I believe there are 2 fans inside it, at least that is how many there are in the 27' Core 2 Duo's, I haven't seen a tear down of the I7 version however I'd be surprised if the internals were different in that regard. BTW those are not my specs they are spec's stated by Apple on the Tech Specs page on Apple's web site. Your computer has safeguards built into it that will shut it down if it over heats. If you are concerned then make sure your machine is covered by Apple Care and forget about it as there isn't anything your can do about it. The first time that you start smcFanControl (smcFC) on a Mac it will read the fans and their base rpms.

• the Xamarin.iOS installer.pkg file and run it. You can optionally install this beta version alongside your non-beta Xcode. • Ensure you have the Xcode 10 beta version installed from Apple.

An iMac usually has 3 fans. I have not heard that the huge screen real estate 27' iMac has more or less. I have also not seen anyone claiming that smcFC 'burned out' their fans. I use smcFC on both my iMac Core Duo (3 fans) and my Mac mini (1 fan).

SSD Fan is an open-source fan speed controller, which gives you the overall control of your Mac computer’s fan speed. Download citrix 4.5 receiver for mac. It features a daemon that runs in the background, and it makes speed configuration and temperature monitoring easy. Macs Fan Control is a software solution to noise problems such as those caused by iMac HDD replacement, or overheating problems like those found on a MacBook Pro. Read more + Explore Further.

I find it invaluable here where I cannot afford air conditioning. Macs tend to heat up when viewing any sort of video. I have created settings with smcFC that I use when viewing videos that keep the temps inside my Macs close to the operating temps of when I am checking email and surfing the web. I believe that the above listed temps are the ambient environmental temps advised for using a Mac, not Mac's internal operating temps. 34°C is actually on the low side. My Mac mini runs around 48 usually.

If a Mac overheats it will shut itself off. If you find that your Mac is shutting itself off often I would especially look into why. Is it overheating during a particular activity? Does smcFC perhaps help your Mac run cooler during that activity?

Keep your Mac in a well ventilated place with good air circulation, not cramped into a little cubbyhole of sorts. Every year or two have a Mac tech clean it out. They do get dirty inside, even in your clean home or office. That layer of dirt can add a lot to heating up your Mac. Thanks David, In my case I did a complete migration from my Mac Pro 4 fans over to my new iMac 27. So when SMC FC runs it still is showing 4 fans, cpu,pci,power supply,rear fan.

I uninstalled it first after transfering over and then reinstalled it, but it is still showing 4 fans. If you are right, its probably not showing the correct amountd. I probably should uninstall it again, making sure to remove any plist files, then reinstall, as I doubt the iMac has 4 fans. I too have used SMC FC on my Mac Pro for over 3 years with no problems. Nonetheless, I do also have Applecare as well.

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