HDD Fan Control controls fan speed in relation to drive temperature. If you have replaced your iMac's Hard Drive with a new Hard Drive or a SSD and the fan has started running at full speed creating a lot of noise, HDD Fan Control will control the fan speed, preventing the loud noise whilst keeping your drive safe.
NOTE: This app is specifically designed to control your HDD Fan using your drives S.M.A.R.T data for iMacs with replacement drives which no longer provide correct temperature data to Apple's sensor.
HDD Fan Control will
What's New
Version 2.2:
Support for using the iMac's Internal Temperature instead of S.M.A.R.T.
Some SSD's do not provide correct temperature data, HDD Fan Control now supports using the iMac's internal temperature to control the HDD Fan instead of the temperature reported by S.M.A.R.T. This will automatically happen when HDD Fan Control detects a drive reporting an incorrect temperature or no temperature. It can also be set as a preference in the HDD Fan Control Preferences Pane
With testing we have improved the default settings for most users.
Version 2.2:
Support for using the iMac's Internal Temperature instead of S.M.A.R.T.
Some SSD's do not provide correct temperature data, HDD Fan Control now supports using the iMac's internal temperature to control the HDD Fan instead of the temperature reported by S.M.A.R.T. This will automatically happen when HDD Fan Control detects a drive reporting an incorrect temperature or no more...
Had to replace the drive in a late-2009 iMac (Lion OS) with a consumer – i.e. unformatted – version of the original drive. Hadn't gotten below 6000 rpm for a week, despite trying smcfancontrol etc. This is the ONLY software that went directly to the source of the problem – the loopy drive temp control system in that generation of iMacs – and fixed it. The fans slowed to about 1200 rpm the moment it was installed. (Right now, the HD is at about 52C and 1863 rpm while a full system backup is running.) Yes, $30 is steep, but it's a small price to pay to expel that hideous fan roar from an iMac. If that sound is making you nuts, this app won't disappoint. And you can demo it for an hour first!
Since upgrading to 10.7.3 it doesn't seem as if HDD FanControl is functioning correctly. I have mine set to a minimum fan speed of 1000rpm and set to increase from 50degC, but even with the current cpu temperature at 22degC the fan is running at 1267 rpm.
It looks to me as if HDDFC is not actually controlling the fan temperature any more so the question now is what is actually controlling it? Before installing HDDFC the fans ran at full speed but they are not doing that now, so something is limiting the fan speed.
As a follow up to the above, cpu temperature has now risen to 40degC but the fan speed is still 1267 rpm. It may be that there has been a tweak to the interface to the fan control that means that when HDDFC sets the speed to 1000rpm it actually ends up being set to a higher speed.
When I change the settings so that the speed should be higher (by moving the start of the ramp down), the fan does speed up, although it doesn't get to the target speed. I wonder if a ratio has been changed in the OS?
Hi Nick, thanks for your comments, HDD Fan Control should work fine in 10.7.3.
I have sent you a message to the email address you provided with your order so we can look at what may be causing your fan to run faster at its minimum.
Works brilliantly - very impressed. Only minor comment is that the version that is installed is not mentioned anywhere within the Prefs pane. Furthermore there doesn't appear to be any automatic update facility, either to alert you if there is a newer version or to offer to download and install (such as Sparkle). There certainly isn't any sign of it in the UI. Please remedy this! One star downgraded because of this - would be full five stars if this is fixed.
Hi Nick, thanks for your review, just to let you know HDD Fan Control comes with a companion application HDD Fan Control Monitor, you can find it in Applications, it is a Status Bar Application, it will show you your current version, and also does automatic updates using the great Sparkle framework.
I agree that showing the version in the Preferences would be good and will note it for the next release.
LOL, $30 for an app that controls fan speed! There are several free apps that control fan speed, they're not as pretty but they will do the job. I've updated my Mac Mini with a 2.33 GHz Core 2 Duo and a Seagate Momentus 7200 HD, and the freeware "Fan Control" works flawlessly.
Another option for anyone who really wants to spend thirty bucks is to buy an external HD case.
"The job" in this case seems to be "monitor hard drive temperature and increase fan speed accordingly". I don't think the free solutions do that - at least I haven't seen one that does.
Someone who wants such functionality would probably pay for it. Obviously at least some people are willing to pay for it.
If you would rather not, that's great. But what you seem to be suggesting is the developer of this application is charging for something offered elsewhere for free, which is not the case.
I am currently using the original, free version, I find the new version to be a hard sell, being priced at $30. $15 would be a much more reasonable price point considering what this software does; I have paid much less for software that provides a far greater scope of functionality than HDD Fan Control provides.
I understand the need for income, as I am a Mac developer myself, the the way to get that income is through a greater volume of smaller sales, not a lesser volume of large sales.
