Imac will not power up.  Is there a reset button somewhere?

My imac lost power when Grandson was playing a game.  We have not been able to restart it.  Is there a reset button on it.  Thanks for any suggestions?

check out this article:
Intel-based iMac: What to do if your computer won't turn on
http://support.apple.com/kb/ts1587

Similar Messages

  • HT1750 I tried to change the memory and now my Imac will not power on. and there are no beeps. what did I do wrong?

    I tried to change the memory and now my Imac will not power on. and there are no beeps. what did I do wrong?

    Don't know.  Could be any number of reasons.  Re-read the how to install RAM manual again for your model iMac.  Double & triple check to make sure you purchased the right RAM chips.   Make sure they are seated properly.  If you didn't hear a snap when seated, the RAM is not properly seated. 

  • My brand new iMac will not power up after an update restart, any suggestions?

    Any suggestions on why my IMac will not power up after it done a restart?

    Try an SMC reset and PRAM reset: https://discussions.apple.com/docs/DOC-3603
    If that doesn't help:
    See if it will start in Safe Boot: restart holding down the Shift key until you see a grey progress bar, type your admin password when prompted, let it continue to (hopefully) boot. Restart as normal from the Apple menu.
    If that didn't help, try booting into the Recovery HD: restart holding down Command+r and choose Disk Utility from the four choices when they appear on screen. Once DU has launched select your Macintosh HD on the left and click on 'repair disk'. If anything gets changed click on repair disk again until you get a clear pass, restart as normal from the Apple menu.
    If you still have problems, give AppleCare a call.

  • TS1587 My iMac will not power on .

    My iMac will not power on

    Hi I have some weird problem related to this and unfortunately either or apple or APS able to solve.
    I have picked a 27 iMac late 2012 model 2 montsh back and a APC Back up UPS 700.
    Whenevr I turn on the Main power> Turn on APC> Turn on iMac, the iMac doesn't turn on. I will have to unplug it and plug it back it works. It happens only when I start the UPS for the first time in the day. After that how many ever times I remove my iMac plug and plug it back to APC, it turns on.
    Initially I thought, it is the problem with the UPS and contacted APC where they replaced with a new UPS and its the same problem.
    Unfortunately, Apple is not able to tell that its the problem with the Apple iMac as it works fine when directly powered without using APC.
    So, the problem lies working with APC and iMac together.
    Could someone please help. The last option I have is to carry the UPS to a Apple store and see if it works fine with any other iMac.
    Also to mention, I did try SMC reset adn PRAM reset.

  • My iMac will not power up

    My iMac will not power up. It is a late 2008 21.5 inch. Any suggestions, tricks, soothsaying, or voodoo that one can apply here would be a great help. Thanks.

    If it doesn't have any video and doesn't make any sounds take your 20" (not 21.5") 2008 iMac in for repair, it has suffered a hardware failure. When you say it will not power up please be more descriptive, what exactly happens when you hit the power button and what troubleshooting have you tried?

  • HT1766 My ipad won't open up all of a sudden.  The battery is not dead. Is there a reset button?

    My ipad won't open up all of a sudden.  The battery is not dead. Is there a reset button?

    Try holding down the sleep and home buttons for about 20 seconds. When you see the silver apple it's rebooting and just let it do its thing.

  • I shut off my ipad, and now I have had a black screen with the "busy wheel" spinning for 3hours. Can't turn it off, can't get it to turn on! Is there a reset button somewhere?

    I shut of my Ipad and now i have a black screen with the "busy wheel" spinning on a black screen for 4 hours! Can't shut it off, can't turn it on!!! Is there a reset button somewhere?

    HI,
    Reset iPad.
    Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appear
    See Here:
    If iPad won't turn on, or the display stops responding
    From Here:
    http://www.apple.com/support/ipad/basics/

  • IMac will not power back on. Any ideas?

    I was installing maverick and suddenly my iMac shut down and will not power back on. Any ideas?

    Which model iMac do you have?  If still under warranty or you have AC, call them & let them deal w/it.
    Out of warranty:  Please detail ALL you have done so far in the way of troubleshooting?   Need this info to avoid the been there done that scenarios.

  • IMAC will not power up

    I just purchased an iMAC, unpacked it, set it up, plugged it in and it will not power up

    If it is new, contact Apple immediately.

  • IMac will not power up!  Help!

    I have an iMac that for some reason will not power up, at all.
    The specs are: 800 MHz, iMac G4, 512 MB.
    It stopped detecting the available WiFi network in my home regardless of where I located it. So I rest PRAM, and no change. I reset NVRAM and all in open firmware, no change. Pulled the RAM and AirPort card and reseated; no change.
    So I reset the PMU (pushed it quickly and only once) and now it will not start up at all. No fan. No lights. Nothing.
    I don't have any extra plugged into the iMac now. I pulled the RAM and Airport card and have tried booting with and without just the keyboard plugged in.
    I've unplugged it and let it set for over 24 hours and still nothing. I have noticed that when I plug it in, the overhead incandescent bench light on the same circuit dims or flickers ever so slightly for a very brief moment.
    So I'm leaning towards one of the following:
    1. PMU crash meaning I need to replace the logic board
    2. Fried logic board which is likely why the Airport card stopped responding (which, by the way, was somewhat intermitant at first)
    3. PMU crash that can somehow miraculously be reset saving me from having to get a replacement logic board
    4. Bad battery (haven't checked this yet as it seems the machine would show some sign of life if it had a bad battery. This thing is lifeless).

