Fan issues -- computer overheating?

I have a quick question. I have an iMac G5, (non iSight version). My computer has an overheating problem -- the fans will run at high speed 99% of the time and when running a large application (such as a large game like World of Warcraft, and occasionally when even doing something like watching a baseball game online) the computer puts itself to sleep to, I believe, avoid overheating. I've done some research and I think this is not an uncommon problem. I was wondering if this is something I can fix on my own by ordering parts from the DIY section, or if I have to bring it to an apple store? If I can do it, what parts would I need? Just the fan? Thanks for any help you can give me!

Hi--
the computer puts itself to sleep to, I
believe, avoid overheating.
You can verify this by using the Console application from your Utilities folder. Open it up and look at the log and see if you see messages like this:
<pre class="command">May 28 10:49:08 localhost kernel: Thermal Manager: max temperature exceeded for 30 seconds, forcing system sleep
May 28 10:49:08 localhost kernel: SMUNeo2PlatformPlugin core dump:
May 28 10:49:09 localhost kernel: IOHWControls:
May 28 10:49:09 localhost kernel: [0] "System" Type:"fan-rpm" Id:0 TGT:1343 CUR:1343
May 28 10:49:09 localhost kernel: [1] "Hard Drive" Type:"fan-rpm" Id:2 TGT:1929 CUR:1919
May 28 10:49:09 localhost kernel: [2] "CPU" Type:"fan-rpm" Id:1 TGT:4400 CUR:4401
May 28 10:49:09 localhost kernel: [3] "sysclk slew" Type:"slew" Id:256 TGT:1 CUR:1
May 28 10:49:09 localhost kernel: IOHWSensors:
May 28 10:49:09 localhost kernel: [0] "CPU Power" Type:"power" Id:5 CUR:12.2119 W
May 28 10:49:09 localhost kernel: [1] "CPU T-Diode" Type:"temp" Id:0 CUR:85.38558 C
May 28 10:49:09 localhost kernel: [2] "CPU Current" Type:"current" Id:1 CUR:1.15552 A
May 28 10:49:09 localhost kernel: [3] "CPU Voltage" Type:"voltage" Id:2 CUR:11.64384 V
May 28 10:49:09 localhost kernel: [4] "Hard drive" Type:"temperature" Id:4 CUR:54.0 C
May 28 10:49:09 localhost kernel: IOHWCtrlLoops:
May 28 10:49:09 localhost kernel: [0] "Clock Slew" Id:0 MetaState:1 "Force Reduced Speed"
May 28 10:49:09 localhost kernel: [1] "PowerMac8,1 B System Fans" Id:1 MetaState:0 "Normal"
May 28 10:49:09 localhost kernel: [2] "CPU Fan" Id:2 MetaState:0</pre>If you do, then it's definitely overheating causing the sleeping.
The Apple Store's solution was a new logic board. Mine's a Rev. A, though, and covered by the repair extension program, as well as AppleCare, so I had no problem with them. The CPU fan for some reason was unable to cool the CPU, despite the fact that it rand at nearly 100% speed constantly.
Some people have reported that they have found the vents along the bottom of the computer have gotten clogged with pet hair or dust and that cleaning them out helped slow the fans and cool the computer. So you could look into that. Also, you might take a look at where the computer is sitting and see if something has changed that is forcing the warm air vented at the top back into the case at the bottom.
If none of those work, though, you might need to have it looked at. Whether or not the fans can be replace indivually on your iMac, though, I'm not sure. You'd need to talk to Apple to find out...
charlie

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7970 Lightning BE Fan Issue (card overheating!!!)

