VN7-571G fan shuts down in stress = overheating

Hello, I have 4 months old acer aspire VN7-571G-57MX. It has worked correctly before but now i have noticed for the last week that every time the machine is under hard stress mostly gaming, the fan does not work. I hear semi loud high pitch noice coming from the laptop but no fan sound and no air current. Ofcourse this means that the laptop overheats and i cannot use it as intended.. If I enter the desktop and wait around 10 mins for the computer to cool down, THEN the fan starts and the high pitching noice stops. So the fan actually works but only when no stress is applied to computer. The fan only shuts down in stress, which is ofcourse the opposite that it should be doing. I havent installed anything new lately, drivers are up to date:Model HD Graphics Family Device ID 8086-0A16 Driver version 10.18.10.3643GTX 850M = Driver version 353.30 Anyone experienced anything similar?I am thinking about updating the intel chipset with the intel drivers update utility and discarding acer installed ones but it says that it might cause techical issues. But can it be worse then this?

Hi lucachenko, Make sure all updates are installed, you can try installing the intel drivers of course but i think you might have to end up contacting support because overheating and fan issues are not any good for your laptop and the more you keep using it like that the more problems are going to start appearing.

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IMac shuts down...overheating? Fan not working?

Our daughter reported that her iMac G4, 1.25gHz, had randomly shut down on her a week or so ago. I got it up and going again with a PMU reset, but it needed another one the next day.
Daughter's now moved onto a different machine so no worries about data loss, but I'd like to fix the iMac if possible.
It checks out okay with the AHT, and Drive Genius successfully repaired some disk errors. However while continuing to run tests, it shut down on me again. I noticed though that the case was pretty warm, so I just unplugged it and left it, and when I came back a few hours later was able to restart it. And then I noticed that it was running very quiet...because the fan does not seem to be running.
I have it going now to see if the fan kicks in, but so far nothing. Looking through the top, the fan blades are covered in dust. I can make them turn by poking a paperclip in.
Unfortunately none of the utilities that would allow me to investigate this on a more recent machine (Temperature Monitor, smcfan) work on the iMac.
I'll try blowing out the dust, and I know that the machine can be disassembled and cleaned, even the fan bearings oiled, but of course I wonder if there are any other options.
The iMac is superfluous for us at this point and we'll probably be giving it away, so I'd like it to work.
Thanks for any help!

In the iMac G4, the fan runs constantly.
From the initial startup in a healthy machine,
the cooling fan is set to run; and as the heat
increases, eventually the fan should run faster.
Except for when the computer is asleep, off,
or if there is an issue in the hardware inside.
So, a loose wire, a failed sensor, a circuit;
or the fan itself may have a bad motor. A
wire inside the winding could be cracked.
If you can find a computer with other defects
for a low price or free, you could try another
fan from a another similar computer. This
would be much simpler if the computer were
not an all-in-one with the display attached...
A basic box with a fan, holes and ports.
Some older iMac G3 owners made headless
Macs several years ago, when their display
went bad; the whole thing fit into a small box.
And cooling fans, accessory peripherals, &
other items were added to expand function.
In my iMac G4 1.25 17" USB 2.0 computer,
in use right now, the sensor overview for the
Temperature Monitor shows as in the hard drive.
The version of this Monitor is 4.3.
In Temperature Monitor preferences, note the
Sensors click-on icon, if you click on that, see
what if anything appears. It should have a name
of the computer in there. Click on the disclosure
triangle to show more info. Look into the Temp
Monitor's preferences: Window and if there is a
name for a sensor there, click on it.
It is possible in more modern computers with more
sensors, to choose from those which may appear.
Also, if the General preference panel is set to get
a temperature sample to frequently, that may be
not a good idea, mine is set at 20 minutes, but
may be OK to sample more often.
In the preference item labeled Menu Bar in T.M.
you can choose to have the main Temperature
Monitor quit and also have TM Lite, launch.
Since I launch TM Lite version, and then use it
to see the main application if needed, I don't
need to look into the main one directly.
I am not sure what kinds of drive sensors each
brand of hard disk drive uses, but among my
Macs, this software works and I see the HDD
sensor primarily. These are basic, so the CPU
temperatures would be a guess, not sampled.
There is a widget iStat, which shows temp info
from the same sensor, apparently. I have the
widget's readout turned off on this point, so I
can have the menubar in Finder showing info
and not have to launch a widget to know it.
The rest of the iStat pro's applicable info shows.
The opposite of having a vacuum pull air out
of the top vents in an iMac G4, when the fan
has gone bad, would be to set the computer
on a semi-recessed base with air pushing up.
The air intake slotted holes around the base
can be slightly pressured into from below &
a furnace filter can be used to keep debris out.
Have you looked in a local craigslist for a failed
iMac G4 (near the vintage of yours) to see if
you can get one for next to nothing, for parts?
Sometimes, you can get lucky. Some get tossed
and are full of great parts...
Good luck & happy computing!

