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View Full Version : Macbook Air gets hot after waking up




fisherwwj
Sep 22, 2011, 10:19 AM
I had a macbook air 13', 128G (mid 2011). I recently installed two updates (EFI and Thunderbolt). After that, every time I woke up the computer, CPU temperature starts to rise with even 0% CPU usage. It gets really hot (CPU temperature of 80 celcius) after 10 minutes and the fan drives me crazy. I have never had this problem before the updates. The solution is to restart the computer. Has anyone experienced the same problem?



NCMac
Sep 22, 2011, 12:19 PM
Same here! I have an i7 13". This thing always ran cool. Now with nothing running, cpu temp spikes and activity monitor shows nothing significant. After a reboot, cpu calms down. But your right...after a wake from sleep is when it gets crazy. I hate not knowing whats causing my Air to become a frying pan :D incidentally, my wife's i5 11" Air does not seem to have this issue.

fisherwwj
Sep 22, 2011, 12:36 PM
Mine has an i5.

phamduc.minhanh
Sep 22, 2011, 12:42 PM
I had a macbook air 13', 128G (mid 2011). I recently installed two updates (EFI and Thunderbolt). After that, every time I woke up the computer, CPU temperature starts to rise with even 0% CPU usage. It gets really hot (CPU temperature of 80 celcius) after 10 minutes and the fan drives me crazy. I have never had this problem before the updates. The solution is to restart the computer. Has anyone experienced the same problem?

Same here! I have an i7 13". This thing always ran cool. Now with nothing running, cpu temp spikes and activity monitor shows nothing significant. After a reboot, cpu calms down. But your right...after a wake from sleep is when it gets crazy. I hate not knowing whats causing my Air to become a frying pan :D incidentally, my wife's i5 11" Air does not seem to have this issue.

Greetings,

I have installed all the updates, and the temperature of my MacBook Air CPU is always in the range of 50 - 60 degree Celsius. My fans always run at around 1900 - 2000 rpm. Your situation is a tad odd here.

I have also read somewhere that the i7 models usually have this overheating problem.

If this overheating issue bothers both of you much, you can try to contact Apple and see if they can repair or exchange a new machine for you.

Cheerio,

Pham Duc Minh Anh

qwerf123
Sep 22, 2011, 12:44 PM
I also noticed this after a wake but I find a reboot as the guy above states sorts it all out.

I also find issues with wifi after wake which I believe others are reporting for some time now. Suprised there been no update for this.

NCMac
Sep 22, 2011, 12:49 PM
My i7 never has had a heat issue until the latest round of updates (EFI and Thunderbolt). After a reboot it goes away until after it wakes from sleep. Its not at the point to return to Apple yet. Just trying to see if anyone else like the OP might be experiencing the same situation. Many smart people here so someone may have already had and isolated the problem or even fixed it.

octbit
Sep 23, 2011, 12:00 PM
Having the exact same issue on my 13'' i5. It can successfully come out of sleep 3 or 4 times without issue, but it will eventually start to overheat without explanation (IE, because some process running away, etc).

I agree this started sometime after the EFI or Thunderbolt update, but since they came out relatively close together, I'm not sure which would have actually caused it.

Brandon0448
Sep 23, 2011, 03:24 PM
I have the i7 and have never experienced any kind of overheating problems ever.

merrickdrfc
Oct 1, 2011, 04:23 AM
My 13" i5 is doing exactly the same after these updates

skyton
Oct 1, 2011, 04:53 AM
Interesting...think I might steer clear of these updates for a little while

teddy bear jr.
Oct 1, 2011, 09:53 PM
i'm having the exact same problem, only sometimes when it comes out of sleep it starts to get steaming hot and a restart cures whatever the problem is. i wonder if we can get a firmware update to fix the problem, there must be more of us experiencing this.

cpattersonv1
Oct 7, 2011, 11:04 AM
We'll see if the new thunderbolt update that's out fixes the issue. (Seems to be warming up already 44C at the moment) ambient room temp at the moment is 24C. I've had mine (13" i5) for a little over a week and now the issue is starting. It was fine when the ambient room temp was below 80F (26C), but I live in the Midwest and when the temp outside gets around 68F, the room temp goes into the low 80s.

I've also noticed that the machine retains heat after I close the lid. It looks like it vents through the keyboard possibly? Last night was the first time I'd heard the fan and I've used it for a couple of hundred hours. I shut it down and left it open in front of a fan (so passing air would remove the heat). After restarting I did not have an issue (after about an hour). It had been warm until now, but 80c in the case is too hot. I'm sure it's like anything else, when components get hot, the work less efficiently, which makes them work more, which makes them hotter.

