Sleep makes MBP very hot.

10.4.11
Most times, it seems, when the MBP is put to sleep, it is very hot when I pick it up, later. anyone else experiencing this?

This has happened to me a couple of times too. According to my IStat widget, it's the CPU and CPU heat sink which are hot. The explanations in other replies that talk about some process hanging up seem the most logical. Another indicator is that upon wake-up from this scenario, a shutdown takes an unusually long time. Unfortunately when I came upon my computer in this state, I didn't think to run the IStat widget which would have told me what the CPU was doing.
Though this may be wrong (more learned advice welcome), I take some comfort in the fact that the temperatures, though hot, were within ranges told to me by folks on this same discussion forum as being tolerable -- roughly 60-70 degrees centigrade.

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MBP not waking from sleep and getting very hot

When my Mac Book Pro 15 inch is left for a period of time greater than approximately an hour and plugged in it should automatically go into sleep/hibernate mode. Something happens during this period but I can hear the fan running heavily, the MBP is very hot and I can do nothing to wake it. The only option I have found is to hold the power button down for a few seconds to power the unit off then back on. When the MBP restarts I am greeted with the message "The computer was restarted after Mac OX X quit unexpectedly". I have also seen many kernel panics occurr on a regular basis. This is a new Mac Book Pro and was recently sent back to Apple for diagnosis. I was told it was my third party memory but upon instaling my original Mac memory the problem is STILL present.
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Hi, I am having the sleep problem with my 17" MBP. When I shut the lid down and it goes to sleep mode for short periods it is ok but any period for longer than 1 hr it will not wake when I lift the lid or press any keys on the keypad. It was also turning itself on and going into sleep mode when I left it to charge overnight from a turned off state untill I sent it for repair. Now it just has the sleep problem, what I have noticed is that it does not play up when I start it up in Safe mode. I have just done the hardware test from the install disc and there were no problems, then I did the archive/Install bit and that did not solve it either. Ah well back on the phone tomorrow unless someone can shed any light!
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To all the MBP experts out there......maybe you can help ?
1. My MBP (46 months old) has been running VERY hot........that is, if you use it while putting it on your lap (bare skin contact), you'll get burned after a short while.
2. My battery (only 1 year old, 170 cycles) is dying, and the MBP switches itself to sleep mode when the charge reaches about 40-50%. From full charge, it only takes about 30 minutes to reach 40-50%.
Here's the tricky one.......Coconut battery could say that max capacity is 55% one day, and 80% another day, and then 35% another day..........what's with the variability ??
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Since your Mac is fairly old, nearly 4 years, it is more then likely clogged with dust in the fan intake and exhaust area.
First thing to do is clean the dust out.
Second thing to do is take it to and Apple Genius Bar or AASP and have it checked for the Bad NVidia Graphic chip as your model is one of these.
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MacBook not going to sleep and getting very hot

I just purchased a MacBook and have been using it for a few days. I have noticed that it does not appear to go to sleep correctly and gets very hot in the process. I finished working on my MB about 45 minutes ago. At the time it was connected to the mains and I disconnected to catch my next train. I shut the lid and after a few minutes the sleep indicator light at the front dimmed once then stayed on permanently. I could not hear the drive spinning (though the drive is quiet on this machine and there was a lot of background noise) and assumed all was OK. Anyhow, I have just taken the MB out of its case some 45 minutes later and it felt extremely hot (almost too hot to touch, I would guess around 50ºC). The sleep indicator light on the front was solid white. I opened the lid and the machine woke up. Something not right here....Also power remaining was down to 72% so something has been using up a lot of energy and heating up the aluminium!
Tony
ps. Whilst writing this email the MB has cooled down considerably but still warm.
ps2. Probably not related, but I have firmware password protection enabled
null

I did see some of the other posts, but nothing about the MB getting so hot.
I tried sleep from the menu and this seems to work (though I have rebooted the machine since the above report).
What worries me is the potential fire risk/damage to the MB, the case was extremely hot.
Tony

MBP very hot after firmware 1.5 update

Hi.
Anybody else had this issue ?
I think it started after i updated the firmware on my MBP 2.4Ghz to v1.5
Now idle temp is around 62c all the time and the fans starts to run very fast
only with little activity.
I did check if anything was running the CPU 100% "Activity manager"
Nothing. CPU 3% with 5 apps running. And i also ran the Diagnostic disc (AHT)
Before the 1.5 update i never heard the fans really but now they starts
a lot more often and that means the heat went up (Ofcause)
Anything to do ? I want it back to the old behavior much more quiet and nice.
Not to speak about in the long run. It will last longer that way i´m sure.
Would love to hear if anybody have some ideas.

