Fan Ramps to High/Loud in Panther and is fine in Tiger?

Just got my Dual 2ghz, the PCI 4gig max Ram version (currently 2.5 gigs installed), and in Panther 10.3.3 the fan begins ramping up after the OS loads and continues to cycle upwards until it reaches what I can only imagine is it's high setting. I stuck some ribbons on the back of the grill and they are floating in the wind. It's the fan on the bottom of the tower underneath the video card connection. I have a Panther partition and a Tiger partition. Tiger seems fine. Panther is a wind tunnel.
Does anyone, hopefully someone at apple, know how to fix this. I would love to stay in 10.3.3 on the Panther partition cause I'm catering to some moody software. Tiger is up to date. If I have to upgrade I will, but can't we fix this issue without upgrading. Is it the Radeon 9600 (128mb, Dual DVI) video card? I've noticed that none of the ATI updates address that card. The system does have problems coming back from sleep in Panther. That's usually caused by PCI cards but maybe the AGP card isn't happy. I should re-seat the card... I will.. Haven't tested sleep in Tiger yet. Seems to be running fine, and the fact that it's ok in Tiger leads me to believe that there has got to be a software fix for this thing. I know the boys and girls at apple are clever enough to fix this. I mean... come on... they brought us Final Cut and iPods. How hard is it to fix a fan? Please don't tell me I have to lug this thing into a nearby repair shop for re-calibration. Hook a brother up. Eagerly awaiting the miracle cure. Thanks for any input towards the fix.

Hi Paul,
The G5 ran this way under Panther from the start. I need the Panther partition until all my software is Tiger capable. Plus my version of Pro Tools LE doesn't recommend that I go to the most up to date version of Panther. I think they recommend 10.3.6 unless I upgrade the Pro Tools software to the next level, which will cost me. You know how it goes. I was just hoping that the system I had on my G4 could be transfered over to my G5 partition and work as well there as it does on the G4, which it does except for the fan issue. I will try a fresh install of Panther since I cloned the drive originally. I'll let ya know what happens. Thanks.

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Possible solution iMac cooling fan stuck on high and loud

Had iMac go to sleep and just died, no lights or anything, power switch ignored me. Unplugging from wall, holding button in various ways on and after power up did not help in any way. Read articles on knowledge base and googled the web. Finally decided to pull out the round power plug on the rear of the iMac which to a regular user does not even look like it comes loose but it does. I checked the end with a volt meter and saw 120 volts ac and knew the cord was good. Plugged it into the Imac then momentarily touched the power switch and wham the iMac came on with a fury and the fan on super high speed. I'd never heard any of the iMacs in the house ever sound this loud, even on hot summer days. Pulled my hair out for a while but then repeated the steps removing the power cord from the back of the iMac, not the floor, and this time I pressed and held the power switch after plugging the AC back in and held it until I heard a beep, maybe 10+ sec. Of course I knew this worked because I could hear the iMac coming on quietly but making normal noises the moment I touched and held the power button. Now the system is working great again and I,m not looking at bringing it into a service center for no reason and injected more possible problems. I started another topic on the power on issue but I just wanted to document what I found and make it easier for someone else to get a search hit on a solution.
Here's the other thread and hope it helps someone else.
http://discussions.apple.com/messageview.jspa?messageID=9424884&stqc=true

Do a SMC reset and if that doesn't fix it back to the store you go!
SMC RESET
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Press and hold the power button for 5 seconds.
Release the power button.
Attach the computers power cable.
Press the power button to turn on the computer.
PRAM RESET
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

My iMac g5 starts up , responds slow, freezes after approx. 2 minutes, then upper fan starts running high and loud. ANy ideas on what could be wrong? Worth fixing?

My iMac g5 starts up , responds slow, freezes after approx. 2 minutes, then upper fan starts running high and loud. Any ideas on what could be wrong? Worth fixing?

Could be over-heating. Try cleaning out the air vents.

