Imac fan will not stop running after power outage .

unpluuged after we lost power . now the fan runs constantly.

If you note that your Mac fans don't work correctly, do a SMC reset > http://support.apple.com/kb/HT3964

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Imac will not start up after power outage

My iMac G5 will not turn on after the power went out. I can hear a clicking noise which seems to be coming from the fan/power supply area when it is plugged in. Nothing happens when the power button is pressed. Tried resetting PMU and still nothing. What do you think the problem could be? Bad power supply?
Thanks.
iMac G5 17" Mac OS X (10.4.9)

I just went through the steps of troubleshooting with an iMac that won't turn on using the led indicators with the back taken off, the first led light lights but it seems to blink very quickly (in unison with the clicking noise), does not stay solid. After pressing the SMU and then the internal power button, nothing happens again, and the 2nd led light does not light even momentarily. So it tells me that I need a new logic board...what kind of costs are we talking about here, anybody have a ballpark idea? Thanks for the help.
Pat

Updated to 10.4.8 and fan will not stop running

Ran the 10.4.8 update on my 1.25 G4 powerbook and it worked fine. Ran the update on my my 1.42 GHz G4 mac mini and the fan has not stopped running once. The fan hardy ever came on before. Any one else have this problem?
what can i do to solve this?
mac mini + power book Mac OS X (10.4.8)

Yep, have a Macbook Pro 1.83 Ghz (week 15) with 2GB SDRAM. Since 10.4.8 I have been experiencing the same issue. As somebody else descibed it on this site its alike a spinning wheel sound on a bicycle. Recently Apple have been messing around alot causing problems with networking and CaptureOne and so on. Hope they get their act together soon.
MacBook Pro 1.83 Ghz Mac OS X (10.4.8)

HT1446 my battery on macbook pro will not charge, light doesn't show on connector (but works with my partners mac) and fan will not stop running.

Help please...fan won't stop running and battery just has a cross through it on screen. Connector does not light up,

ry resetting the SMC:
SMC
http://support.apple.com/kb/ht3964
If you look at the battery in System Info, does it show as ok?

IMac fan won't stop running after Mavericks install

My fan seems be running all the time, in sleep mode and shut down (when power cord is plugged in).
This started after installing Mavericks??????????????????????????????? HELP.

I have the same issue with my 2012 iMac 2.7 Intel Core i5 21.5"
The iMac fan runs constantly immediately when it is shut down and after a minute or so when it is put in standby.
This iMac just started doing this.
I have done the SMC reset numerous times and also the PRAM and DVRAM reset by hitting the Command, Option, P, and R after restarting.
This issue is beyond frustrating as the only way to shut off the fan ever is to pull the power cord.
Any additonal help would be appreciated.

Desktop will not come on after power outage

We had a power outage for about 5 seconds. Everything came back on. When I hit power button on PC, it came on and booted back up. About 3 minutes later, it cut off. I restarted it again and it did same thing again. When I tried to turn it on again, nothing happened. It has a green light above power cord lit up but when I hit power button, light goes out. PC was on surge protector when power went off.

Here is the standard HP diagnostic for the power supply. Likely it has been damaged by the spike. The slimline's use a specialty PSU, called a TFX is most cases. It would help if you'd mention the exact model #. Examples, more.
I am a volunteer. I am not an HP employee.
To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved. You can render both Solution and KUDO.
The Law of Effect states that positive reinforcement increases the probability of a behavior being repeated. (B.F.Skinner). You toss me KUDO and/or Solution, and I perform better.
(2) HP DV7t i7 3160QM 2.3Ghz 8GB
HP m9200t E8400,Win7 Pro 32 bit. 4GB RAM, ASUS 550Ti 2GB, Rosewill 630W. 1T HD SATA 3Gb/s
Custom Asus P8P67, I7-2600k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX660 2GB, 750W OCZ, 1T HD SATA 6Gb/s
Custom Asus P8Z77, I7-3770k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX670 2GB, 750W OCZ, 1T HD SATA 6Gb/s
Both Customs use Rosewill Blackhawk case.
Printer -- HP OfficeJet Pro 8600 Plus

My AppleTV stopped working after power outage. Light is on and I rebooted and reset w remote but it keeps giving me a pic of the Hdmi cord like it is not recognizing the hdmi as being plugged in. I've unplugged it several times.

My AppleTV stopped working after power outage. Light is on and I rebooted and reset w remote but it keeps giving me a pic of the Hdmi cord like it is not recognizing the hdmi as being plugged in. I've unplugged it several times.

It is in recovery mode. The picture is telling you to connect to iTunes via micro usb cable in order to restore.
http://support.apple.com/kb/HT4367?viewlocale=en_US&locale=en_US

Dock icons will not stop running

The icons on my dock will not stop running. They have the small blue light under them when in use but the light does not go off when I close the program. I have been quitting them by holding down the curser on the icon until menu comes up to quit. Help, please. Thanks, Arudi

yup. bizarre. logged out of MobileMe and I try to move the Keychain Icon from the third on the left to the last on the right and -whoooo-oop - it slides back to the left. no fun. like having a gremlin moving books around in my library or something...

