Hi, so my fans max out due to changing the hard driver on the late '09 iMac bla bla bla. I was using this fan control application. And i loved it but after a few restarts of the iMac the app going all glitchy and the fan speeds say there at '65000' rpm and so my iMac fans max out to there top rpm '6000'. I have tried 'SMCfanControl' and 'Fan Control for Mac' but they are way to complicated, all i want is a simple app to set the speed of my HDD fan too about 1600rpm, and it will keep it at that when ever i boot up mac etc. Until i tell it to stop. (Also some apps ive read about people say they can't uninstall them etc.
None of those please ). Click to expand.Any fan control software that limits the maximum fan speed is not recommended, as it can cause overheating.
The Intel processors used in Macs are designed to automatically shut down to prevent damage if they truly overheat (around 100C/212F - 105C/221F, depending on your processor). Will give you accurate readings of your temps and fan speeds, among other things. Unless there is a rare defect in a Mac, most temps are well within the normal operating range, considering the workload being put on it.
Double-click the Macs Fan Control app in Applications. You'll now see a list of Fans that you can manually override on the left and a list of current operation temperatures on the right. Jan 11, 2018 You don't need any 3rd party fan control app. Your Mac knows how to manage temps and fan speeds without any intervention by the user or 3rd party apps.
Websites with Flash content, games and other multimedia apps will put higher demand on the CPU/GPU, generating more heat. This is normal. If you're constantly putting high demands on your system, such as gaming or other multimedia tasks, expect temps to rise and fans to spin up accordingly. It's just your Mac doing its job to maintain temps within the normal range.
It is also quite normal for your Mac to become extremely hot to the touch during intensive operations. The aluminum body transfers heat more effectively than other materials used in computer casings, so you will feel the heat more. This doesn't indicate that it's overheating and will not harm the computer to be hot to the touch. Your fans are always on when your Mac is on, spinning at a minimum of 2000 rpm (for MBPs) or 1800 rpm (for MBAs, MBs and minis).
IMacs have 3 fans with minimum speeds in the 800-1200 range. They will spin faster as needed to keep temps at a safe level. If they're spinning up without increased heat, try. (PRAM/NVRAM has nothing to do with these issues, so resetting it will not help.) The intake and exhaust vents are in the back of the computer near the hinge on all Mac notebooks.
The iMac vent is a slot on the back near the top of the computer. Make sure the vents remain unblocked to allow your computer to perform at its best. For Flash-related issues:. and make sure it's the available. Install (Safari), (Firefox) or (Chrome) to control which Flash content plays on websites. Use the to watch YouTube videos, when available.
(May impact fullscreen viewing. See link for details.). If the fans are 'stuck' going super fast, I would 'turn off' 3rd party fans speed software, and reset the SMC Controler as well. Get your iMac back to factory settings. Then, one can customize it anyway one wants.
After iMac fans are reset and back to running great at factory default setting, do investigate SMCfanControl software. Newest 2.3 version is: Note: For this specific application, simply create a new profile within it (for example, `My iMac` and set its fans to 200 RPMs faster (for example, set at 1,200 RPMs). Let run for 7-9 days and see if it helps lower internal temps.
If wondering, I use SMCfanControl ver 2.3 within iMac and only set the fans 200 RPMs faster (faster than factory defaults). It makes the internals of my iMac run 5-8 C temps lower. Just like automobile transmissions, running them cooler than factory default is better 'in the long run'. And at 1,200 RPMs, I cannot hear its fans. Hope this helps. If the fans are 'stuck' going super fast, I would 'turn off' 3rd party fans speed software, and reset the SMC Controerl as well. Get your iMac back to factory settings.
Then, one can customize it anyway one wants. After iMac fans are reset and back to running great at factory default setting, do investigate SMCfanControl software. Newest 2.3 version is: Note: For this specific application, simply create a new profile within it (for example, `My iMac` and set its fans to 200 RPMs faster (for example, set at 1,200 RPMs). Let run for 7-9 days and see if it helps lower internal temps.
