The fan on my iMac runs on and off

It has been a while now and i didn't really think much of it but the fan on my imac keeps running really loudly on and off. i don't really know much of the terms people were using while reading other discussions but i want this noise to stop!! please help me!

When you close the applications does the fan slow after a few minutes or keep on sounding loud? If it quietens down then one of your aplications is is working hard and the fan is keeping things cool, if the noise does not stop then you could have a hardware fault.
Try resetting the Pram and SMC, link is to the SMC reset and the page has information on a link to teh PRAM info.
http://support.apple.com/kb/ht3964
After that I think you will need some local advice, perhaps an Apple store.

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The fan on my imac runs fast and doesn't stop.

The fan on my imac runs fast and doesn't stop. I have to shut down the computer to get it to stop.
Why is it doing that and how do i stop it?

Reset the SMC using the directions below:
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.

Why is the fan in my iMac running so much after Mountain Lion update?

For some reason, I seem to notice the fan on my 4 year old iMac running constantly, even with very few processes running (only Mail and Safari) after the upgrade to Mountain Lion. Anyone else have this problem? Anyone have a solution?

Sorry, guys (or girls), but NONE of this worked. I shut down, pulled the plug, restarted, Zapped the VRAM, restarted, several times...I mean, at least 4. There were NO major processes going on according the Activity Monitor. And with only Mail open, the fan began to run at high RPM (HD fan at 1486, CPU fan at 3896, CPU temp 41, CPU heatsink temp 41, GPU Diode temp 95, GPU Heatsink temp 90) almost immediately...and it has yet to go off. I suspect it won't do so until I leave it alone and it "sleeps" for a while. I have read that other people have this problem too, and it clearly is related to something in Mountain Lion, since that was the triggering event. I believe Apple must be advised that this is a software glitch, and they should work on getting a patch out to us.
Any more advice? I'd love to hear it.

Why is the fan noisy on iMac? And how do I stop the noise?

Why is the fan noisy on iMac monitor and how do I rectify the problem?

Please do 2-3 SMC resets. If you don't know how please click Intel iMac SMC and PRAM resets for instructions.

How do I turn on the fans on my iMac to keep it from overheating? I used to be able to turn them on when I plugged in the computer and turned the computer on simultaneously but that stopped working.

how do I turn on the fans on my iMac to keep it from overheating?

You could use smcFanControl. That will control the fan speed but be aware the fan is always running. If you have a fan revving up due to overheating it could be because a temperature sensor is failing. Try running Apple Hardware Test (on your second installer DVD -- boot with the D key) to see if can detect any sensor problems.

The fan of my imac suddenly stays turning and very noisy!

the fan of my imac sudddenly starts to turn, and very loudly. I can't stop it, unless I set off the Mac..What tot do?

http://support.apple.com/kb/HT3964?viewlocale=en_US
These instructions have recenty been modified. They used to read hold the power button in for five seconds after unplugging. I'd try it both ways.

I add my comcast email to the mail on a iMac running Maverick. It downloads all my emails from there. How do i get my email to delete of the the server

I add my comcast email to the mail on a iMac running Maverick. It downloads all my emails from there. How do i get my email to delete of the the server

Go to Mail Preferences>Accounts, click the '+' button below the list of accounts and insert the settings, username and password as instructed. Some account types can be set up automatically as soon as Mail knows the emails address (because the server settings are built in), in other cases you will have to get them from your ISP.

Macbook pro fan making loud noises and going really fast. Now the fan doesn't work at all and my computer gets extremely hot almost instantly. Is there a way to fix it without having to pay a ton of money to have someone fix it for me?

I've had my Macbook pro for about 3 1/2 years now. It has worked great until recently. A few months ago I noticed that the fan would always run really fast when I was doing simple tasks. After a few weeks/months, the fan was still really fast but it also started to make these loud noises. Now, it only occasionally makes the loud noise if I move my computer after its been stationary for a while. The fan no longer works at all and my computer gets exceptionally hot almost instantly when I turn it on. Is there a way to fix this problem without having to pay a ton of money to have someone fix it for me?

You can try a SMC reset:
http://support.apple.com/kb/HT3964
you can also check this:
http://www.ifixit.com/Answers/Active?search=replace+fans&csrf=sqmfo0yj19

I have an iMac running Lion and W7 with boot camp . It has been operating flawlessly until I went to reboot into Mac tonight. Screen went black, and system is unresponsive. I've tried force quitting and turning power off. Hard drive starts but that's it..

I have a 5 month old iMac running Lion and W7 with the latest version of boot camp . It has been operating flawlessly until I went to reboot into Mac tonight. Screen went black, and system is unresponsive. I've tried force quitting and turning power off. Hard drive starts, there's a small amount of drive activity and that's it.