Crazy. All this started after a stupid firmware update. I mean. How stupid is that.
My MBP 2.4Ghz was clean silence and not this hot. Its from Feb 2008.
After the 1.5 firmware it got hotter for sure.
Mine is lifted 10cm over the table and still very hot idle.
CPU temp 62c
CPU core 1 & 2 is 63c-64c
And this is only idle ! before it was a lot cooler.
I remember i never heard the fans and thats why i found out something was wrong.
Now i hear the fans with only small things like browsing with safari and burn a DVD.
Check here.
http://www.intelmactemp.com/list?vmodel=32&v_cpufreq=&v_memory=&v_hddsize=&v_hddrpm=&v_serial=&v_macosxver=&v_ambi ent_1=&v_ambient_2=&v_idleoem_1=&v_idleoem_2=&v_loadoem_1=&v_loadoem_2=&v_hddtem p_1=&v_hddtemp_2=&v_whine=&v_moo=&vpostedby=
My model should be between 45c - 52c that would be more normal for my 2.4ghz model.
Could i go to Apple and get a new computer with this issue ? would that be enough ?

FanControl makes a VERY hot MBP 20 degrees cooler!!!

I have been amazed at how much cooler my MBP (10th week model). I was running well over 150 degrees F before i installed "FanControl" program that becomes a part of your System Preferences. Now, my MBP runs 115 to like no warmer than 120. I mean this program is amazing.
Anyone else use that program or any of the other heat programs to help the MacBook pros cool themselves off? And if so, how have you found them to work? Any better than the one Im using any drawbacks that anyone has heard of.

I also installed Fan Control and totally agree - it works extremely well, and has finally turned the MBP into a practical 'laptop'.
By keeping the fans turning over slowly all the time, and slightly increasing the fan speed the moment the machine starts to heat up, it keeps the external casing temperature no more than comfortably warm.
Reported internal temperature is now rarely above 60°C (140°F) and the fans usually run so slowly they are inaudible. I presume this is causing some hit on battery life, but it's not enough to be conspicuous.
Can't see why this would have any impact on the warranty - it is just a piece of software, and is not interrupting any normal behaviour of the machine - just fine-tuning the fan operation.
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I updated the 1.3 SMC firmware for more than a week and notice it getting really hot. For some reason in system profiler it says 1.27. That's not the problem I just want to know if there is a way to rev up the fan speed?
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.5 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP41.00C1.B03
SMC Version (system): 1.27f2
Serial Number (system):
Sudden Motion Sensor:
State: Enabled

.....and notice it getting really hot
Do you have a utility to read the actual temps? Sometimes what "feels hot" to us is within specs for an intel laptop. I like this Dashboard utility for temps:
http://www.apple.com/downloads/dashboard/status/istatpro.html

MBP very hot

Serial W86233
First, I should say this is my first laptop so I really have nothing to compare it to BUT It does get really hot. How do I know what too hot is? Is this a warranty issue that Apple will support?

You can download a temp monitor to see the temps on your HD, core 1 and core 2. Here is a link http://www.bresink.de/osx/TemperatureMonitor.html
Also you can download the Hardware monitor too, you only have those 3 sensors anyway so it doesn't matter. The average is somewhere around 60C give or take 10 or so degrees. It can vary greatly though, I can run from 28C to 65C in a few minutes. As long as your under a 100 your ok, they do run hot anyway.

MPB gets very hot while in sleep mode and won't come back on

I've had this happen to me twice now, and I'm not sure what's causing it. Here's what happens.
I put the MPB into sleep mode, put it in my backpack, and when I open it a couple hours later, the machine is very hot to the touch and the fan is whirring away. On opening the lid, the display will not come back and the only way to fix it is a hard restart.
I checked the battery indicator on the side, and surprisingly, it had 3-4 green dots, so it had plenty of power.
The only common denominator I can come up with is that both times this has happened I had been using Fusion 2.01 during the day, but had closed out of it before putting the computer to sleep.
Any input would be welcome!