I have Been having issues with a MSI HD7970 Lightning BE card. at the moment the on-line retailer refuses to acknowledge the issue.
i would post pictures of the screen grabs but cannot workout how!. but you get whats going on from below information.
I have already returned the card once at my own expense , and they said they couldn't find a problem with it, apparently the overnight stress tested it with fur-mark!
i have since had it returned to me and my expense , because they didn't find it "overheated" and i have tested it again on the 2 below systems, with the results below.
of course i have returned it to them and insisted on a replacement. i will update when more news is available.
has anyone else had issues with this card?
Windows 7 x64 sp1 with all critical updates, Intel i7 920 2.8ghz, ASUS P6X58D-E motherboard with Intel x58 chipset. AMD Catalyst 12.11, MSI AFTERBURNER v2.3.0 , MSI Kombustor v2.4.2.
As you can see the gpu is 98c and it has only been running 2min 58sec. from the graphs you can see the framerate (top graph) becomes unstable because gpu clock rate (8Th graph) is erratic due to the card throttling back due to overheating.
You can also see that the FAN is being asked to run at 100% (6Th graph) but the fan is clearly not responding (7Th graph) as it is giving a fixed feedback speed of around 1000rpm, causing the card to overheat. THE FAN SPEED IS NOT INCREASING OR DECREASING IT IS STAYING AROUND 1000rpm.
After Talking to the Tech Support guy who assured me that there is no problem with the card, and it is probably a compatibility problem with the Motherboard, I doubted this (I mean this is why standards are developed/agreed right?) But just to save a little time/effort I tried it in a newer Generation Motherboard, the result is below.
Clean install Windows 7 x64 sp1, Intel i3 3225 3.3ghz, GIGABYTE Z77-DS3H motherboard with INTEL z77 chipset. AMD Catalyst 12.11, MSI AFTERBURNER v2.3.0 , MSI Kombustor v2.4.2.
Unfortunately I hadn't realized it didn't grab the frame rate graph before I dismantled the machine. But you can still see the gpu is 99c and it has only been running 5min 06sec and was overheating well before that.
From the graphs you can see the gpu clock rate (7Th graph) again is erratic due to the card throttling back due to overheating.
You can also see that the FAN is being asked to run at 100% (5Th graph) but again the fan is clearly not responding (6Th graph) as it is giving a fixed feedback speed of around 1000rpm, causing the card to overheat. THE FAN SPEED IS NOT INCREASING OR DECREASING IT IS STAYING AROUND 1000rpm.

https://forum-en.msi.com/faq/article/how-to-post-images-in-the-forum
For image hosting service I prefer Photobucket.

Fan Issue? Can't tell if it is working?

I have a fan issue. While playing WoW I realized I started to get issues with my game and I would get a brief 1 to 2 second long lag every 5 seconds. Then I realized my computer was relatively hot, but I couldn't be sure as I've had this issue with WoW before and overheating was the problem as my fan turned out to be broken, so I may have just been being paranoid. However, I cannot tell if my fan is even running at the moment to know if it is working. Any help?

2000 RPM is the default speed for unibody MBP fans, which run all the time. When the fan(s) is/are working properly at that speed it's inaudible, except in a dead-silent room with one's head close to the machine. Even then, a slightly noisier than average hard drive will drown out the extremely soft whir of the fan(s).
13" MBPs have one fan; 15" and 17" machines have two, which normally operate at the same speeds.
Your fan or fans should speed up by the time the CPU temperature reaches about 180-185°F, if not a little before then. If the CPU temp reaches 190°F and stays there instead of cooling back down to below 180°F, you should suspect a cooling system problem. Before the CPU temp reaches 221°F, which should never happen, the machine will shut down or sleep for its own protection.
Expect fan speeds to hold at about 2000RPM at least until the CPU temp reaches 170°F. That's perfectly normal and no cause for concern.

Is your computer overheating?