Mac mini appears to be shutting down due to overheating fan is running, but not strongly

late 2012 mac mini shuts down after running several minutes in a streaming task environment. Fan is running, but not very forceful. wondering if the fan itself has a temperature sensor that causes the fan to engage in higher rpms or if that sensor/command comes from somewhere else in the computer

Install a temperature/fan speed app.. I use the free Macs Fan Control app downloaded from the internet. Yes, there are temperature sensors that contorl fan speed
http://www.crystalidea.com/macs-fan-control

Anyone else seeing their MBP's shut down due to overheating and no fans?

I have a 2 month old MBP that overheats and locks up when playing World of Warcraft in OS X. The processor temp will get to 100-105 and the MBP locks up and requires a forced hard boot. The fans don't spin up - they stay at 2k.
Also, on the Windows side (64 bit Vista), the upper left hand corner of the chassis gets extremely hot - again no fans spin up.
I have resorted to using smcFanControl to manage the fans in order to prevent overheating. I have seen many people post about this exact same problem on these boards - does anyone have any advice? I am concerned that I am frying the hardware over time!
I called Apple tech support and they say they have no knowledge of this being an issue.

No problem here, at first my fans were stuck at 2k regardless of the temps. I reset the SMC and that (at least for me) fixed the problem.
While I use and advocate the use of smcFanControl, I recommend that you get your laptop repaired (or replaced). Now with that said, there seems to be quite a number of threads of WOW users who complain about the heat being generated from using that game and likewise, it seems pretty evident that using Vista means your laptop will be running hot for what ever reason.
If your fans are not ramping up beyond 2k in OSX, then that's not right, if its running hot in vista or playing WOW then that might be another issue.

Tecra S3: Notebook shuts down due to overheating

Whenenver I run CPU-intensive processes on my laptop, the computer's base and the table become untouchably hot and the laptop shuts down without any warning after a certain time.
What can I do?

Hi Kersten
May I ask you how long do you use this notebook??? Did this issue appear in the past???
Mostly such overheating problems happen and are present because the cooling modules dont work properly the dust and debris inside the notebook prevents the fans from rotation with full performance this rises the temperature to the critical level and the notebook shuts down automatically to prevent the hardware from damage.
So in such case its advisable to check the cooling modules and to clean it. The vacuuming could help but be careful such procedure could damage the fans!!!
So maybe you will ask a technician or a Toshiba service partner for a help and for a professional cleaning
good luck

Macbook Pro i5 2.4Ghz shutting down due to overheating

I recently upgraded my 5yr old Macbook Core Duo to a nice, shiny new Macbook Pro i5 2.Ghz. I'm absolutely in love with it in every way possible except for one issue I'm having:
When I play Company of Heroes on Windows 7, I've had the Macbook shut down three times so far. After the first time, I felt the area just above the F1 / F2 keys and it was extremely hot to touch. I downloaded CoreTemp and Hardware Monitor to test for temperatures and discovered the Macbook is set to auto-shutdown once CPU temperatures reach 105C.
Is this normal? I've had the Macbook for four days now and wondering if this is a common problem. I've since gone out and bought a Coolermaster NotePal U2 notebook cooler, but I am a little reluctant to do any heavy gaming on this now.
Should I take this in to an Apple Service Center to be checked?
Just to clarify, in an airconditioned room with ambient temps of 24.5C, using the Coolermaster stand, the Macbook is idling with temps of:
CPU #0 53C
CPU #1 57C
Low 50C
High 97C (during Company of Heroes 5 mins ago)
Thanks in advance

