Problems of excessive noise and fan performance.

(I found a few similar posts, none seem to have any kind of resolution. I already submitted details to the comments for OS - X and MacBook Pro, because I know that Apple doesn't really care these forums.)

I'm computer LITERATE in a company with more than 40 Macs. Most are 15 "and 13" MacBook Pro retinas, with some older MacBook Pro, MacBook Air and Mac mini. Almost all have had many problems of performance and especially complaints relating to noise fan since the upgrade to El Capitan.

All Macs seem to rotate at about twice their original fan speed, even at idle with nothing else running in the foreground. If something - it is actually worse with time and not better. Some of them seem to be entering a mode "overheating" and the limitation of the CPU frequently, even with no real warning to the user. We receive complaints from fans go "full throttle" and not something unusual applications of grinding to a halt, while the activity monitor recount. Even these days - I'm writing this, my MacBook Pro runs only Safari and mail and fans just 15 "kicking until probably at 80% for no apparent reason. The CPU load is only about 8% currently according to activity monitor.

The usual "fix" to a SMC reset and a clean install of the operating system seems to have no effect. We spent a lot of time in recent weeks reset wiping of Macs to try to resolve these problems. They are located on machines that have been almost completely unless they were actually under heavy load (such as virtual computers running or doing graphics/video editing), with the only change being an 'upgrade' to El Capitan.

New - the same questions and complaints are reported in almost all of our Macs. I noticed similar problems on my MBP of House. I have a Mac Mini in my office who spends just Safari to view a network monitor page. It used to be silent and cycles now the fan and turns off often.

At least while taking into account what is actually run on them, as well as information from the activity monitor, it does not appear that the CPU is overheating. It seems that something has gone wrong with the heat in recent management, as El Capitan assign a lower threshold than before well. I am everything to keep these systems cool, especially since Mbit/s in particular seem to run pretty hot anyway, but when the noise of the fans like a small jet taking off-it is a problem for many people.

If anyone has found a solution to this, I'd love to hear it. Otherwise - if you are having similar problems - please send to Apple Feedback then perhaps they will at least look at or respond.

If you run any antivirus Mac remove the system. A 3rd party cleaning or maintenance or utility network, any 3rd party firewall they are infamous resource pigs and Mac AV is responsible for a good part of mac OS that any other type of software while offering no protection against anything like that.

systems running 10.11 with 4 GB of RAM or less will spend a good amount of time cached and if this is the case look into upgrading your RAM, if it's an option.

If this isn't the case reset the SMC (which you did) followed by a PRAM reset as outline in this paper.

Reset the management system (SCM) controller on your Mac - Apple Support

Tags: Mac OS & System Software

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