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User profile for user: ddawg366
ddawg366 Author
User level: Level 1
0 points

emc 2429 does not power up.

Last Tuesday (2/3/15), the keyboard or mouse would not wake up the iMac from sleep. After cycling power on the keyboard and mouse, reverted to the power button. The iMac powered down but has not powered up since. No fans, optical drive is silent, nothing on the screen. I've tried unplugging, holding the power button down, no dice.


  • I've had the iMac since March of 2012.
  • Yosemite update performed 1/31/15
  • 2 years and 11 months old
  • My first Apple product.
  • No issues since first purchase.
  • Configured with
    • 1 256GB SSD and
    • 1 1TB HDD.
    • 16GB DRAM.


Suggestions?

iMac, OS X Yosemite (10.10.2), Not sure if its 10.10.2 or 10.10.1

Posted on Feb 9, 2015 9:09 PM

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2 replies
User profile for user: chuck_3rd
chuck_3rd
User level: Community Specialist

Feb 11, 2015 10:43 AM in response to ddawg366

Hello ddawg366,


Thanks for using Apple Support Communities.


From your post I see that your iMac is no powering on at all. While I see this is definitely a frustrating issue, there are some troubleshooting steps I'd like you to follow through first.


If your computer won't turn on, try each of these steps:

  1. Verify you have a good connection from your Mac to the wall outlet by confirming the power cord and adapter if present are securely connected and plugged in. To check if the wall outlet is working, plug in a lamp or other electrical device.
  2. If the wall outlet is working and you continue to have no power try another power cord or adapter if available. If it works you may need a replacement cord or adapter.

    Note: See Apple Portables: Troubleshooting MagSafe adapters for further troubleshooting with MagSafe adapters.

  3. Disconnect all accessories that are plugged in to the computer, such as a printer, hub, or other mobile device.
  4. If your Mac supports user-installable memory, solid state drive, or hard drive, and you recently installed any of these, make sure they are installed correctly and are compatible with your computer. If possible, reinstall the original memory or drive into the computer to find out if the behavior persists afterwards.
  5. Reset the SMC.
  6. If you are still unable to start up your computer after trying each of these steps, visit an Apple Store or Apple Authorized Service Provider (AASP) for further diagnosis. If you plan to visit an Apple Retail Store, make a reservation at the Genius Bar using http://www.apple.com/retail/geniusbar/ (available in some countries only).

    Note: Diagnostic fees may apply for issues not covered under warranty or the AppleCare Protection Plan (APP).


Troubleshooting: My computer won't turn on - Apple Support


Take care,

Alex H.

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emc 2429 does not power up.

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