OK, we are clearly on the same page. We can now exclude (in all probability -- see below)) the lid coming open.
BocaBoy wrote:
Graham, thanks for the response. Since this happened the first time, I've been very careful about making sure the lid is closed and that the Apple light is out. I have seen the light go out, come back on a few seconds later, then go back out again.
Pulsating. A one-second on/off display of that light?
Yes, I'm referring to VMWare Fusion 2.01. This problem only seems to occur when, during the day, I have been in Fusion running my Boot Camp partition as a VM. I want to stress the fact that I close out of Fusion before I put the computer to sleep. I agree that there is something that Fusion is doing to the display adapter that may be causing this problem. The argument against that is that it isn't consistent. There are times I've used Fusion and successfully put the computer to sleep.
OK, so then if this works sometimes, what is different about these times. When you use the Windows software (or even the Mac software come to that -- there could be a conflict) is there any software that may still be trying to access the internet or other processes (in my earlier reply I mentioned iStumbler -- a network utility -- that caused me some slight annoyance until I realised what was going on).
The only other thing I can think of is that if my car goes over a bump that the lid is bouncing opening slightly, causing it to flick on from sleep mode, then go back into sleep. The fit, however, is tight and secure in my pack, so I'm really skeptical of that explanation.
Agree. Although it should not be excluded 100% until proven. Keep an open mind. I take mine on Bangkok buses and believe me, they bounce. I have never had my MBP come on.
No I haven't done any "maintenance" except being manic about doing a SuperDuper backup once a week along with Time Machine. What do you suggest?
Glad to hear about the TM: I wish more would back up.
I think if this were me (it has been) and I were having to do a forced power off, then my first reaction would be to try a safe boot; and then to boot up again. That at least would deal with any stray temp files and/or processes that were cut short. If this happens too often, I would be looking to stronger utilities, more to be on the safe side than to make repairs.
I would also be looking in the Console: a check of the times between when you sent it off to sleep and the time you found it at work, might show what is waking it up. Also, when you do find it running (and can get in) see which processes are active at that time. If you cannot, then the Console is your only resource, methinks.

Brand new MBP 13inch VERY HOT

So i bought my new MBP 13inch about a month ago and ive noticed that it is slower than my old macbook (black 2007 model) dispite haveing double the ram and a better processor. Also I have noticed that it has become very hot. It starts after about 15minutes of use and it stays very hot. I can not have it on my lap.
Ive gone to the genius bar once for both of these problems and was told that everything is fine, but I cannot accept that since it is slower and so much hotter than my old macbook. I think this specific laptop may be a lemon.
Anyone know if these problems are normal?

Cook Book wrote:
.....Another thing that happened. Today i was watching youtube videos on my MBP and the screen would go to black, I thought the computer went to sleep but it was completely unresponsive. After a few attempts at trying to get it to wake up(with no luck) I decided to kill the power. After waiting a minute with the computer being off i just hit the power button again and the computer would start up and begin loading, but after a few seconds it would die again. I went through this process 4-5 times before it would fully load......
Sounds like the logic board may already be in its death throes.....if LB does die soon, then insist on a replacement MBP; the logic board IS a weak point on MBPs and LB failure is not uncommon.
Welcome to the world of declining MBP quality and reliability...."sigh".
Anyway, as I've said, time and again, anyone who purchases a new MBP should definitely purchase an AppleCare extended warranty before the one year warranty runs out.
A MBP owner without it is just playing Russian roulette.

When I turn on my Macbook pro retina display i get a black screen and i noticed that the machine gets very hot, any clue how to make it work?

When I turn on my Macbook pro retina display, a black screen show up while I hear the normal start up sound. I noticed that the machine gets very hot, any clue how to make it work?

If the Mac is too hot to touch, take it in for service.
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Play Simcity 2000 in boxer, MBP become very hot

Hi mac people,
last time downloaded boxer and simcity 2000 cd collection, i never change any setting and the game setting leave it as default, but then my mac become very hot near the charging part( like super hot!!!), so I go setting and have check, the cpu speed is tuned at max, and my mac activity monitor showed 8 core is running almost at max!!!!(I only opening this app!),
Does everyone know how to change the setting for boxer and simcity 2000?
Because of this, my mac logic board is burn and change one in the warranty period because of this(BUT THE TRUE IS, I changed totally three logic board near the end of the warranty period!! make me buy a apple care which cost me to spend more hard earn money!)
Does you all have the same problem, or only me?

Use a Windows 3D gaming tower to play games, it's why they mod them with elaborate cooling.
Windows operating system versions get a decade of support on average, you can open them up and clean the dust out and you can upgrade the video card.
The Mac strikes out in all three, you only killing the expensive Mac prematurely.
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MBP -
the surface temperature of key board plane is very hot ( 107F ) when in normal operation without plug in the charger. Is it normal ???

The temperatures that your MBP will generate are a function of the number and types of applications in use. Until that is information is provided, no valid advice can be afforded you.
If you want to pursue this, download and install iStat menus:
http://bjango.com/mac/istatmenus/
Open Activity Monitor to ALL PROCESSES and set CPU to display values from high to low.
When you believe that your MBP is 'hot', take screen shots of both and post the images for inspection.
Ciao.

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I just bought a MacBook Pro 15" 2.4 which is a lovely laptop.
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The problem is that my MBP also gets very hot to the left of the mouse pad (even when it's not doing anything, with 98% idle time).
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MBP's just run vicious hot. i have woken up too many nights with mine burning my crotch. has to be some long term effects from that... you need to just manage the problem by keeping it raised on a cooling platform. i have gone as far as filling a ziplock baggie with crushed ice, and running the machine on the ice pack. best to be sure there is air that can pass below the machine when operating.

Sleep makes MBP very hot.

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