Hardware Monitor had them running at 5517 rpm or something close to that. Perhaps Windows 7 has less effective power / fan management than Snow Leopard, I don't know. I've been wanting to try out a game from Steam for OSX so I may post back with more results.
What I'm worried about is the fact that it is shutting down at all. Safety mechanism or not, I would rather my computer not shut itself down while I'm in the middle of doing something.
Just on a side note, I found that sliding the Macbook down off the rubber pads on the Coolermaster stand so that the bottom vent is directly over the fans of the stand dropped the idle temps in OSX to 36C. Pretty impressive. If the Macbook is placed as it is shown in the instruction card (on the rubber pads) the idle temp goes up to 41C.

How to start up macbook pro after shutting down because of overheating??

My macbook pro always overheat because i live in a tropical country and my mac temp (from istatpro) averange is 60 in the top hole and 35-40 on the body. But this can go up even higher until 80 . I only have this mac for 2 month and my very first ,it makes me worried.
How to start it up?? Its been 1 hour since it shutting down while im typing this.

Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Best.

Fans, Shutting Down, etc.

I have had my iMac G5 since January of 2005 and it has been working fine up until about a month ago. I have noticed a lot of people have had the same problems, but I haven't seen anything with both of these. So I will go through the whole problem.
First problem I started having was the fan noise. It became noticeable about a month ago when I would play something in Quicktime or run something through the Compressor program that the fans will go on high speed and never slow down till the program was terminated.
After doing some quick research, I decided to reset the SMU. It went back to normal for about a day and then it started acting up again. I decided just for kicks to run a virus scan, which also makes the fans run like crazy, and suddenly, the computer powers down. To make sure this wasn't a fluke, I did the led diagnostic, resetted the SMU again and ran the virus scan. Once again the fans go crazy and then within 7 minutes, the computer shuts off again.
This is a pain because each time it does that I have to open the case up and perform the led diagnostic to it. So I was wondering if this is the problem that Apple will fix for free sine mine is unfortunately out of warranty, or I am basically going to need to open my wallet.
Oh and I also used the online support chat thing, and got nothing too.

If you're opening the back and working inside the computer, it's critical to make sure the back is put back correctly. If the little tabs at the top aren't seated properly, the ventilation system will not work properly, which can result in the iMac shutting itself down.
It's supposed to slow its clock speed and put itself to sleep before doing an emergency shutdown, but, at least on mine, it didn't. It just shutdown as the fans spun faster and faster. Once I replaced the back, making sure it was seated properly, I quit having this problem.
Because the error I got was the same as I got when the UPS drained out during a power failure, a wild guess on my part is that the iMac didn't shut itself down becaue it didn't get too hot, but that it was shutting itself down because the power supply couldn't supply enough power to the fans to spin them up as fast as the computer wanted. But that's just out and out conjecture on my part.
In any case, you can see the shutdown cause if you issue this command in the Terminal application once you restart:
dmesg | grep shutdownFor a normal shutdown, I think you'll see this:
AppleSMU -- shutdown cause = 1I was seeing -110 as the cause until I re-seated the back on my iMac. Unfortunately, those codes are not published, which would be highly useful.
charlie