Mac running slow and fan running at high speed

MacPro1,1, osx 10.7.5, 8gb ram
My mac is running slow and fan running at high speed & very loud. On MRI diagnostic it passes everything except this error "CPU Proximity: Can't Read ". I did low level configuration and still having issue with unit.

See Below.
Mac running slow and fan running at high speed

I reset SMC and now fan is running high all the time

I reset the SMC after finding info on here about the built-in iSight not working. Once it came back up the iSight is working, but the fan is on high all the time. I'm not sure what to do with this. History prior to resetting SMC: I hadn't used the camera since the hard-drive was replaced in October. However, my kids have used it to video chat via stickam with no problems yet iChat and Photo Booth wouldn't recognize the internal camera (System Profiler could see the camera). So I tried the fix I found on here - resetting the SMC. It fixed iSight but now the fan is on high all the time. Any thoughts on what I should do next?
If you need more info on the iMac - I can supply that later as I am away from that computer at the moment. Here is what I do know - 20" white iMac

Hi, an SMC reset is one of the things usually recommended as a possible fix for loud fans, not the cause. There are a few troubleshooting steps to take, but you'd be better off posting in the Intel iMac Forum. You are in the iMac G5 Forum. You have a newer computer. They'll try to help you over there.
EDIT I'm basing this on your SMC reset, which would indicate an Intel Mac. Sure it wasn't a PMU reset?
http://discussions.apple.com/forum.jspa?forumID=1110
Message was edited by: WZZZ

Mac Pro freezes while asleep and fans go to high

I'm not sure if this is a problem specific to my Mac Pro Dual Quad Core MacPro3,1, but it has carried across an update to 10.6.5 and through a reinstall of Snow Leopard. Also, I don't have it on my MacBook Pro. So, I'm posting it in the Mac Pro forum.
Periodically (but now more frequently), when I go to my Mac Pro in the morning, after it has let itself go to sleep, the fans are on high and the machine won't wake up. I can't mount the machine's hard disk remotely from my MacBook Pro on the home network (which I usually can) and I have to hold the power switch down to force a restart. I've checked the Console logs (all messages) and the last message is usually sometime in the morning, sometimes as late as 5 or 6 am. But, there is no common thread to the last messages before the machine freezes, so I can't use that to identify what process was running when the machine froze.
This past weekend, I got up at 5:45 am and heard the fans running high and then went to watch the Formula 1 race on TV. The machine was frozen again when I got back to it at 8 am. So, the problem will happen whenever it wants, but only in the night (before 8 am and after midnight).
I've tried the following, with no success:
• Reinstalled OS X 10.6 and followed the update path
• Reset the SMC and PRAM
• Rebooted the machine before going to bed, so that no user login process or software was running at the time of the freeze.
What is a good process to use for debugging this problem, from this point, since the Console Logs don't give me any consistent information? Is there a way to make the Console logs more verbose?
How can I get a list of all the maintenance processes that autostart on my machine at night? I'm assuming the problem is with a process installed by third party software, since I didn't clear the problem when I reinstalled a fresh copy of OS X.
Thanks, in advance, for your help.

I can't believe I missed this thread. I was sure I was the only one. This has been happening to me for months now, and of course out of warranty. I've tried so many things. Mac Pro Dual Core Intel. Fans go bananas for no discernible reason (according to Activity Monitor). I often return to an un-wakeable display despite the fans going full blast. Sometimes while I'm working, the thing just puts itself to sleep and doesn't want to wake up. Several times a week, the system hangs. (There's usually nothing complicated being done, although using iPhoto is pretty much guaranteed to freeze everything.) Almost always takes more than one hard restart in a row to get it back up, sometimes a DOZEN or more. Have no idea whether attempting a safe boot helps reduce the number of tries but it seems to. It's set never to sleep; I've reset the SMC and PRAM and deleted video preferences (see http://support.apple.com/kb/HT1573). The issue pre-dated installing Snow Leopard and was unchanged by it.
By the way, the computer is at its most silent now - 600rpm each on power supply and exhaust fans, and 500 each on CPU and expansion according to iStat - and it's still pretty loud. Anyone else have that issue?

