing I had no problems anymore for around 6 months. However since, i guess 3 days, 1 minute after turning the computer on, the fans again were blowing at maximum speed.
![Keeps Keeps](http://thehouseofmoth.com/wp-content/uploads/2017/05/TGProFanBehavior.jpg)
I tried fixing it with the ssd fan control program but with no luck. I uninstalled the app and reinstalled it, I also tried smcfancontrol, all with no succes. Now i wiped my ssd and did a fresh install of high sierra, installed all updates and installed ssd fan control. Again, with no luck. Does anyone has a suggestion what I could do, or even better, a solution?
This all happens like a minute after turning on so the fans do not immediately blow at maximum speed. Thanks in advance! Hi, thanks for your reply. After downloading a program called 'fanny' i noticed that the temperature of my cpu/gpu is stuck at 0 degrees! I also noticed that the fans of the cpu/gpu were spinning at around 4000 rpm.
I realised that i was doing research for the wrong fan! I re-opened my iMac to see if any cable has come loose but everything seemed fine. At this point I just think I have a faulty thermal sensor or in the worst case scenario: a faulty motherboard. I think i'll just take it to my local repair store here in holland.
If anyone else still has a suggestion i'll be glad to hear it! Thanks, Luca.