I wondered about this issue before I bought the Air since it seemed too good to be true that a laptop would have no visible ventilation. It is a cool machine, figuratively speaking for the moment.

cpattersonv1
Oct 7, 2011, 06:52 PM
I had to wait until a little later to test it... and yes... it's much worse now. Open the macbook air, opened skype to make a call, was on for 11 minutes when I looked at the 82C temperature on the CPU. That's a bit high. It was off for about 4 hours prior.

jtnire
Nov 14, 2011, 01:22 PM
Hi Everyone,

This is an issue with the EFI2.1 update. I have been able to reproduce this problem on 3 Mac Book Airs. (two i7, and one i5)

The genius at the Apple Store was able to reproduce it, however the engineers at Apple HQ were not able to on their test machines.

Everybody who has noticed this issue (and I say notice, as I'm convinced all MBAs do this after the EFI update), needs to take their MBAs back to the Apple Store to let them know.

This issue is reproducible in the following way:

1) Let MBA sleep on battery for about 90 minutes
2) Plug Power in and then immediately open lid
3) Wait about 10 minutes and temp will be close to 80 degrease (while CPU is idle 100%)

So please, let your Apple Store know about this

warfed
Nov 14, 2011, 02:14 PM
I ruled out a hardware issue with mine, and it looks like it indeed is an EFI issue.

I demoed this problem to a genius, he dismissed it as Airs get warm and they can't trust non apple temperature reporting software, and decided to run their diagnostics.

To my surprise it didn't pass the test... it didn't even load the test. He concluded it's a faulty logic board the the heat is a symptom of that.

Well now I have a new logic board and a new I/O board. First thing I did was install the newest EFI and test the problem... still exists.

Oh, and an easier "fix" is to close and open the lid instead of restarting the computer. Or you can disable deep sleep, but that will drain more battery overnight.

bbhegedus
Nov 15, 2011, 06:06 PM
I thought I was alone! I just noticed this problem today after I installed the updates yesterday. I opened up my 11" 2011 Air today (the higher end one) and left it open while I went to go make a cup of coffee, I had Sparrow, twitter and Safari open. The fans were running at 4500rpm because I had never switched them back down since watching a movie the previous night. When I came back, about 5 minutes later, the CPU was 80+ degrees Celsius! Even with the fans running that high! Now that I restarted the computer though, the CPU is back in the 50s with fans on 2500rpm.

amoda
Nov 17, 2011, 01:49 AM
Same thing here! Glad I found this post.

http://img267.imageshack.us/img267/28/activitymonitor.png

http://img689.imageshack.us/img689/855/tempgd.png

ckkboy
Dec 29, 2011, 07:21 PM
To me, this issue happen every time I connect the charger, open the lid, and start using it.
I found another way to solve this issue.
Open the lid, then connect the charger, not the other way around.
So far it's working properly, even after using flash, my MBA was around 80'C in CPU with fan at 2500rpm

iaymnu
Dec 31, 2011, 09:42 AM
When was this EFI update issued.? My mac is currently up to date and don't see this in software update. I tried to replicate this I can't.

Lurchdubious
Mar 1, 2012, 07:38 PM
I'm having the same issue with my 13" i5. Annoying!

falterego
Mar 19, 2012, 11:35 AM
I've also got the 13" 2011 i5 model with the same thing happening. I have SMC fan control and even turning it up to 5500 RPM didn't make a dent in the temperature. I shut down for a minute and turned back on and everything went back to normal. It's only happened once about a week ago. The computer hangs out in sleep and gets a restart usually about once a week.

Not sure when the EFI update was installed, so I can't be sure if this happened before or after. Hopefully it doesn't keep happening because it is quite annoying.

jtamac
Mar 19, 2012, 09:49 PM
I have the same issue with my 13" i5

msgph
Mar 27, 2012, 10:44 AM
Bump

Having the same issue on my MBP i7, just noticed recently as well. It does recover after a while (like 5-10mins) but it's annoying specially when you play games it gets really hot before the fans kicks in again.

Surely
Apr 4, 2012, 12:54 PM
I'm rather annoyed by the heat/fan issues that I've been having as well.

It doesn't happen every time I use my MBA, but I'd say more often than not.

I open it, and it awakes from sleep. Sometimes the heat starts rising immediately, and sometimes it happes later on while I'm using it.

The only applications I have running are Mail, Chrome, and TextEdit. I see no reason as to why the temperature rises to around 70, and the fans start spinning to cool it down.

If I shut the lid of the MBA to put it to sleep, the screen goes off, but the fans keep spinning (it doesn't really go to sleep). The only way to correct the problem is to restart. Sometimes I have to restart 3-4 times a day. Once I restart, the temperature drops down to normal, and the fans stop spinning.

Does anyone have any ideas on how to correct this?

334165

warfed
Apr 4, 2012, 05:26 PM
Does anyone have any ideas on how to correct this?