Temp and Fans running at high rpm

My CPU A is running at 93˚F and both fans are running over 6000 rpm. I've checked permissions and verified, did a system shut down, removed battery, disconnected power and help power button for 5 secs for restart and still fans noise is extremely loud. I've checked activity monitor and everything seems fine. Anyone have any other ideas to make this machine run cooler and with less noise? I recently added Adobe software updates.

Some versions of iStat Pro were implicated in "wake from sleep" issues especially when "Network" was turned "On" in the settings, PB1701.
It is generally a reliable piece of software though. Personally I prefer Marcel Bresink's "Hardware Monitor" - http://www.bresink.com/osx/HardwareMonitor.html , which provides additional information and runs as an app, rather than a widget. It also allows you to generate ongoing "history" graphs, which can be useful in tracking down "high stress" activities and the like. (A Hardware Monitor "widget" is also available for those who like such things)
Cheers
Rod

Will not boot up and fans run at high speed

will not boot up and fans run at high speed

after much head scratching I ran the hardware test disk from cd. The test showed a memory issue I eliminated the faulty one systematically. So it wasn't a hard drive or software problem in the end it was faulty memory. What was misleading was the computer telling me there was a fault on the hard drive. The machine works fine now. Thanks to people's comments I learned a bit more about the G5 that helped eliminate probable causes

Early 2008 MacBookPro keyboard backlight off and fans run at high speed

Hi!
I wrote from Turkey.
My Early 2008 MacBookPro 2.40 ghz 4 gb Ram OSX Mavericks machine's keyboard backlight off and fans run at high speed; it seems an exact smc resetting problem.
So i tried the 2 ways of SMC restting procedure; both battery you can move and not, but nothings changed on the situation..
On the way for removable battery; nothing changed but on the way for umremovable battery way; keyboard backlight flashes and gone, but fans are at high speed not changed. So nothing changed.
What can i do right now? i'll wait for your advices
Thanks

Your Mac may need a new PRAM battery. Once it is over 4 years old, that often is needed.

When I shutdown the fan turns on very loud and fast.. Quiet during running

Had my imac about 2 months now its the late 2012 27" iMac
When running its fine... Hardly makes a noise, however today i shut it down and about 5 seconds after it shuts down the fans kick in really loud this never happened before
If I put the computer in sleep mode it does not start fans only when it's shut down... Only way to stop it is to turn it off at the wall
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anyone?
someone please help!! lol

Kernel task is hogging up my computer and fan is running high. What should I do?

I have a mac air 1.6 ghz intel icore 5 with 2 gb memory. Ive been noticing my fan running high and consistantly when my external harddrive is plugged in and just surfing and posting images on facebook. Very basic stuff.
Ive noticed in my activity monitor that kernel task is hogging up a lot of space on my computer. How do I get rid of it? and wth is it?
The fans are running high as I said. I continually reset the SMC and it keeping coming back on high.
Should I be worried about the longevity of my mac air?
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From this article: http://support.apple.com/kb/TS3694
Error 1004, 1013, 1638, 3194: These errors may be the result of the connection to gs.apple.com being redirected or blocked. Follow these steps to resolve these errors:
Install the latest version of iTunes.
Check security software. Ensure that communication to gs.apple.com is allowed. Follow this article for assistance with security software. iTunes for Windows: Troubleshooting security software issues.
Check the hosts file. The restore will fail if there is an active entry to redirect gs.apple.com. FollowiTunes: Advanced iTunes Store troubleshooting to edit the hosts file or revert to a default hosts file. See section "Blocked by configuration: (Mac OS X/Windows) > Rebuild network information".
Try to restore from another known-good computer and network.
If the errors persist on another computer, the device may need service.

No display and fans ramp up while trying to wake from sleep.

