It's the late 2010 model, all aluminum, and sometimes the back of it and top, feel very hot/warm. Apple tests these things under conditions they normally would not and should not ever experience in the end user's home or office. And if they ever get to a dangerous level, your iMac will shut down automatically. I've done some heavy duty tasks for hours on end and they barely become audible, and the temps stay far below danger levels.
#Normal temperature smc fan control full#
If your iMac ever gets so hot that they automatically kick on to full speed, you're using something that's just beating it to death.
The fans do change speeds, but they do not, and should never have to, get to full speed unless your computer is getting WAY beyond the temps it should be at. Post which temps you specifically worry about, if you want? But in my opinion, Apple knows what they are doing. Personally, I think you're probably fine.
#Normal temperature smc fan control free#
(I don't know of any problems caused by it, but to be fair it would be wrong to say it's risk free ) Research before you try something like that, and remember that there's always a risk when you use programs like that. If you use it, and decide to go back and let the system manage itself, you'll have to uninstall it and reset the SMC. I am sure there are others but I don't know them. There are programs out there that can make it so that you control the fans. But some feel that lower temps are better, and wish to manually control their fan speeds. The studies and things I have read and seen, show that they stay (or at least my model) stays well within safe ranges. You'll hear disputes that they get too hot for the HDD for example. Some people are uncomfortable with the temps that Apple has engineered these machines to run at. When you're doing harder tasks, rendering videos, gaming, things like that, the temps will go up some, but the fans will keep them in safe ranges.
It should get to a certain temp if you're doing light tasks, such as browsing, emails, word processing, photos, etc. They should not "kick up" to full blast, ever. Rest assured, the fans run constantly If you write down the fan speeds that iStat shows, and check them as you're using the computer, they will increase and decrease with the temp.
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