Hi Jane, your info may still be there, look in the Users folder at root of the drive, how many users are there there?
It sounds like this may have happened...
Return to default desktop, apparent "loss" of home directory, (it can happen spontaneously too)...
http://docs.info.apple.com/article.html?artnum=107854

Does anyone know why the fan on my imac wont turn off?

does anyone know why the fan on my imac wont turn off?

Peter.L.
Try resetting the SMC, it may take 2-3 attempts. Please post back with the results. If you're not sure how please follow the instructions in Intel iMac SMC and PRAM resets

The fan on my mac runs as soon as the computer is idle, sleeping or shut down, i have tried resetting the SMC but it doesn't work i have to turn off at mains stop the fan.

My Mac is 18 months old and the fan has decided to run as soon as the mac is idle, sleeping or shut down, as soon as i touch the mouse pad or keypad it stops, i have to turn it off at the mains to stop the fan running, i have also tried resetting the SMC but to no avail, please can someone help?

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The fan on my iMac never shuts off?

The fan on my iMac never shuts off? Would someone be able to suggest what is the probable cause of this and what can I do about it?

Sometimes an SMC reset can help resolve this. If it fixes it but proves to be temporary a trip to the workshop may be needed:
http://support.apple.com/kb/ht3964

The fan in my imac would not stop

The fan in my imac doesn't stop at all. i have updated the software to mac os 10.6.8. i have restarted but no luck wat do i do?

It may only need a SMC reset, please click iMac SMC and PRAM reset for instructions. Please let us know if that takes care of the problem.

The fan seems to be running more

the fan seems to be running more

Which model do you? see > How to identify Mac mini models
Perhaps it's full of dust and not cooling properly, when was the last time it was cleaned out...?

Give it to me straight -- Can the new Quad Core iMac run Maya well?

Hey all, I've been hunting around the interwebs for reviews of the new 27 inch quad core machine and I'm having a heck of a time tracking down specifics regarding iMacs and their ability to run Maya, After Effects, other adobe programs, etc.
I'm a student right now, going on four years. I own a small graphic design/animation business and I'm afraid my poor little Macbook Pro is going to keel over on me any day now. I've noticed a drop in performance in the last six months, especially with Maya and After Effects. So I've been evaluating options, and I know it has to run OSX. Windows has only given me headaches in regards to Maya work. In short, it's gonna be a Mac.
I've priced out a Mac Pro, and I'd rather not spend 3 grand on a machine that doesn't have a monitor, and may have properties that I'm paying for that I don't necessarily need: monstrous expandability, server capabilities, a big-stinking CPU footprint. But the mantra I always hear is "Only pro models can run Maya". So I reluctantly began putting away money for a new Mac Pro, uncertain if I'd be able to afford the software to go with it. Then I read this article:
http://gizmodo.com/5411073/why-its-gotten-straight-stupid-to-buy-a-mac-pro
In my mind, this article couldn't be more perfect for my position. It's telling me, "These high end iMacs are almost as powerful as the Mac Pro you can't afford. You can save a thousand bucks off the base computer. It comes with a monitor that you don't have to pay for. " But unfortunately the one question I need answered, that I'm having a heckuva time tracking down is "Can the stinking thing run Maya or can't it?" And if it can, will it be crippled?
So, please, anyone out there, can the new monster iMac run Maya, and if it can, does it suck at it?

No, there's no way to talk to Apple technical support via email, and they probably could not or would not be able to answer any questions about performance with third-party products. I doubt that more than a handful of Apple employees, sales rep or tech, would have access to any benchmark data on Maya with any model of Mac, and those Apple people would probably be those working with the Pro VAR channel or directly with large production companies.
I just got off the phone with an Apple sales associate who emphatically confirmed that the i7 iMac can run "all that Adobe stuff", but she'd never heard of Maya.... fun....
Not terribly surprising; Maya is pretty specialized and the Apple Store phone reps are generalists working mostly with consumers. Most people running Maya would be working with an Apple VAR or would otherwise have access to specialists. You might try talking to an Apple Pro Video/Film VAR - there are a number around the country though none in Salt Lake, apparently - or asking in the Autodesk forums:
http://area.autodesk.com/forum/autodesk-maya/
If you search for "iMac", you'll find some comments, though none I can find yet regarding performance with the new iMac models. But if you post asking if anyone has experience with Maya on the i7, you might get useful responses.
Regards.
P.S.
And on top of that I can't buy a 27 inch display separately
Well, you can, and they're not terribly expensive; under $400.00. But that might be more than your budget could accept, which may be what you meant. I'd elect a smaller primary monitor and go with two displays in any case, even with an iMac. I find it much better for workflow to have a monitor for the primary canvas and a separate one for tool palettes, etc.
Message was edited by: Dave Sawyer

The fan on my iMac runs on and off

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