For the past week every time I go to wake my computer from sleep, nothing happens at first, and then my computer fans ramp up and I have to hold the power button to stop it. I have already tried resetting my SMU, but that didn't seem to do anything. I also tried reseting my pram. I'm guessing it's probably that my logic board is going, but I was wondering if anyone has heard of this before and had any fixes. Thanks.

Which "model" & generation G5 iMac do you have?
Need this info so that the knowledgeable users can provide you with the proper troubleshooting solution(s).
http://docs.info.apple.com/article.html?artnum=301724-en How to identify your iMac
http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh355.html Getting information about your computer
In the meantime, check to see if your model qualifies for the G5 iMac Repair Programs
**WARNING: DUE TO SECURITY REASONS, PLEASE DO NOT POST YOUR COMPUTER'S SERIAL NUMBER ON THESE MESSAGE BOARDS.**

I turned on my 2011 IMac and the fan is running very loud. What is the problem?

Please help me figure out why my fan is running so loud after turning it on tonight. I have shut it down and turned it on again and rebooted it and it is very loud.
Thank you.

timfrombrisbane and ScuseMe are right.
Apple engineers say, that to reset SMC, you follow the procedure outlined in KBase Article HT1379.
How much you've posted to the forums is irrelevant rkaufmann87. You're not one of the engineers who created the product. The engineers who created the product, say to follow the steps outlined in that article HT1379.
The procedure you listed is incorrect and will not work to reset SMC on an iMac. Read the article. It's there in black and white, with very clear steps. As the article states, you have to unplug the power cable from the back of the machine, wait 15 seconds, plug it back in, then wait 5 seconds before turning it on. The article says nothing about holding the power button for 5 seconds.
People come in here, for computer science advice. I cited my source, for this scientific procedure. My source, is an article from the computer scientists who created the iMac product. I'm also an Apple certified repair technician - so I listen to what the Apple engineers say.
Can you cite your *official* source for your incorrect procedure? Didn't think so.

HT3964 My 2012 MacBook pro has a fan running on high from the moment I turn it on and my battery has an 'x' on it.someone please help.

My 2012 MacBook pro has a fan running on high from the moment I turn it on and my battery has an 'x' on it.someone please help.

You should contact AppleCare as soon as possible.
MBP is in warranty for 1 year from the date of purchase.
AppleCare: 1-800-275-2273.
Standard troubleshooting step for these kinds of issues is to reset SMC.
Reset SMC. http://support.apple.com/kb/HT3964

Kernal_Task consumes 300% of CPU + Fan runs at high speed

Hi all,
I am currently using MacBook Pro 13-inch, Mid 2012.
Since last few weeks this mac has been so slow and the fan began runing at very high speed wich makes noise so loudly.
I then went to a so called "Genius Bar" at the apple retailing store. They did "the neccessary test", they told me so. "There is no any significant problem with your mac, both softwear and hardwear", they replied to my question why my mac became so slow and noisy.
After the dianostic test, they reseted PVRAM, PRAM and SCM... They told me the problems were resolved.
I brought my mac back home.
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They seemed curious with my mac's problems. They suggested me to change MLB, 2.5Ghz, Fan, Front Hard Drive Bracket W/IR/Sleep/HD Cable.
..... Two days after the same story re-appared. I went to the store again. This time they suggested me to change the Topcase, W/Keyboard, No Trackpad,13" MBP-CAN. I paid for that.
It's very anoying. They changed almost everything. I wasted a lot of money and times. The last day I went to the "Genius Bar", the manager told me that they can detect or identify the problem. "What we can do for you is to refund you!", he told me. I really don't like this phrase much as what I wanted was that my Mac should be repaired.
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Anyone can help?
Thanks

Sokly H.,
what did the manager’s offer of a refund cover — the money that you’ve paid for this series of repairs, or the purchase price of your MacBook Pro, or both?

Fan Ramps to High/Loud in Panther and is fine in Tiger?

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