My computer went down the other day, simply a black screen, no warning, no messages, just black. After a lot of messing around and diagnostics it turns out my computer was overheating.
An overheating or border line overheating machine can result in lock ups, slow downs, and unexpected reboots. To find out if your CPU is too hot you'll need the "hardware monitor" that comes with your motherboard. There are also plenty of third party programs which you can run.
The next question is "how hot is too hot?". Intel CPUs display one of two numbers... an absolute temperature ~or~ a thermal margin. The first is self explanatory but the second can seem confusing. The Margin indicates how many degrees remain before the CPU is critically hot. So the bigger the margin the safer you are.
Remember that modern computers conserve energy when idling, so run you most intensive application for 30-60 minutes and keep and eye on your temperatures. Conventional wisdom indicates you want your mobo and CPU less than 60°C (140F). Any higher and damage to one or the other may result. Intel has specific details on each CPU including its thermal maximum on this page, click here. Most modern CPUs give you a thermal margin which removes the guess work.
Tip... if your hard drives are too hot to keep your hand on for any period of time then you have excessive heat build up. Ensure hard drives have one drive bay gap between it and anything above it. Or use a case with hard drive cooling fans (see below).
If your board and/or CPU are running too hot you should consider a well ventilated case. I am now using the Antec 900 (click here) which has four over sized fans plus the fan in your PSU making five total. The 120mm BIG BOY (their words not mine) is placed directly above the CPU keeping it super cool.
Hopefully these tips will help those users experiencing weird hang ups and crashes.
Tip... if your temperature is good but file access is slow and you get lots of blue screens then there may be a chance your hard drive is about to fail. Make sure to run a check disc or similar application. And always make frequent backups!
Original Post on my Blog: http://gmckinney.blogspot.com/2008/09/is-your-computer-overheating.html

>Gordon McKinney:To find out if your CPU is too hot you'll need the "hardware monitor" that comes with your motherboard.
I use the Intel supplied monitor (in the Intel Desktop Utilities) on my DG965WH motherboard with a Q6600 CPU and 8GB RAM, but I've found a problem when using it in Vista Ultimate 64.
Apparently the monitoring functions interrupt the mouse hardware (maybe all hardware for all I know) and cause random and temporary mouse pointer freezes that can last for a random amount of time--averaging around a second. The mouse pointer will catch up, but the interruptions really create havoc when using any mouse oriented program--particular LR2.1 and local corrections.
My solution is to run the Intel Desktop Utilities when I wish to check the temperatures--only a couple of times a day as I've never found them to be within 20 degrees (C) of a danger point--and then immediately kill iptray.exe.
Intel doesn't say IDU works in 64 bit OS versions, but I get the same readings with it in Vista 64 as I do in XP SP2. However, it doesn't have the mouse freeze problem in XP so I could leave it in a monitoring state.

Internal fan issues

I have noticed that the fan in my macbook makes really loud noise when I turn the computer on, even when its really cool to touch. Also the fan is triggred on when I put it on any surface, when I am typing it turns off and as soon as I stop typing it turns back on. My apple care protection plan has expired, can someone please point out the problem and suggest what I should do to fix it.
Thank you.

I was able to resolve the fan issue. Just had to open the macbook and clean out the accumulated dust. Tedious work but worth it, works as good as new.
Followed these links:
http://www.youtube.com/watch?v=fQY3YuCHLqo
then to remove and clean the fan:
http://www.youtube.com/watch?v=7bDRM1G3fSI

Yet more fan issues

I see that fan issues are a frequent topic, but I haven't read anything quite like this so I thought I'd post just in case someone has any advice:
About a month ago, my iMac (ALS, 1.8 GHz, 1.5 GB RAM, 10.4.4) starting turning its fan on full blast while it was asleep. They run for about 30 seconds to a minute and then turn off on their own. When I subsequently wake it up, the wake up procedure is delayed, but it appears to be okay... for a while. However, when I try to log out our shut down it will get hung up eventually requiring a hard reset.
Notably, although most programs will work fine during the time between wake up and shut down-related crash, Toast Titanium (ver. 6) will not completely launch -- the icon will appear on the dock, but I can't access the application, and I cannot force quit it.
This problem persisted for a few days, and then went away! Even Toast begain to work properly again. It was not clear to me what fixed it: quite a few restarts, permission repair, disk repair, etc, but nothing seemed to be a "magic bullet".
Unfortunately, the problem just started again. That is, the fans started coming on during sleep and the computer will eventually crash. Furthermore, Toast Titanium stopped working at the same time.
Any ideas regarding how the fan issues and Toast are connected?
Thanks in advance!