If wondering, I use SMCfanControl ver 2.3 within iMac and only set the fans 200 RPMs faster (faster than factory defaults). It makes the internals of my iMac run 5-8 C temps lower. Just like automobile transmissions, running them cooler than factory default is better 'in the long run'. And at 1,200 RPMs, I cannot hear its fans. Hope this helps. Remove 3rd party FAN Control software and reset its SMC controller. Get your iMac running on factory defaults.
Get it stable (on its factory configs) and after its stable for 5+ days, then re-apply any customizations to it. Its like souping up a vehicle thing. If you install a new air filter and it starts to 'act up' later on, one should re-install factory parts. Get it stablized with factory parts / factory settings. After its running stable again. Then, reinstall your customization 'wants'. If you think the 3rd party item isn't right for you, then install a different company 3rd party item.
Like SMART fan speed control software instead. This approach works for me. Ok so found an old iMac for sale on Craigslist that was so cheap I couldn’t let it get away. It had the usual lines on the screen issue but I knew that connecting an external monitor would sort that. The other issue was that the hard drive was shot, so I went and bought a cheap refurbished hard drive and replaced the one that was in there.
BUT of course the refurbished hard drive didn’t have a heat sensor connection on it so I had to leave that unconnected. My word, how the iMac’s fan roared. It would almost make you want to use ear defenders! So I googled iMac Fan Control and came across this forum. Read all the posts above and went ahead and downloaded SMC Fan Control 1st. That program did sweet F all for me.
Then I said I'd try SD Fan Control. Sparked up the application and clicked on SMART SILENCE at last. I will repost when my iMac fries from overheating, so if there is no follow up post, you can take it that the iMac has not exploded yet! Click to expand.Several of the ones I've used control both limits, Macs fan control & TG for example.
I have the exact same issue, near max fans at 50C was too much, dropped it to min below 75 and max as it hit 80.worked like a champ for years in both my macbook pro and imac. The imac pro could use a little more fan as it seems not to kick in until it hits 93. I don't trust temps that high, especially after going through 8 motherboards when I was told hitting 105C was 'normal.' I guess 'normal' equates to a motherboard change every 8 months. Since setting 80 as the top limit, I haven't had an issue with a single system since. I had the same roaring fans problem.
'SD Fan Control' didn't work for me, but 'Macs Fan Control' did (after a little experimentation). It's from the folks who brought you iStats Menu: Background: iMac 21.5', late 2009, to be repurposed for lighter duties. Replaced 500GB HDD with 250GB SSD. Followed instructions on the internet and used the kit from OWC computing, including the hardware heat sensor.
Restored from Time Machine backup. Everything was fine. It could not have gone better - except for the roaring fans. So I tried SD Fan Control - nada. Reset SMC and tried again - no change. I couldn't face removing the glass and the display again to futz with the hardware.
I was about to take the machine in for repair, but hey presto! Hope this helps in the future.
Macs Fan Control provides something that only Apple possessed in the past: the ability to control how a Mac's cooling fans perform. This is actually a big deal, and something that shouldn't be taken lightly. Incorrect use of this app (or similar apps) could potentially cause damage to your Mac. Apple used advanced thermal modeling to come up with the cooling profiles used in a Mac's fan management system; Macs Fan Control can replace the Apple-supplied fan profile with one you create, and is geared more toward intermediate to advanced Mac users than beginners. That doesn't mean that if you're a beginner you shouldn't use it, only that you should use it carefully and wisely.
You've replaced a component in your Mac ( or graphics cards come to mind), and in the process, the old temperature sensors were damaged or are. You can use Macs Fan Control to set a fan speed limit to prevent a fan from revving up beyond what is needed. Your Mac is being used in a particularly noise-sensitive environment (such as a recording studio), and while you can normally use the default fan control, there are a few short periods of time where you need to silence your Mac as much as possible by preventing the fans from spinning up beyond a preset limit. That's how I primarily use Macs Fan Control: to monitor the internal temperature of the Mac I use, and to note the fan speed. Many times while using my Mac, I'll notice the fans picking up speed, increasing the RPM to cool down the Mac. For me, this seems to happen with specific websites, which I assume are using an unusual amount of, video, audio, or other 'special' content on their website in the belief that an ultra-dynamic interactive website is a better experience than their competitor's site.
I usually just note the website URL and think twice about returning.