Older Mac Mini Shuts Down due to Overheating

After researching this issue extensively and trying every suggestion, I finally began placing icepacks underneath my Craig'slist purchased Mac Mini to keep it cool. I must also keep the blinds shut to minimize solar heating and sometimes run the ceiling fan in my office. I also must watch the temp on SMC FanControl to make sure it does not rise above 130°. I'm now looking for an external cooling fan which I hope will keep this situation more permanently under control. Does anyone know of a good one? Remember, external fan, not internal. My hardware info is :
Hardware Overview:
Model Name: Mac mini
Model Identifier: Macmini2,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 2 GB
Bus Speed: 667 MHz
Boot ROM Version: MM21.009A.B00
SMC Version (system): 1.19f2
Serial Number (system): YM824031YL2
Hardware UUID: 00000000-0000-1000-8000-0016CBB0A806

To diagnose this, one really needs to know if the Mini's internal fan speeds up (and gets noisy) before the thermal shutdown occurs.
Not sure why you brought up "liquid cooling systems": the Mini has a standard CPU heatsink. There is no liquid cooling anywhere in the Mini.
Sometimes the contact between the CPU and heatsink gets compromised and the Mini can no longer keep the CPU cool. This is more likely to have occurred if the Mini has been modified or upgraded by the previous owner.

Laptop shutting down? Fan overheating?

Hi all.
I have read many topics on this forum about the fan on any laptop not working, the laptop overheating or the laptop seemingly randomly shutting down.
I have had this problem for about three months. I tried propping up the laptop so the fan (stupidly positioned on the middle of the base of the laptop!!) could get air. It didn't shut down, but it was ridiculous having to prop my laptop up everywhere I went, and fan was also ridiculously loud.
I took my laptop to a doctor and it turns out there was a fault with the chip on the motherboard that controls the fan. This caused the fan not to work properly, causing overheating, and the laptop shutting down.
I got it fixed and my laptop is now nice and quiet and I don't have to prop it up and it doesn't shut down.
Sorry if this is bad news! Hope you can get your laptops fixed!!
[Edited by: admin]

Bad news. Anyway thanks for the info.

Satellite L300 - Is overheating and shuts down

I've just got my laptop back after getting it fixed (new HDD & BIOS/FW update according to the sheet that came with it). But now another problem has developed with the laptop overheating & auto shutting down a lot as a result.
Is there any way to check that the fan is actually working inside as I think that it might not be?

Hello
Maybe you have to clean the notebook. What do you think about this?
I have Satellite L300 too and I clean it every 3 months. Im wondering how much dust comes out if I clean it using compressed air spray. This is very nice to clean the notebook because I dont have to disassemble the notebook and it takes only few minutes.
Compressed air spray you can buy from every computer shop so check this!!
Last but not least did you install the correct BIOS for your L300? Because on the Toshiba driver download page you can choose between different L300 models.
Greets

Early 2008 Mac Pro shut downs during start up and restarts to full power fans, Help!

I have searched through all the forums all day and can't find anyone with the exact same problem.
It doesn't matter if I'm booting up to Windows 7 (boot camp) or OS X.The computer will start booting... and anywhere between the "apple tone" and the login screen it will shut off all the displays, shut down the HDDs, shut down the GPU fan and spool up the main fans to 100%.
I have reset the SMC and PRAM. All the diagnostic LEDs are displaying correctly (no overheating, GPU lights on). No RAM LEDs are lit up. The white LED on the front remains lit constantly. It won't stay running long enough for me to run the diagnostic disk.
I first thought it was a GPU (Nvidia 8800) issue, but after removing it and booting up with no video card... the outcome was the same. I'm leaning towards a PSU failure, but I haven't found anything to back up my theory. I'm hoping it's not a logic board failure... I would think there would be LEDs lighting up or something more definitive.
Can anyone help?!?!

There are multiple threads and reports of issues with Icy Dock - there is one on Amazon that lines up properly.
The drive sled length of 2009-2012 Mac Pro are longer. Maybe OWC needs to be clearer.
You'e right half-way and maybe some corrupt plist or interferring process you have, or even another hardware item or cable - external - even printer drivers or something that refuses or does not like sleep. Controller card?
All around I'd have to vote for Samsung 830 model. Then Intel 520. Crucial is out with x4 now (Or is it "V"?)
SSD firmware continues to be trouble. Even May-June the SandForce firmware had major issue and reason to hold off any using theirs. Reason to see if yours needed to be updated. Someone last week with m4 found they had old firmware and needed to update it.

