IMac G5 Sounds like a jet taking off

Our iMac G5 sounds like a jet taking off shortly after we boot it up and try to open any applications. Also, when we try to power down and then turn it back on, a flashing folder shows up with a question mark and finder icon. Any ideas out there?

If you have not already, reset PRAM
http://support.apple.com/kb/HT1379
and if that does not help, reset SMU (power management)
http://support.apple.com/kb/HT1767
FYI - For some reason, you are posting in the category for the older iMac G3 (CRT display).

Similar Messages

  • 27in iMac very loud fan noise. 3hrs after setup and running the fan came on. Sounded like a jet taking off.

    Brand new fathers day gift. The unit is cool to the touch. Air being blown out of bottom is cool. Shut down unit was what I found to get it to shut off. That worked. I get up this morning and wake computer from sleeping and immediately fan comes on. I'm thinking I should take it back. 2 days old but the amount of updating it needed to do it was prolly built months ago.

    Tammy,
    You can do a SMC reset. BTW the port on the bottom is the air intake, the exhaust is on the back on the upper left. However I'd recommend immediately contacting Apple Care. The machine should be OK right out of the box. You can find the contact information in your country at AppleCare Contact Info.
    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.

  • MBP frequently slows down and sounds like an aircraft taking off

    I have the original MBP with the following: OS X 10.5.6, Processor: 2.16Ghz Intel Core Duo, Memory: 2GB 667 Mhz DDR2 SDRAM, 120GB HD
    I've recently started to notice that while running 2-3 applications my MBP's drive will frequently (happens about 4-5 times a day) start sounding like an aircraft taking off and some of the system resources jump up to around 100%.
    What can I do to remedy this situation?

    Take it to your nearest Apple Store so they can hear it for themselves. Or if you have AppleCare or your computer is still under warranty, call Apple. If you computer really is that loud, then the Apple techs should have no problem hearing your computer +taking off+ over the phone.
    Let Apple deal w/it.

  • G4 Hangs, Sounds like an Airplane Taking Off

    My G4 has been running smoothly on Leopard so far. Lately, though, it has started hanging often... no spinning wheel, no opportunity to force quit... it literally freezes. I hold down the power button to turn it off and then on reboot the fan goes crazy... sounds like an airplane taking off.
    I have fixed disk permissions. Reset PMU. Run fsck -fy. And it's still doing it.
    I am also running several usb devices through a belkin hub: iPod shuffle, external maxtor 80Gig for time machine, and occasionally a canon powershot camera.
    Last time I tried to import photos off the camera it had all kinds of trouble. Had to reboot several times.
    I realize this thing is getting old... but my whole life is on it and I can't really replace right now. Any ideas?
    Thanks!
    Josh

    If this is a Mirrored Drive Doors model, the fans are likely working as designed.
    There are circuits inside that run the internal fans on their highest setting by default. When the computer is running properly, the software periodically checks the CPU temperature, and sets the fan to an appropriate setting -- almost always less than maximum.
    At initial power up, and when the fan hardware is ignored (not turned down) for some large part of a minute, the fan circuits revert to the default, maximum setting to keep the CPU from getting so hot it is damaged. Sure is loud, isn't it!
    If you are running 10.4 or later, boot it up (if you can) and check About this Mac > More Info > Diagnostics -- to see if is detecting any failures at startup.
    Message was edited by: Grant Bennet-Alder

  • Computer sounds like it is taking off

    This may be a simple fix, but for some time my computer makes an incredibly loud background noise .. almost sounds like it is taking off. A very, very loud humming. I have run diagnostics on it and reinstalled applications, but to no avail. This may be a hardware problem, but I am unable to run the Apple Hardware test that came with the start-up software. Any suggestions?

    This would get better response and a more accurate answer if posted in the G5 usage forum.
    Cheers! DALE

  • My G5 is not booting up and it sounds like an airplane taking off.  I replaced the 3.6v battery, but did not correct the problem.  Any suggestions?

    My G5 is not booting up and it sounds like an airplane taking off.  I replaced the 3.6V battery, but it did not correct the problem.  Any suggestions??

    Resetting the Logic Board
    Resetting the logic board can resolve many system problems. Whenever you have a
    unit that fails to power up, you should follow this procedure
    before replacing any modules.
    1 Unplug the computer.
    2 Press the Power On button on the front of the unit.
    3 Open the side access panel.
    4 Remove the battery from the logic board.
    5 Wait at least 10 minutes before replacing the battery.
    6 Make sure the battery is installed in the correct +/-
    direction.
    7 Reassemble the computer and test the unit.
     Cheers, Tom

  • After installation it sounds like a 747 taking off.