Sound Test will not stop running

I have a sound bar hooked into my desktop tower using the front headphone jack. I tried to run a sound test on it and the sound test worked. Now, the sound test will not stop running. Every time I turn on the sound bar, I get the annoying, electronic siren noise. How do I stop this and return the sound bar to its functioning state?

Thanks. Lease see the attached link http://support.apple.com/kb/ht4097#
Click on the 'more' link near the beginning as this may be crucial in your case. Also note the very last paragraph regarding the computer!

Internal fan will not stop

computer got unplugged one day and when attempted to re-boot the power button was jammed. Let sit for a few hours and tried again to turn on. With some wiggling we got the computer to turn on but the internal fan is running on high and will not quit. After a few hours of the fan running (so we would know that the computer was not hot) we shut it down thinking maybe re-booting it would help. We left the office with the computer shut off and the next morning we came in a started it up and the fan is still running on high. We know the computer is not hot and since the noise is very annoying we would love to know how to make it stop. Any suggestions would be lovely.

Not exactly sure why this is in the Remote Desktop community, but try this:
Unplug the computer.
Wait a few seconds.
Press the power button in for about 5 seconds then release it.
Wait a few seconds.
Plug the computer back in and then start it up
I think they call this resetting the SMC.

IMac screen will not come on after sleep

iMac screen does not come on after sleeping for a period of time - twice now from overnight. The back seems to be warm. I have to hold the on button until I hear the drive and system shut down. Then after period of time it will start just fine. ?????

I know that some of the older imacs had overheating problems that caused unexpected sleep. try to keep the display darker and keep the room not too hot. That seems to usually solve the issue.

Fans are not stopping working after BIOS update on Satellite A200

Hi,
Im using Satellite A200-1bp. I recently upgrade my BIOS 5.20-win and my fans are not stopping working all the time.
I think its reason is BIOS upgrade
How can i find lower bios?
Please help me..

Hello
Maybe this thread can help http://forums.computers.toshiba-europe.com/forums//thread.jspa?messageID=128543
Be sure you use right BIOS for your notebook model.

Imac will not boot up after power failure

Does anyone know why i have to unplug the power cable from the back of my imac after every power failure at my home to get the imac to boot up. I've tried resetting the surge protecter and unplugging there. However, the only option is to unplug the cord from the back of the monitor/imac before it will boot up. Any ideas or is this a known bug.

You're effectively resetting the SMC.
If you're getting that many power outages you need to be using a UPS (Uninteruptible Power supply), not just a surge protecter.
Power interruptions at the wrong time can cause directory damage or even physical damage to the Hard Drive if the heads were reading or wriing at the time.

IMac G5 does not turn on after power cord knocked off

I have an iMac G5 that I recently passed on to my daughter. For the past few years it has been working fine except for one occasion that I replaced the power supply. At that time it was still covered by warranty and Apple sent me a replacement unit that I installed myself. Lately, the power cord was knocked off while the computer was on and now it will not turn on completely. It starts for about 15 seconds up to the gray Apple logo then the screen goes blank. I monitored the LEDs and all 3 do turn on then the computer shuts down. At first I thought it's the power supply that was affected with the power cord accident, and bought a replacement unit. I have just installed it but still the same problem exist. I am now asking for help from the expert souls out there to save this computer. Thanks.

No more ideas except to try starting from the install disc and see if that works. Resetting the PRAM might jolt it back to life, it's worth a try, but I am not hopeful.
If you do take it in, please let us know whether it was the logic board...

HP Product Improvement Study pop-ups will not stop even after uninstalling it.

I opted in to the Product Support feature when I was installing my HP Pro 8600 thinking this would be only a one time deal but I was wrong. At least twice a week the notification pops up that the information gathered is ready to be transmitted and quite frankly is getting more than annoying.
I have gone to the Control Panel and uninstalled the program for this feature, rebooted and still this message will not go away. Is there anything else that needs to be uninstalled or has HP planted something in the Registry that needs to be removed?
Are there any other options other than totally uninstalling the printer software and re-installing it? This last option shouldn't be an option at all as there should be an easier fix.
This question was solved.
View Solution.

If you uninstall the program HP OfficeJet 8600 Product Improvement Study from the Control Panel, you should not see any popups unless the uninstall didnt work for some reason.
Can you go to All Programs\HP\HP OfficeJet 8600 and look for HP Product Improvement Study and click it. This should launch a screen that lets you opt out of the study. Click the I Decline button and you should not see any more pop-ups.
Hope this helps
I work for HP but the replies and suggestions are my own.

Imac fan will not stop running after power outage .

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