Just done a fresh install of Snow Leopard with all updates,iMac 5.1 behaves strange, sometimes I start Google Chrome and look at youtube videos the computer freezes and shuts down immediately, I believe its related to overheating ?

Just done a replacement of the pata DVD drive (its new and is working ok), and a fresh clean install of Snow Leopard with all updates, iMac 5.1 behaves strange, sometimes I start Google Chrome and look at youtube videos the computer freezes and shuts down immediately,
I believe its related to overheating ?
iStat Pro shows GPU diode temp at 66 C, CPU at 48 C, Fan rpms is around 1000
Any ideas somebody ?
The hard disk has been previously checked with state of the art techniques that have confirmed that the hard disk drive is in perfect condition.

1.5-3 minute boot up as opposed to 15-20 seconds
And
why it takes a long time to load a lot of things.
I have restored this
from a time machine partition.
TimeMachine is only a backup and restore, it won't fix issues in software and according to your information, doesn't even optimize the restore for best performance on boot hard drives.
What you need to do to regain your speed is to understand how your machine works
Why is my computer slow?
Fix any and all issues in software following this list of fixes
..Step by Step to fix your Mac
Then follow this defrag method I've outlined
How to safely defrag a Mac's hard drive
Most commonly used backup methods
There shouldn't be need to reinstall OS X fresh unless your having file structure issues which if they are should appear when in the Steps, which then a zero erase and install will cure as well as any bad sector issues, the defrag step wouldn't be necessarry on a freshly installed system obviously as the files are written all together, not in portions all over the drive.
Hope this assists.

Equium A60-199 randomly shutting down -could it be overheating issue

Hi I am posting on behalf of a friend who has been experiencing her A60 laptop shutting down unexpectedlly.. ( she said it shut down after a few mins or when she tried opening Firefox)
Syst Details
Toshiba Equium A60-199 Model No: PSA67E -00J00C8J
18 GB Free & 19 GB used
512MB RAM
Celeron 2.93GH processor
Running WinXp Home
NIS 2006
I have had a look remotely and was using it for about 30 mins opened FF with No issues using logmeinitreach software ..There was nothing showing in the event manager log, for the time of day it was shutting down earlier on..so I was wondering if it is a faulty power supply?
Everythng looked fine had just clicked on the Norton Internet security Full system scan which has not been run in a long time and the PC shut down NOW it won't reboot at all.??
Apparantly she can hear some whirring but nothing else happens..( which I guess could well be the fan kicking in)
Advised her to leave it for a bit and about 2 hours later she was able to turn it on again.. I am wondering if it could be overheating.??
Apparantly 3/4 months ago this was happening then stopped happening and has now started again..
Please can you give me some advice on how to clean it - other than taking it to a hardware workshop
I have downloaded the A60 users manual and have asked her to confirm what the indicator lights are showing - so as to try to verify of overheating
is the issue..
I have also read online "You can spray compressed air into the air intake vents but not the air output vents to help get rid of the dust and debris." I have looked at the manual and can see 2 lots of vents ..One is on the side and one on the bottom, is th eintake the one on the side ? Do I literally point the air at the side vents and spray ?
When asking her if she knows when teh fan is always on, sometimes on, never one etc she seemd to think ot is ALWAYS on.. which woudl again point to overheating..
Please advise
tamba1

Hello Cathy
I also believe the suddenly shutdowns are result of overheating. If the dust blocks cooling grill the air circulation is blocked and hardware can achieve critical hardware temperature very fast. Sometimes you can start any preinstalled application, the CPU usage goes to higher level and notebook will suddenly shuts down.
The notebook must be cleaned as soon as possible. If you do not have experience with disassembling procedure I recommend you to contact nearest service and the notebook should be cleaned on professional way. It costs a little bit but you can be sure that you can use notebook for a longer period of time.
If you need addresses and phone numbers for contacting ASP (Authorized service provider) please visit http://eu.computers.toshiba-europe.com > Support & Downloads.
Bye and good luck!