Check that you don't have a power supply issue:
http://www.apple.com/support/imac/repairextensionprogram/
And even if your serial number does not appear in the link above, run the extended hardware test with the restore disk that came with your machine. The instructions for doing so are similar that of the Powerbook restore disk here:
http://docs.info.apple.com/article.html?artnum=86287
If there is a power supply issue, or a fan issue that is a hardware related problem, it might appear in that test. The lack of a positive may mean something else is wrong, but at least it is a place to test. Is it happening when no third party devices or networking is hooked up?

For anyone with newer imac fan issues.

I posted about a week ago asking for advice on my fan issue.
I was getting istat readings of 2500 - 3000 - 3500 (max has been 3850) rpms from nothing more than being on the internet. The computer is 2 months old and prior to having the computer worked on for an unrelated issue I had never once heard the fans kick on.
But now my computer sounds like an airplane trying to take off - all the time.
So, with another visit to the apple store, support-line calls and a visit to an outside apple authorized service provider - I am here to tell anyone in the same boat, that having your fans blow LOUDLY, and ALL the time is perfectly "within spec."
I'm using it right now. Only safari is open and it sounds like monsoon season with a nice consistent rpm of 2700.
I am certainly frustrated but did want to share this follow up with anyone that's discouraged with their fans since I know when I first ran into the issue I scoured the forums for info.
Are they loud - you betcha!
Are they annoying - **** right!
Do they interfere with music and video - oh boy do they!
Does it sound like they computer is deathly ill - absolutely!
Is it all 'within spec' - yes, sadly it is.
I don't see anything else I can do at this point.

@den.thed
I actually have that app. already. Its where Ive been getting all my crazy fan readings from.
The temp sensors I havent paid attention to though - which are the temp. sensors and what is abnormal?
Last time I took the computer into the mac genius(the 3rd time) - they just told me everything was fine and didnt even look at it! Then I was told by Apple Support to go to an outside service provider who also said there wasnt a problem. I had 50 screenshots of the fan at 3000+ speeds and they didnt seem concerned.
Overall I guess what im getting at is - even if it appears that there's a problem I dont even know what I can say to these people anymore!!! No matter what I say, Im told that the computer is fine. Its by far the most frustrating product/purchase problem Ive ever dealt with.
thanks for help so far though.
Anyone know how much I can recoup by parting the thing out?

MSI GE60 0ND infamous fan issue

Hello,
I have a GE60 0ND and I'm encountering the fan issue where the fan keeps starting and stopping even when the computer is idle. It is becoming infuriating and I want to make this stop.
Reading about the issue I gathered that I had to update the firmware. So I did, using a bootable key set up with rufus.akeo.ie tool, and then after booting on it calling ecall.bat. I did the procedure not to mess up EC (removing battery and charger, waiting 10mn before booting). I then checked the FW version from the BIOS system info and it reads
Bios Version: E16GAIMS.10E
EC Version: 16GAEMS1 Ver4.05
So yay, I guess? But the fan keeps spinning up and down as it did before. Should I update the BIOS to 10F as well? How should I proceed not to mess my notebook up?

Quote from: Elred on 06-October-14, 17:04:14
Okay so I suppose there is some kind of transition here... My computer doesn't do his fan weirdness while idle anymore a few minutes after startup (it kind of does some weird clipping (?) sound at time but I'll probably just have to clean the fan). Sorry for the inconvenience, the info on this forum in invaluable.
Yes, that's my point to wait it for 15 minutes
Because from my personal experience it makes the same thing several times in the past
and it fixed by his own few minutes later and then was fine
so i suspect its some kind of checking/or cleaning FAN mechanism like you said sometimes after startup
but what triggers this behavior is not known
from my experience its rare but can hapend sometimes
Quote
but I'll probably just have to clean the fan). Sorry for the inconvenience, the info on this forum in invaluable.
its not because of dust, it does this at new machine and year later i've checked the FAN multiple times and it's in perfect conditions
but haven't notice this issues from 7-8 months
but of course open the NB to check your FAN to check it!
this is always helpfull