Yesterday I bought new iMac and changed hdd immediately without any information about fan problem in new model. After I used my new mac for a while. The fan was blow out like a large hair dryer. I spent all night long to find the way out ! At last, your program help me !! It work like a charm. Thanks your guys so much .
I gave this 5 stars simply because it does exactly what it says on the tin. I spent 12 hrs yesterday running round shops talking to supposed experts all had no idea what to do to stop the fan running at max speed. I was ready to throw the imac out of the window!
I'd attempted to use smcFanControl and the command line technique that is floating around on the web to set the max fan speed, which is not an ideal solution... it didn't work for me anyway on 10.6.8. My fan was spinning at 4500 rpm when I downloaded the demo version of HDD Fan Control, it instantly reduced it to 1000rpm, this software is a quite frankly a steal at $35 /£20 in relation to the hassle and expense to get Apple to fit a drive yourself!
If you are fitting a Sata II drive then get this, if SSD you might get away with disconnecting from the MBA as someone has suggested but i'm sure its only a matter of time before Apple find a way to screw that solution!
I would just like to say a huuge thanks to the developer who wrote this software I really was at my wits end yesterday thinking I had a very expensive paper weight!
I have had so many problems with my iMac crashing , I was about to go back to PC ! I downloaded the app , set the fans to 1300 rpm and within 30 minutes I was running at 36 degrees C , and not a crash , in any application , Logic , Final Cut Express , Its a brilliant tool and I am running lion and 8Gb ram , very very pleased indeed ,
Amazing Many Thanks ..Ian
I am presenting the same problem, and I don't know how to solve it... I am going crazy with the noise of the fan, can't support it anymore... I just want to see if the HDD FAN CONTROL SOFTWARE is worth it or no? any thoughts ?
Doesn't work correctly on my late 2009 MacBook Pro running Mac OS X 10.7.3. Shows current speed as -1RPM and tells me that my CPU's temperature is 35C, even though iStatMenu tells me it's 62C.
This app seems to be kinda disconnected from reality. :P
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HDD Fan Control controls fan speed in relation to drive temperature. If you have replaced your iMac's Hard Drive with a new Hard Drive or a SSD and the fan has started running at full speed creating a lot of noise, HDD Fan Control will control the fan speed, preventing the loud noise whilst keeping your drive safe.
NOTE: This app is specifically designed to control your HDD Fan using your drives S.M.A.R.T data for iMacs with replacement drives which no longer provide correct temperature data to Apple's sensor.
HDD Fan Control will run the fan at the correct speed, and keep your drive cool and safe from overheating. If you are looking for an application to adjust your Mac's fans from stock (and not to control fan noise after replacement disk) we can highly recommend the free smcFanControl or iStat Menus
EthanAspen reviewed on 17 Mar 2012
+50
It looks to me as if HDDFC is not actually controlling the fan temperature any more so the question now is what is actually controlling it? Before installing HDDFC the fans ran at full speed but they are not doing that now, so something is limiting the fan speed.
+50
When I change the settings so that the speed should be higher (by moving the start of the ramp down), the fan does speed up, although it doesn't get to the target speed. I wonder if a ratio has been changed in the OS?
I have sent you a message to the email address you provided with your order so we can look at what may be causing your fan to run faster at its minimum.
Thanks
Ben
+50
Nick Collingridge reviewed on 08 Dec 2011
I agree that showing the version in the Preferences would be good and will note it for the next release.
Thanks again
Lesion reviewed on 30 Nov 2011
+228
Another option for anyone who really wants to spend thirty bucks is to buy an external HD case.
+46
Someone who wants such functionality would probably pay for it. Obviously at least some people are willing to pay for it.
If you would rather not, that's great. But what you seem to be suggesting is the developer of this application is charging for something offered elsewhere for free, which is not the case.
+1
+33
I understand the need for income, as I am a Mac developer myself, the the way to get that income is through a greater volume of smaller sales, not a lesser volume of large sales.
rushyman reviewed on 14 Oct 2011
+3
+4
Haekon reviewed on 24 Aug 2011
I'd attempted to use smcFanControl and the command line technique that is floating around on the web to set the max fan speed, which is not an ideal solution... it didn't work for me anyway on 10.6.8. My fan was spinning at 4500 rpm when I downloaded the demo version of HDD Fan Control, it instantly reduced it to 1000rpm, this software is a quite frankly a steal at $35 /£20 in relation to the hassle and expense to get Apple to fit a drive yourself!
If you are fitting a Sata II drive then get this, if SSD you might get away with disconnecting from the MBA as someone has suggested but i'm sure its only a matter of time before Apple find a way to screw that solution!
I would just like to say a huuge thanks to the developer who wrote this software I really was at my wits end yesterday thinking I had a very expensive paper weight!
+2
+2
IanTimothy reviewed on 12 Aug 2011
Amazing Many Thanks ..Ian
Charbelk reviewed on 06 Jul 2011
+1
+4
+93
This app seems to be kinda disconnected from reality. :P