    Hello slee:
    You have, IMHO, analyzed the problem. I think it is time to take the computer to either an Apple store or to an Apple certified repair shop for diagnosis. I do not think you want to begin replacing things that may be OK.
    Barry

  • My imac will not power on

    I just bought my iMac. I used it in the store to set things up and now that I have it at home it will not power on! Super Frustrated!!

    Hi 3olivia,
    Thanks for using Apple Support Communities.  This article has steps to take if your computer will not turn on:
    Troubleshooting: My computer won't turn on
    http://support.apple.com/kb/TS1367
    Cheers,
    - Ari

  • HT3046 I have a Powerbook G4 that I have not used for a number of years.  I believe there are photos on it that I want to retrieve.  The unit will not power on and there is no evidence it is alive.  Neither the wall plug in or a new battery helped.  Sugge

    My G4 will not power up.  I installed a new battery and still nothing.  Help.

    Try taking out the main battery and letting the PB sit turned off but plugged into wall power for 24-48 hours. Then reinstall the main battery and try a start.
    When you try to start it, do you get any sounds, like the Mac "chimes" or hear the hard drive or optical drive spin up? If you get those sounds, try holding teh SHIFT key during startup; keep holding until you see a desktop and then lt go the key. Don't try using the comptuer at this point--it won't have all needed extensions loaded. Simply try a normal start to see fi that gets a regular desktop,
    Do you have the system install/restire disks that came with the computer, or retail install disk? Both are bootable. Try booting from one of those optical disks. Hold the c key to force booting from the optical drive.

  • Intel iMac will not power on

    I left my computer along for about an hour of using it all day, went back to it and it was shut off. I have not installed and software recently, other than the last OS X Lion update. That was on Tuesday, today is Thursday.
    I have attempted to reset the SMC but that did not solve the issue.
    http://support.apple.com/kb/TS1587
    I also took the next suggested step of removing the SODIMM ram and reinstalling it and that also did not solve the issue.
    My iMac is an Intel based model, 20" / 2x2Gb DDR2 667 MHz / 500GB hard drive / And I have the latest Mac OS X Lion installed.
    Other than taking it in for service do you have any suggestions?
    Thanks,
    Robert

    Just solved this problem by resetting the PRAM (parameter ram) as listed in the instruction manual. Press the following keys while pressing the POWER button (You might need a second pair of hands for this stunt):
    CMD + OPTION (ALT) + P + R
    Hearing the startup sound will be followed by the sound of the weight falling off your mind.
    I want to add that the iMac this solution worked for is running Snow Leopard, but the hardware is the same.
    All the best,
    Patrick

  • IMac will not power.

    Wag can I do to get my computer to power up?

    You posted in the PPC iMac group but show you have Mac OS X 10.8.4...so assuming the OS X is correct, did you power down and what have you done to power up?  Have y.ou tried holding the power button in for a few seconds, not just giving it a quick press?

  • Imac will not power on

    I switched my imac off for a week as I went on my holiday. Now it won't power on. Electroc cable is okay. Memory chip seems well sited. Nothing happens as I press the power button. Completly dead! Any ideas ???

    Marlene999 wrote:
    Thanks for prompt reply. The machine is "vintage" according to Apple ,It is about 5 years old. Where can I find PRAM battery to change it myself. I have some technical skills. The power cable is okay.
    From the Apple Store or AASP, this is not a user servicable part. Unless you are very technical and don't mind doing major surgery on the machine it's best left to the people I originally referred you to.

Maybe you are looking for

  • Mapping to an IDOC using an externally created XSL file

    I want to map a message to an IDoc using an ABAP XSLT transform. I am creating the XSLT in an external tool. I need to use an XSD definition of the IDOC as the target document of the mapping. I can get that in two ways: 1) Get the XSD definition of t

  • Web Services and database instances

    Hello, When creating web services, you have to choose which database instance you would like to use. At our company (as I'm sure every other company) we have a test database and a production database. During creation and testing, I would select our T

  • Simple java 3D head

    Hi all, I have just started to learn java 3D.I must build a 3D head for my masters project and i must also lip synch it with the text to speech synthesis that i have generated.I would much appreciate a simple example of a java 3D head which i could t

  • Foxfire version 22 is a disaster

    Version 22 has numerous defects. I wonder how this happened since it has ALWAYS been so dependable. Copy and paste functions won't work or are erratic. The web pages are over large and "blooming" sometimes appear "out of focus." These issues began im

  • Help coldfusion.runtime.CookieScope error

    Hi I'm new. I have a problem I have a web site created with coldfusion and I'm bulding an application in java who insert automatically information in the field of a form in a page of the site and then send this information with the post method. The a