[Solved] GE60 OND GPU fan issue

Please, for the love of anything holy, someone help me get this fixed, it's making me lose my mind.
Like dozens upon dozens of other people, I have the fan issue where it stops and speeds up every 10 seconds or so. The only time it doesn't do this is if I hit the fan button for 100% fan or if I start up a game that requires the fan to be used. If that's not happening, it's silence followed by a speed-up followed by silence, repeat. It's making me go insane.
I flashed my bios to the latest version.
I can NOT flash the EC firmware and the instructions on MSI support tell me to do something that doesn't exist. The zip I download has 3 files, none of which do anything. The win flash file doesn't exist. I contacted MSI support and just get automated crap responses.
I tried downloading MSI afterburner but naturally, the bios doesn't allow for fan adjustment. Thanks MSI!
If anyone has any idea on how to make this stop, please, please, please help me out. I've seen the youtube video with 16,000 views of the guy having the same problem so I'm not alone. I just use Windows 8 so the fixes don't seem to apply. Thanks ahead of time. I'm currently in Afghanistan so I'm probably 12 hours ahead of most people here but I'll keep checking this thread looking for answers. I appreciate it.

Followed the instructions with the DOS flash for EC firmware. The computer has now been running for 10 minutes without WRRRRRRRR........WRRRRRRRRRR.........WR RRRRRRRRRR.
It's amazing so far, I hope it lasts. It's peace on my ears and sanity and, hopefully, I won't have to shut down the computer every time I leave the room in fear the fan will rattle out of control again and break something. On another note, have you guys talked to MSI about putting those instructions right on their EC firmware support page instead of the WRONG instructions they have listed right now?
Also, the fan controls that Syre had still won't download. (hopefully not needed anymore) Maybe it's an issue with the internet here but it always cuts off about 2/3 of the way into it.
Thanks for the help everyone. I'll be back bitching/moaning if the problem starts up again but hopefully that won't happen.

2008 iMac running beautifully untill recently. Screen glitches and freezing. Apple Hardware test showed error code 4MOT/2/40000004:ADD and I have not seen others with this code. Guessing it is a fan issue based on the ODD and HDD error codes

computer felt hot and while running apple hardware test the screen glitches covered the screen and it froze. Now computer wont boot up. Again AHT code is 4MOT/2/40000004:ADD and I have just seen ODD and HDD codes discussed on other threads.Those were hardrive or superdrive fans, so I am guessing this is a fan issue and then it fried by graphics card. Any help as to whether this is game over or worth repairing would be very appreciated.

You need to take it to your local Apple Store or AASP for a professional evaluation. Apple does not publish the codes from AHT, you can Google the code you got and see if you can determine what it means however the best method is to let a pro handle it.

MSI GT70 2PC-1044US - HDMI / GPU / FAN issues

MSI GT70 2PC-1044US - HDMI / GPU / FAN issues
I am having trouble with my HDMI port on a brand new MSI GT70 2PC-1044US . Whenever I plug my HDMI cable from my notebook to the TV, after a few minutes (5 - 20 minutes), my fan will start reving at around 5k RPMs and sounds like a jet engine. When this happens, according to MSI Dragon Gaming Center tool/monitor, the GPU temp reading hits 255 degrees Celsius, which is clearly a glitch. I used another monitor, msi afterburner, and when this HDMI problem happens, this tool reads a normal 40 degrees Celsius.
Here are the things I have tried so far but the problem keeps reoccurring:
1. Called MSI tech support, sent me the link to the newest BIOS and updated it
2. Called MSI tech support again, claimed the HDMI is controlled by the intel graphic controller, and they recommended that i update intel drivers (every software tool on my notebook says it's the NVIDIA GPU that controls the HDMI port /shrug???), so i did this as well.
3. Called MSI teck support again, they suggested I send the notebook back to MSI so they could take a look at the hardware. I did not do this because I did not trust the tech guy and did not want to wait a few weeks to get my notebook back
4. Luckily, the store I bought my notebook at was nice enough to replace my notebook for a new one. I got home, tested it, and the same thing happened. So I think we eliminated faulty hardware.
So now what? What else can I try?
i7 4800MQ 8GB 1TB 17.3in FHD GeForce GTX870M 3GB DVDRW Win 8.1 Notebook