IMac Randomly Shuts Down -Overheating Problem?

I've posted in these forums once before about my iMac randomly shutting down. I believed I had solved the problem by following another users instructions which were as follows:
"Machines that are just randomly shutting down are usually caused by defective hardware. The only thing that can be done about that is to call Apple and have it replaced or serviced. There is probably not any one particular solution as it could be any number of the internal components failing and the resulting symptoms could be the same.
If you'd like to do some hardware tests yourself before calling Apple that can be done. First try resetting the SMC: http://docs.info.apple.com/article.html?artnum=303446
Next insert the original gray install disk, restart your iMac, then hold down the "d" key until it boots up into the Apple Hardware Test. Run the extended test.
Also if you have Apple Care install TechTool Deluxe from the cd provided. Then run TechTool on your system."
I also removed and replaced of a defective external HD that I thought my be causing problems. But after all these steps, the machine kept turning itself off.
I had read in some forums that it was due to the internal temperature of the iMac. So I downloaded smcfancontrol 2.1 and increased the fan speed on the internal fans. This did bring down the temperature as revealed by the iStat Pro widget. However, I still had another shutdown.
So I turned off the machine, went to bed, and this morning when I turned it on iStat Pro said these were the internal temperatures of the iMac:
CPU A 77 degrees F
GPU 85
GPU Diode 88
GPU Heatsink 85
Ambient 61
Memory Cont. 74
Airport Card 112
HD Bay 1 76
I find these numbers to be unbelievable. Especially the airport card. When the whole system seemed to be running hot, the Airport Card said it was 122. It always says something above 100 degrees. The other temperatures also seem out of whack. How can the CPU be 77 degrees after 10 hours of being completely powered down in an office environment that is only 55 degrees?
Has anyone else run into a similar problem?
Has anyone else found the problem to be a faulty temperature sensor (and is there a way to reset it, or does it have to be replaced)?
Overheated? in Oregon...
Message was edited by: OregonMac7

Certainly sounds like a case of the left hand not knowing from the right, huh
Well, I have my call in, and I am getting onsite service to replace the logic board, as per Apple's recommendation.
I'm reading the other longer thread (171 replies), and it's disheartening to hear how some of the "geniuses" are handling this problem. They can't replicate it by leaving the mac running overnight, so "the problem doesn't exist". Hello! It's *random*! As in, not easy to replicate!
I'm also a bit disillusioned that the popular Mac sites (TUAW, etc) haven't picked up on this story yet. I emailed TUAW the link to the long thread, and they ignore it. Usually when this gets more "mainstream" press, then Apple finally steps up, acknowledges a problem, and serious fixes are made. Right now, it's a bunch of complainers (me included) in some threads on the Apple site.
I took a huge leap last November, and went from PCs to the Mac platform, after working on my personal migration plans for a month prior - how to move from my photo editing on the PC to the Mac (I wasn't about to buy another full copy of Photoshop, for eg, but I did find out I could upgrade from Win PS to Mac PS), if all the programs I use for photography and design were available on the Mac, learning the ins and outs of shortcut keys, how things are done, etc etc, and was so happy initially when I got the Mac and said goodbye to the PC.
Now I'm literally afraid to do any serious work on the Mac for fear of the "pulled plug" syndrome losing the last 20, 30 minutes of work I've been doing because I didn't save every 2 minutes. And iLife's Pages doesn't autosave (much to my chagrin), so I've lost some long correspondence and articles typed because I didn't save it before the pulled plug o' death.
Not a very nice computing experience.
As a suggestion, maybe everyone reading this and the other thread can flood TUAW.com with a news suggestion to cover this problem. Engadget, Gizmodo too while you're at it. I think once these million-viewers a day blogs cover it, we'll see some real action from Apple.
Just a thought....
Mark

VN7-571G fan shuts down in stress = overheating

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