Replacement Hard Drives or SSD's in an iMac cause the HDD Fan to run at full speed.
Unlike other Fan Control Software, HDD Fan Control completely controls the fan speed making it run correctly again.
Controls the fan speed to provide the correct cooling for your drive, preventing overheating and early failure whilst also keeping the fan quiet when cooling is not needed.
HDD Fan Control does not use Apple's Internal Temperature Sensor, instead it uses the S.M.A.R.T interface built into every HDD and SSD to obtain the drives internal temperature.
Unlike other Fan Control Software which can only increase the fan speed. HDD Fan Control directly controls the speed of the HDD Fan slowing it down when the drive is cool, and speeding it up to protect the drive from overheating when hot.
Runs the fan at a speed appropriate for the HDD or SSD's actual temperature.
Provides the correct cooling for your drive, preventing overheating and early failure whilst also keeping the fan quiet when cooling is not needed.
HDD Fan Control uses the S.M.A.R.T protocol built into every Hard Disk Drive and SSD to obtain the drives internal temperature without the need for Apple's Temperature Sensor or HDD Firmware. This allows you to use any HDD or SSD in your iMac
Runs as a system process at startup, working even before or if a user has not logged in, and continuing to work until the iMac is shut down; totally independent of user login.
HDD Fan Control allows you to install any HDD or SSD into your iMac, or install additional drives, and not have the loud noise from the iMac caused by the HDD Fan. Have confidence in knowing that the cooling has been setup for the new drive's specifications.
Some SSD manufacturers have not implemented correct temperature readings over S.M.A.R.T for their SSD's. HDD Fan Control will still work with these SSD's by calculating the approximate temperature of the drive from the other internal sensors.
It can also be setup to not use S.M.A.R.T for any drive if this is preferred.
HDD Fan Control is used by Apple repair technicians all over the world and has proved itself as a great solution to the fan problem.
If you are a technician looking for volume licensing please check our Volume Licensing, or for more custom requirements please contact us.
Ability to define a custom relationship between Drive Temperature and Fan Speed for your drive's specific cooling needs and your fan noise preferences.
We are constantly improving and testing the temperature control algorithm with new Hard Disks and SSD's to make sure we provide the best fan control possible, as such you get free Automatic updates of HDD Fan Control.
HDD Fan Control comes with a small Application called HDD Fan Control Monitor. This lives in the Status Bar and displays the drive's current Temperature and the Fan Speed.
Thanks for an awesome program. You have calmed my HDD wows.– Geoffrey
Software works perfectly! Great relief from that fan noise. – Lauri, Finland
Thank you for the quick fix, it works – Dániel
It runs like a charm. – Bo, Sweden
OMG, I totally did not believe this was going to work.
I took in my computer for a new hard drive and I as soon as I got it home the fan went crazy.
I knew I wouldn’t be able to continue to work that way. Within seconds of installing this program the fan instantly went off. My sanity is restored!
Thanks! – Amy, Indiana US
Thanks for the Fan Control software.
The fan noise was freaking annoying after I replaced my 1TB HDD with a 2TB HDD. even though I replaced the HDD with the same brand (Seagate) that utilized the same temperature plug.
I even went back into the computer twice to double check all connections. Your codes saved me from reinstalling my old 1TB HDD. – Kalvin, Oregon US
Thank you so much for this software, it does EXACTLY what I need and saves me having to buy and install a temperature sensor to stick to the HDD (or jumper the existing sensor cable to disable monitoring of the HDDtemp)! Your software saved me from any of the other nasty solutions. – Ian, Australia
Its great software and saved me a whole heap by enabling me to change out my HDD on my own, and not spend a lot of money.
Apple already has way too much of my money already!! – Colin, UK
Can’t even tell you how much I appreciate your work.
My wife was close to tossing the iMac out the window to get rid of the noise.
I replaced a failed drive out of warranty with the same model (but no apple firmware) months ago. Wasn’t comfortable with the short solution, and Apple “genius” support told me I needed to buy an “apple” drive.
Thanks again. – John, Tennessee US
I just wanted to drop you a quick line to say thanks for providing this excellent software at a very reasonable price…
Unfortunately, I’ve found it about 3 weeks too late — just replaced my HDD and had to buy a new sensor cable, as I accidentally removed some of the insulation on the wire…
This app would have been a much quicker, and cheaper, fix than ordering a whole new cable and dealing with 6500RPM for 2 weeks =) – Mat, Canada
We used this software to control the fan. By default, HDD Fan Control sets the speed of the fan to 1000 rpm, which is much quieter than the 6000 rpm that the fan spins at without the utility.
To get the iMac working so I could observe the fan, I used HandBrake to convert a DVD file that was ripped to the hard drive. HDD Fan Control sped up the fan to keep the temperature down. – MacWorld
Finally, I found HDD Fan Control. Installed it and instantly, the HDD fan went back down to 1600 rpm and the iMac was silent again.
What a relief! – Samantha, Paris
HDD Fan Control rocks, saved my sanity after replacing a failed 1TB Seagate drive in my 2009 iMac.
Thanks! – Mike, UK
Thanks guys for a great app that solve one of the most irritating issues with Apples policies.
All I need to know now is how do I claim the cost back from Apple?
Keep up the good work. – Mark, Italy
Just wanted to extend my thanks for developing this software!