Quote from: Svet on 11-April-14, 18:12:20
have you done EC reset? https://forum-en.msi.com/faq/article/how-to-reset-the-ec-embedded-controller
can you try to plug the HDMI into your dell screen[insteal of sharp TV] to check if the same issue will hapends?
Install latest Intel GPU drivers from: http://www.intel.com/p/en_US/support/detect/graphics
then retest
-Yes, I did the full EC reset. Once the EC flash was done, I removed the power cord from the back and the battery and let it sit for a few minutes before restarting.
- My Dell monitor is old, and does not have an HDMI port, but I will try a different cable on a different TV.
-I already have the most recent intel graphic controller drivers, this one of the things the MSI tech support guys asked me to do by phone

Has the T430 fan issue been fixed?

Hello all,
I am thinking of selling my Macbook Pro and getting a T430, but I am a little concerned with the fan issue being reported here in the forums. Has the problem been fixed in the newer models? Thanks in advance for your reply.

I'm in the same situation, a year ago I purchased a T420 and I was very pleased as the notebook was very quietly most of the time. My notebook was stolen a week ago () and I'm looking for a replacement. As I understand not everybody is suffering this problem of whining fan, have any idea if this problem could be associated to only some particular models??. For example, this problem affects both the models with integrated & dedicated graphics (as far as I understand the dedicated GPU can generate lots of extra heat inside the machine that needs to be dissipated)??
Best Regards
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G5 Unusual Fan Issue - Need Help

While I have read much about the G5 fan issues, I haven't found anything that matches mine.
This is a 1.8Ghz DP running OS 10.4.9 and it is really noisy due to the 2 drive bay fans running at top speed.
All other fans run properly and respond to the air deflector removal (also checked using iStat Pro)
Apple hardware diagnostics check out fine with everything passing and ambient temperature of the drive area is fine (90 or so degrees)as well.
I understand that the drive temperature sensor controls the speed, but typically the issue has been the other way around. Would unplugging the sensor for testing hurt the logic board? Could the fan be bad? How about the FCU? the other fans seem to work as advertised.
From the sounds of it, the Thermal calibration wouldn't be needed.
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Thanks

Strangely enough, the answer to the problem was that the rpm controls in both the fan and the blower of the media bay were damaged. Power spike?
While they are difficult to come by (they can't be purchased separately as they are part of the enclosure assembly) they are certainly cheaper than a logic board.
Btw, if anyone else has a similar issue, the media blower is the only truly unique part. The media fan is the same as the fan in the speaker/fan assembly which can be easily found.

MBPr Fan issue

Hello,
I bought a macBook Pro Retina and have been experiencing some issues with the fan.I saw a lots of thread talking about fan issues but not sure if a solution has been found.
Problem : I can be just browsing the web or checking emails or playing music through iTunes, and the fans will spin up to full speed for a minute or so, and then return to normal. (low CPU usage et low temperature < 40°c)
Configuration : MBPr mid 2012 - i7 2.3ghz / 8GO Ram / 256GO SSD Samsung.
I have run all updates available for my machine.I ve tried the smc & pram reset.
Is there any solution ? Should I go to an apple store ?
Thanks

amoysan wrote:
Should I go to an apple store ?
Can only help.
You can also run an Apple Hardware test to see if ant problems are discovered. Do not assume that a no-error result is definitive.
http://support.apple.com/kb/ht1509
Ciao.
A SMC reset might help:
http://support.apple.com/kb/ht3964
Message was edited by: OGELTHORPE

Do iphone 5 s have any issues with overheating or signal drop out

do iphone 5 s have any issues with overheating or signal drop out

I had this issue with my iphone.. the phone got so hot it actually burned my leg. Took it back to apple and they switched it with a new phone! Had no issues since

Fan issues -- computer overheating?

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