    Hello,
    After I installed Leopard on a dual partitioned hard drive (the other partition has 10.4.9 and FCStudio 1)and Final Cut Studio 2, I then rebooted the computer. It never booted up, but it did sound like a 747 taking off. Only after a few minutes did I have to force a shutdown to end this noise and power. What is going on here and what am I missing? Does it have to do with installing Leopard on a partitioned drive or installing Final Cut Studio 2 on the Leopard side of the partitioned drive? Your help would be appreciated.
    Thanks,
    Jordan

    Jordan Simkins wrote:
    Hello,
    After I installed Leopard on a dual partitioned hard drive (the other partition has 10.4.9 and FCStudio 1)and Final Cut Studio 2, I then rebooted the computer. It never booted up, but it did sound like a 747 taking off. Only after a few minutes did I have to force a shutdown to end this noise and power. What is going on here and what am I missing? Does it have to do with installing Leopard on a partitioned drive or installing Final Cut Studio 2 on the Leopard side of the partitioned drive? Your help would be appreciated.
    Thanks,
    Jordan
    I have a dual G5 and that sound you hear always happens when the computer first starts up but quickly stops as soon as an OS is booted, I believe it is all the fans running full tilt. However, in your case, something happened and your system cannot find an OS and therefore that loud roar continues for a long time.
    The noise is normal - the fact that it keeps going is not normal but related to a failed install or at least the inability of your system to boot into an OS.
    Start it up and hold down the Option key and you should get a screen with all the bootable partitions showing. You should at least see your Tiger OS.
    You may have to reinstall or repair the Leopard partition but the Tiger should still be working.

  • Sounds like a plane taking off!

    The iMac makes a loud noise similar to that of an airplane takeoff – at first I thought that it was mostly related to web usage, but the more troubleshooting that I do, the more I realize that applications seem irrelevant.
    I took it to the Apple Store and, although they replaced my power supply, the noise issue has not been addressed. I plugged it into different power supplies and electrical outlets but that does not make a difference.
    I assume that the noise is being generated by a fan but that’s just a guess because I do not know a great deal about the inner workings of the iMac hardware. Could it be the processor? The fan? Or some other component?
    I have had this issue since purchasing the iMac fifteen months ago but I just assumed that it was “normal”.
    Has anyone heard of this?
    Bill

    Sorry to hear about your woes.The only time you shoud really hear the fans is if: a) The ambient temperature is high and, b) The computer is being stressed (Photoshop, video editing etc.)
    My advice: call Apple and explain the problem. But before you call, note down your serial number (it's on the bottom of the stand), memory, OS X version, and detail the problem. You could also run the extended hardware test from the installation disc. To do this, start your computer normally and insert OSX disc 1 (mine came with 2 DVDs) when you get to the desktop. Restart, and hold the 'option' button on the keyboard. When the computer is ready, select the hardware test (surprise!). Select the extended test... and wait... and wait. It takes about 1 hour and 45 minutes on my computer. By the way, it's normal for the fans to howl when the test is in progress, so don't worry about that. If there are any messages, note them too. Then call Apple.
    Good luck!
    iMac G5 ALS   Mac OS X (10.4.7)  
    iMac G5 ALS   Mac OS X (10.4.7)  
    iMac G5 ALS    
    iMac G5 ALS   Mac OS X (10.4.7)  

  • When i turn on my iMac its sounds like a light bulb struguling

    When i turn on my iMac its sounds like a light bulb struguling

    Not sure what a struggling light bulb sounds like. It is very hard to describe sounds sometimes. Is it an electrical buzzing or crackling sound? Does the computer still startup normally after the sound? You have Lion so I wonder if it is a new iMac. If so, call AppleCare.

  • POWERMAC sounds like a jet engine when trying to start up...!

    Ive been using my G4 powermac as a 2nd computer and havent had any problems with it until today.
    I turned the computer on and I get the white screen with the apple and then the computer gradually starts to get louder, and louder, and louder - almost sounds like a jet engine.  I immediatly shut the computer down holding down the power button.
    I tried it again and the same happened.  Ive never heard the computer make this sound and it was getting louder and louder and was too afraid to let it continue.
    I have important things on my 2nd computer that I need.
    Should I let it continue?  Has anyone experienced this before?  I shut it down while the computer is still on the startup screen.
    Help.