I'm an audio engineer who was highly annoyed that the fans were going full blast, HUGE problem for any recording.
You are a life saver! – Jordan, California US
Just replaced my drive with a new one yesterday as my warranty had ran out and found about your program which fixed my fan issue instantly, thank you for saving me a few bucks and lots of hair!!! – Fred, UK
I love the app.
I am a proud owner. – Jeff, Pennsylvania US
I purchased HDD Fan Control a few months back and it really works great!
I have been very happy with it. – Juston, Georgia US
Running well, no more fan noise!!!
Brilliant. – Steven, UK
I've successfully installed your app on both partitions and the HDD fan is now under control both in Snow Leopard and Lion.
The silence is absolutely wonderful!
Thanks for helping to prolong my sanity! – Jim, Wisconsin US
A little while ago I bought this software for my iMac, and it works amazingly and I am so happy with my purchase. – Nathan, Australia
This was EXACTLY what I needed!
After a week without my iMac, I received it back from the service shop just to find that the fan was going crazy.
At first I thought I would have to bring it back again for more service, but this software solution did the trick.
Thanks for the product, guys! – Kas, Netherlands
Wonderful, thanks so much! – Joshua, Wisconsin US
3 words. I LOVE YOU! – Alessandro, Italy
App is working great!
Keeping things cool and quiet! – Shay, Florida US
Merci beaucoup pour toute l'équipe! – Redouane, France
Whoever thought of this product should be given a medal.
Excellent the noise died right down. wow. – Cornelius, UK
I just got a crosier SSD drive my fan temperature was crazy loud.
I got the fan control it works great can't complain – Haroutun, California US
I'm not one for writing reviews or sending feedback but in the case of HDD Fan Control I just had to!
I replaced a near dead hard drive in a 27" late 2009 iMac a couple of days ago and although the operation was a success I have since fallen victim to the HDD fan spinning itself up into a frenzy of 5500rpm and giving everyone in the office a headache! I was at a loss as to what to do about it especially as I found out about the firmware issue which basically means that you're stuffed really. Then I stumbled across your website. Bought and installed the HDD Fan Control software this morning. It worked immediately and has continued to do so all day so far. Awesome.
Problem very much solved. Possibly the best money I've ever spent!! Well done guys for a great bit of kit. – Dave, UK
Great service, thanks so much.
You've got yourself a happy and loyal customer. – Jeffrey, LA
Works great, thanks. – Paul, Canada
The OS X version works as intended, which is awesome. :) – Mikko, Finland
I purchased HDD Fan Control at the beginning of September and it is working well, thank you. – Brian, UK
It appears that you have the best fix for my hard drive issue and I've been through a bunch. – Robert, Colorado US
I've bought HDD Fan Control for my 21" iMac and it works perfectly with Lion. – Dirk, Germany
Well, thanks for your replies and your support.
The software is just what I needed.
Great and thanks! – Meagan, California US
This is an amazing piece of software and we hope it really DOES do the trick that OWC wants to keep to themselves. – Mick, California US
I used the demo of your product on my iMac, and as soon as I installed it, the fans started to work normally.
I like it !
I'm so glad that I found your website. – Sal, Indiana US
It worked perfectly. – Kenny, Ontario CA
I installed your app tonight and it controlled my fan right away. – Joel, Arizona US
Just bought HDD fan control yesterday and it's working wonderfully. – Karl, Iceland
This is a fantastic product and I have been happy ever side I first got it!! – Matt, Utah US
I purchased HDD Fan Control and it works great while in OS X - thanks! – Mike, Colorado US
I love your application in OS X its a life saver. – Jeffrey, Pennsylvania US
Love it for Mac. Keep up the good work. – Bradley, Australia
I was using smcFanControl with apple scripts to set the fan speed.
That application worked at startup, but I had to make scripts to override after wake from sleep. I was not savvy enough to write a script to do that as well, so it was a manual task.
The main problem with that setup was my Mac would wake from sleep on its own when I was not around, and I would return to a full fan speed Mac...not that happy.
Your application solved this problem and is well worth the money! – Gavin, Massachusetts
Again I can't tell you how much appreciate all your work. – Daniel, Missouri
Very good! Thanks for all your work! – Jonathan, Ohio
"Just replaced my drive with a new one yesterday as my warranty had ran out and found about your program which fixed my fan issue instantly, thank you for saving me a few bucks and lots of hair!!!
Regards, A satisfied customer.." – Fred, Wales
Your app has saved my sanity which I was in danger of losing due to the hard drive fan roaring and messing up my guitar recording. – Jeff, LA
What a great and simple fix for my noisy fan ! Thanks !! Saved me taking my iMac to bits again and mess about :-) – Carl, Liverpool UK
Bonjour, BRAVO !!! pour votre travail, j'ai pu installer dans mon iMac 27 pouces, un western digital Vélociraptor 600 gb. Tout fonctionne a merveille ! Merci encore Bien cordialement – Alain, France UK
After installing a solid state drive, there was huge fan noise on my 2006 iMac. :-( Found smcFanControl but it didn't work on this old iMac with Lion. :-( :-( I found and downloaded and this fixed my problem. Yay! Anyone wondering if it will work for them, just download the 1 hour trial version and see. – Montezuma, California