SSD Fan Control

Discussion in 'iMac' started by Lucamassaro, Jan 12, 2018.

  1. Lucamassaro macrumors newbie

    Aug 16, 2017
    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. 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!
  2. nambuccaheadsau macrumors 65816


    Oct 19, 2007
    Nambucca Heads Australia
  3. h9826790 macrumors G4


    Apr 3, 2014
    Hong Kong
    SMC Fan Control won't work, you need a software that can alter the Target Fan Speed, not the Minimum Fan Speed.

    One of the well known free software that can "fix" this issue is the MacsFanControl.

    P.S. SMC Fan Control can work, but you have to extract the core part, run it in terminal, with the correct SMC key and parameter etc. Not recommended to normal user.
  4. Lucamassaro thread starter macrumors newbie

    Aug 16, 2017
    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!


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