    That is a safety feature to make sure it's not overheating when there's no OS to check temps or control the fans... at least on G5s, can't remember on my MDDs.
    I have important things on my 2nd computer that I need.
    If worse comes to worse you can pull the drive(s) to get at the info, or possibly use FireWire target disk mode...
    http://support.apple.com/kb/HT1661

  • New 27'' Imac fan sounds like jet engine

    Hi all, i am having some serious issues with my attempt to enjoy apple computers. I am a first time user coming from pc's, just due mainly to the price difference. I just got my first apple computer, a 27'' imac (the standard one, no bells and whistles for this struggling college student). Just want one mainly for recording music and doing research papers. Had to get the first one replaced due to a bad optical drive in the first day. Just brought the replacement home and after 2 days i turn it on and it sounds like a 747 is taking off in my bedroom. I am not the most computer savvy person around, but looked up as much as i could on forums. Tried all the resets and nothing works. Everytime the computer is on there is a turbine that also comes on. I downloaded the istat widget thing and it says my cpu fan is running at over 3000 rpms. I'm no air dispersment specialist, but to me that sounds high. Does anyone know if this is common as of late, and any possible fixes?? I have an telephone appointment with an apple guy tomorrow, but am pretty sure it is going to just turn into a "buy the 3 year $170 applecare plan" speech, like when i called for the disc drive.
    Second, are apple computers poorly made?? I know it's wierd asking on the apple website, but i have to get some answers. 2000 dollars is alot of money to me, and the fact that i've had 2 problems in less than a week's time scares me. Should i keep trying to get a good imac that won't crap out, or should i buy something else? Thanks in advance for any replies, i really appreciate it.

    Thank you guys for your comments and suggestions. I really appreciate it. I'm thinking of taking it in for repair or replacement. My only concern is that this is 2 times in one week i've had to go and get it replaced. And that's brand new. What is the reliablity for this product going to be in 6 months to a year. For 2000 dollars i don't expect to have to do that. Also apple is not paying my labor to repackage everything, take it down 5 flights of stairs, go to the inconvinently placed apple store at the center of an outdoor mall, pay for my gas, or for my time that i could be using to do something productive. I guess maybe i'm just frustrated, but still. Now if i get a new one i may not be able to enjoy it as much because i will just be waiting for it to break down. Maybe i'll just cut a flap in the new box so i can see the screen and a few holes in the back of the box to run the cables. Then when it breaks down i can just close the flap and push the cables back through, and have it all ready to go back in no time flat. Thank you again for your suggestions, i'm just very ticked off right now.

  • Sounds like a jet airplane!

    Okay, I started having issues with my Dual G5, (lastest available updates) about 1 month ago. We have since then replaced it with a new iMac, but I would still really like to keep the box as a back-up or even turn it into a server.
    Every once in a while it will just "lock-up", mouse doesn't move, no beachball, no nothing. after about 2-3 minutes the fans kick on extra hard and fast and this thing sounds as if it's getting ready to break the earth's atmosphere, lol
    I have no idea where to even look for a problem. I have pulled all the drives and checked them in my Voyager "toaster" drive and they all work fine, and the main drive from the G5 is even bootable and works great, so i'm assumming it's something to do with the G5's hardware.
    Is this something that Apple would even fix, (and I don't mean for free), but will they still work on non intel G5's? is it worth taking to apple or does it sound like something I could fix or is there a 3rd party repair place anyone would suggest?
    added: Sometimes upon staring up I will see the HD symbol with a line through it, I'll do a hard power down and then restart and it sees the drive just fine. I also tested by removing those drives and putting in cloned drives, it at times gave the same thing, yet the removed drives in another machine work fine, so I'm really thinking this is hardware.
    Message was edited by: Chris Fritsche

