Does the OSx Lion update 10.7.1 fix 2011 MacBook pro heat issues?

Software absolutely can contribute to hardware failure; , however in the instance of a MacBook I doubt this is the case. I have first hand knowledge that certain embedded software programs are designed to cause hardware failure and/or usability. Go ask Iran about this nuclear program...

As stated before, I was only replying to the topic from this forum. I own a 13" MacBook Pro early 2011, I update the OS to Lion 10.7.1 and I am experiencing overheating issues that I never faced before running Snow Leopard.

If this is not an Lion OS issue what could it be ??? Maybe the current apps I am running are not optimized to run under this new OS ? Hope this will be fixed soon in any case cause this is a daily nightmare to suffer the fan cooling noise

A few questions/comments:

1. Have you removed the back cover (i.e. memory upgrade, etc...)? If so, I would wonder whether you have electrostatic discharge damage?

2. Have you run a diagnistic test? I don't remember the instructions but read them in the discussion forum somewhere.

3. Is this during clamsheel mode or open?

I read Brody's comment and wonder whether he's correct in his suggestions. I know I am guilty of idead stuck in my head too...

Hopefully you figure this out...

Could this heat issue be realted to why my MacBook Pro is refusing to boot after an unexpected shutdown? ( I'm new here, and I just posted a thread about my '09 MBP issues) a few hours after I udpated to 10.7.1? My computer did seem to be running kind of hot, and now it won't boot. There is also no indicator when I press the battery button (no flashing, no full bar, nothing), but the MagSafe connector is bright green.

Hi Igglesfan, Thanks for your comments/questions. Nothing external has changed to affect my MacBook Pro other than the overheating problem which started immediately (upon reboot) after installing 10.6.8 pre-Lion update. As an IT specialist, I've gone the gamut of troubleshooting and nothing works. Brody's suggestions are not relevant to my problem. Apple Care support suggested I downgrade my operating system or have the Genius Bar do it. Which at this point and time permitting, I will do - and will post my results afterwards.

Hi,

I have found that in the activity monitor that the "AGAdminservice" overloaded my CPU at 100% causing overheating.

So go to this discussion topic : https://discussions.apple.com/thread/3191543

I copy and past a terminal command to deactivate this service and now both my fans and CPU calmed down. Instantanely my CPU temperature went back from 80° to 46° and my fans at 2000 rpm :-))

Issue closed ;-)

Enjor your MBP with Lion !!!!

Of course this tip is useful only if you have Citrix Online plugin installed on your Mac. If not, there should be another issue.

After the 10.7.1 update still running much hotter then on Snow Leopard on my macbook pro 13 ssd 2009.

Fans used to never kick in now it's all the time!

Gilles ph,
Welcome to Apple Support Communities!

Fans on their own should not be a concern unless they are beyond your level of tolerance for noise. In that event I'd bring it in to a service center even if the hardware test determines nothing is wrong, and ask them to listen to it in a quiet room at least half an hour after being outside of a noisy environment. If they determine it is within the normal amount still, and no hardware test shows any problem, and there are no other issues like unexpected shut downs, or frequent prolonged un force quitable freezes (command-option-escape offers force quit) that aren't explanable by lack of hard disk space or incompatible programs you may want to seriously consider getting a replacement machine. Regardless, please start a new topic thread here if you desire further advice regarding your situation:

https://discussions.apple.com/community/notebooks/macbook_pro?view=discussions

Heat detection software itself is unreliable, and should not be solely the basis for complaints, neither should fan noise. Combined other factors that indicate it is truly overtaxed, then you might want to consider it being looked into.

a brody wrote:

Software can't cause hardware to fail. [snip]

Ugh, ugh, BS, ugh, ugh..

Gerard,

In order for software to cause hardware to fail it must:

Change the condition of the circuits through some instruction in such a way to cause a short, overheating, etc... What causes shorts and overheating? Design failure in hardware, failure in hardware installations, design failure in power supply, RAM, capacitors, improper installation of cooling gels pads, all actual hardware events. Software alone is never the sole cause of a hardware failure. There is always a contributing factor that no one points to here when assuming software caused hardware failure. With every operating system update we get a claim that this update caused hardware to fail. So before you say software causes hardware failures, try to find a contributing cause that could allow that to happen. Software can't tell hardware to go to a circuit it is not designed to handle. The only thing that can cause a circuit to be jumped is lightning. That is not a software instruction. So if we are to blame the operating system for causing heat issues, we must also assume that the operating system can somehow tell the heat sensors to fail to work. That is highly unlikely. If you wish to discuss the matter, my e-mail is in my profile, and if I have time to look it over, I will.

Just like a number of other people, I was very happy using 10.6.8. Never a (big) problem.

Immediately after installing 10.7.0 the heat problem starts. And you are right in so far that software can not cause well build hardware to fail, I agree to that.

But surely it can contribute to the hardware getting very very hot, by using lost and lots of CPU.

And when many people experience these problems immediately after the installation of a new piece of software, then the coincidence is to large to not be a likely cause for the problem.

Gerard

That would make sense, except for one sole fact. I have a much less capable CPU than a lot of these people complaining about this overheating using 10.7 without any fans blowing. A MacBook Pro 3,1 with just a Core2Duo, with nothing more than 2 GB of RAM. I think the heat issue, if there is one, needs to be pointed elsewhere. And it can't be explained by smcFanControl either, because Apple does not publish the heat sensor trip points to the general public, nor how to access every heat indicator the machine may use. smcFanControl, and other such software can barely be an arbitrary measure of when heat becomes a problem. Other issues must crop up before you can definitively say heat is an issue. How can a much less capable CPU not overheat more than one that is much newer and many more cores? Ever thought to explain that? If the operating system is the sole cause, it would tax the less capable CPU much more, and would cause it overheat more often. But it does not.

I am ending my end of this debate. you will ever be right in your own ever shrinking universe, countering the facts that are presented to you with your own valued opinions.

Bye

Hi Gerard,

Your overheading issues are real as I've experienced the same thing as you. Before I came to this forum, I searched the internet and found many discussions on this same subject, a few of the links below. I thought that joining this forum would helpful in resolving my issues however I didn't expect to be attacked and stonewalled by the likes of 'a brody' who seems as arrogant and opinionated as some of my IT colleagues who add no value but their high opinon of themselves.

For your information, the only way I was able to resolve my overheating was to downgrade my system to Snow Leopard 10.6.7. Overheating problems and over taxed fan - Gone. My cool MacBook Pro is back.

Take that 'a Brody' and stuff it.

http://www.product-reviews.net/2011/07/28/overheating-os-x-lion-mac-app-solution -for-now/

http://macbookcafe.com/2011/07/os-x-lion-overheating-macbook-pro-and-imac/

http://electronspy.com/os-x-lion-overheating-macbook-pro-and-imac/