334165

Yes, make a habit of first waking your Air and then plugging it in. Yeah it's not ideal but works... I haven't really had this problem for months, the most annoying thing was reminding my wife to do the same.

Surely
Apr 4, 2012, 07:26 PM
Yes, make a habit of first waking your Air and then plugging it in. Yeah it's not ideal but works... I haven't really had this problem for months, the most annoying thing was reminding my wife to do the same.

But what if it's plugged in when it's asleep? You want me to unplug it, wake it, and then plug it in again?

This is not a reasonable or acceptable solution.

halledise
Apr 4, 2012, 07:51 PM
reset the SMC

****************EKE5

warfed
Apr 4, 2012, 09:37 PM
But what if it's plugged in when it's asleep? You want me to unplug it, wake it, and then plug it in again?

This is not a reasonable or acceptable solution.

If it's pluggin in while it's asleep this bug shouldn't exist. At least not in the form that has been reported by other users. Are you sue you don't have a rogue process running? In your screen shot window server is using 11% of you CPU, what is your computer doing?

Try resetting your SMC as suggested above.

MJedi
Apr 5, 2012, 03:04 PM
I posted this same issue a while back, and the workaround posted here is the only way to prevent this from happening. Otherwise, you have to reboot. Has anyone tried the "latest" firmware available? It was EFI Firmware Update 2.4, released in February 23, 2012. Does that resolve this issue?

I suggest submitting this issue to Apple through here:

http://www.apple.com/feedback/macbookair.html

MJedi
Apr 8, 2012, 09:32 PM
The new firmware did NOT fix this issue. So frustrating. :mad:

Surely
Apr 9, 2012, 11:51 PM
reset the SMC

****************EKE5

This did not fix the problem. I have an appointment at the Apple Store tomorrow.

*awesome*

MJedi
Apr 11, 2012, 11:37 AM
This did not fix the problem. I have an appointment at the Apple Store tomorrow.

*awesome*
Let us know how this goes, and what was their solution.

Surely
Apr 11, 2012, 01:04 PM
Let us know how this goes, and what was their solution.

I took it in yesterday and explained the issue. They wanted me to leave it overnight for testing, but it wasn't convenient for me.

While I was there, I suggested that I try to get the issue to happen so I could show them, but of course, it wouldn't happen. I was there surfing and doing some light work for around 45 minutes before I decided to give up. I did show them the screenshot of my Activity Monitor that I posted in this thread on April 4th.

The strange thing is that it hasn't happened since my last post in this thread on April 9th. So maybe, somehow, the problem has corrected itself. *fingers crossed*

I suppose it's possible that resetting the SMC corrected the problem, but it occurred a few times even after I did that.

I'm confused, but if it doesn't happen again, I'm happy.

Surely
Apr 19, 2012, 09:57 PM
So....it happened again.:rolleyes:

And a new problem started happening: when I put my MBA to sleep (by closing the lid or by clicking "sleep" in the :apple: menu), the fans would continue to run. I know that I mentioned something similar in a post above, but this was different. The fans would run at a low speed (probably around 2000 rpm) while the MBA was asleep. Also, it would stay warm in the area near the magsafe port whether it was being used or if it was asleep. If I unplugged the magsafe, the fans would stop and the machine would cool down eventually. As soon as I plugged it back in, the fans would start up again.

I took it to the Genius Bar again, and this time I left it overnight for testing. The testing didn't find anything, and after a chat with the guy, he came to the conclusion that perhaps the OS was corrupt, so he suggested that I reinstall Lion. Shrug. Okay.

I backed everything up (with CCC to one drive and with TM to another), and then booted in Lion Recovery mode (http://support.apple.com/kb/HT4718). I selected "Reinstall Mac OS X", and went through that. I expected my machine to have a completely fresh OS, but when it restarted after it was finished, all of my data was still there. I guess I was supposed to erase the MBA's SSD first?:confused:

Anyway, I did that all 2 days ago. All of my problems seemed to have cleared up. No heat or fan issues since. Yay?*



*I'm still trying to determine if the fix will be permanent:p

v0vets
Apr 30, 2012, 06:14 AM
I've got the same problem. SMC reset didn't help. Now trying to use sleep only mode as suggested here earlier. Will write about the results.

bp1000
Jul 2, 2012, 03:26 PM
Just to note i still get this issue and haven't found a fix for it apart from the work around posted which is if the MBA was sleeping without the charger connected, dont plug in the charger until you mba is awake.

Surely
Jul 2, 2012, 03:36 PM
Just to note i still get this issue and haven't found a fix for it apart from the work around posted which is if the MBA was sleeping without the charger connected, dont plug in the charger until you mba is awake.

Have you tried reinstalling the OS, like I did in post #34 ?