    Chris Fritsche wrote:
    Every once in a while it will just "lock-up", mouse doesn't move, no beachball, no nothing.
    The original Apple Pro mouse cable frays in the chord just as it exits the mouse, over time, and shorts out causing symptoms similar to yours. You can't see the fray by looking at it thru the exterior covering. This can happen to third party mice over time too.
    Mine did it. I plugged it into a different port, so the chord exited the mouse in a different direction, and had very few freezes after that. Once I got over my frugality (cheapness!) I bought a new one. Eventually it got to where I couldn't even work for more then a few minutes without a freeze.
    So, try a known good mouse to see if that's the problem. Perhaps borrow one from a friend so you don't purchase something you don't need.
    Don Archibald, a Level 5 here, said the USB ports on the keyboard (for you desktop users) are underpowered and can cause this problem also if the mouse is plugged in there. This can even fry the keyboard sometimes (happened to him). Try plugging your mouse into a port on your monitor or tower.
    More in this Apple doc.
    after about 2-3 minutes the fans kick on extra hard and fast and this thing sounds as if it's getting ready to break the earth's atmosphere, lol
    That's quite normal. It's a fail safe, when your OS isn't working, to keep your Mac cool as it has no idea if you Mac is overheating or not.
    and the main drive from the G5 is even bootable and works great
    In another Mac?
    , so i'm assumming it's something to do with the G5's hardware.
    If you think that try the following....
    I would try running the extended version of your Apple Hardware Test.
    It's not perfect but may flag something.
    Is this something that Apple would even fix, (and I don't mean for free), but will they still work on non intel G5's? is it worth taking to apple or does it sound like something I could fix or is there a 3rd party repair place anyone would suggest?
    Yes, I think Apple repair still works on them, if not a third party shop will. But, let's see if we can get you going.
    added: Sometimes upon staring up I will see the HD symbol with a line through it,
    That makes me wonder, have you checked your drives health using S.M.A.R.T. status in Disk Utility (located in your utilities folder on your drive)?
    If your drive doesn't stay running long enough,
    Try using Disk Utility to do a Disk Repair, as shown in this link, while booted up on your install disk. Then check its S.M.A.R.T. status there.
    You could have some directory corruption. Let us know what errors Disk Utility reports and if DU was able to repair them. Disk Utility's Disk Repair is not perfect and may not find or repair all directory issues. A stronger utility may be required to finish the job.
    After that Repair Permissions.
    No need to report Permissions errors....we all get them.
    I also tested by removing those drives and putting in cloned drives, it at times gave the same thing,
    Are those clones of your G5 from before you had this trouble?
    yet the removed drives in another machine work fine, so I'm really thinking this is hardware.
    What Mac are you testing them on?
    Also, have you ever replaced the PRAM battery on this G5?
     DALE

  • 27'' iMac making sound like bongos drumming

    f`or lack of a better description my 27'' iMac is making a sound like someone is constantly drumming on bongos.  It will stop for a few seconds and then start up again until I restart the computer. What is this.

    A suggestion across more than a few discussions, says to replace the keyboard.
    If a keyface is stuck down, or the switch faulty inside the keyboard, the audio
    sound usually associated with that function (with sounds on) is what you hear.
    You could try making a new user account and test for this odd sound there.
    If it still exists after a time of use, the keyboard may be OK. Still you may
    have to contact Apple Store and set an appointment with a Genius about it.
    {However those with a background in strange movies have another opinion...
    it's jumanji: we've wondered where it would turn up next.}
    Anyway, you could see if your Mac & k/b is still under warranty; or take it to an
    Apple Store genius bar (with appointment) and ask they check it for you.
    Good luck & happy computing!

  • G5 sounds like a jet

    we have a power mac g5 with the following specs:
    machine name: power mac g5
    machine model: powermac 7,3
    CPU: powerpc g5 (3.0)
    number of cpus: 2
    cpu speed: 2.5 ghz
    memory 2.5 gb
    is there some things i can do to get the fans to run quieter?. if i had to put it on a scale where 5 sounds like my server room then right now its about 4.75. its pretty loud and annoying.

    Looks good.
    Try this...
    How to reset the SMU/PMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005) ...
    http://support.apple.com/kb/HT1436
    Earlier G3, G4, G5 models...
    http://support.apple.com/kb/HT1939
    Have you done a PRAM reset, CMDOption+pr...
    http://docs.info.apple.com/article.html?artnum=2238

  • "Sounds" like someone is taking a snapshot of g5 without my permission

    Hi There,
    I'm concerned I'm being hacked because from time to time I hear the sound of a camera lens shutter.
    Is there a way of detecting if there has been activity?
    Any advice or help will be much appreciated.
    Kindest regards
    Rob Slaney

    Sorry, Console is in Applications>Utilities, run that and watch the System & Console Logs around the time of the click.
    But if you don't have an iSight or Camera hooked up, then the Sound is likely a Hard drive going bad, or a Fan, or...
    If you wish to check further on the Hacking possibility, (doesn't sound like it to me, but), might look into this...
    Flying Buttress/Brickhouse...
    http://personalpages.tds.net/~brian_hill/downloads.html

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