Mac mini won't turn on. Please help

When I turn on my Mac mini, it shows the apple logo for few second, then it shut off again. I tried unplug power cord for 15 second, then plug it again for 5 second and turn it on. but it didn't work. please help...

Then try safe mode: OS X Yosemite: Start up in safe mode
If that doesn't solve anything, try Apple Diagnostics to see if a hardware error can be found: Using Apple Diagnostics - Apple Support

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    Please help

    Try this  - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.) No data/files will be erased.
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    Resolve these most common issues:
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    http://appletoolbox.com/2012/07/ipad-frozen-not-responding-how-to-fix/
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    http://appletoolbox.com/2012/10/black-or-blank-screen-on-ipad-or-iphone/
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  • My ipod touch got wet and won't turn on. please help

    My ipod touch got wet and won't turn on. please help

    First dry the iPod.
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    Then
    Try:
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  • My Mac Mini won't turn on after being stored please help"

    I stored my Mac mini for several months as I do every year but this time it won't turn on. Please help! It's an older version probably 2006-2007.

    check out this discussion.
    you should definitely get a decent UPS to protect your investment.
    something like the APC Back-UPS ES 700 should suffice.

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    Hi folks,
    A mac mini in my household won't turn over. It gets to the grey Apple screen with the spinning search circle, but stays that way.
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    I tried resetting the pram, using the included install disk to check the HD with disc first aid with no results. Will I have to re-install the OS now?
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    Welcome to Apple Discussions!
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    This morning my Mac Mini was working fine.
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    If Tiger were 'crap' everyone would have exactly the same problem you are having. Clearly that isn't the issue.
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    I have the same problem with my iPod, only PLEASE Reply to this, I dont want to buy another iPod. The excat same thing happened to me though, and I need some help. I tired different USBs, putting it into charge mode, resetting it, and putting it into a speaker dock. The problem is definitely with the iPod. But Im begging for help!! PLEASE!!

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    I will explain in as much detail as I can what has happened.
    I recently bought a Mac Mini from the apple store. it has 2GB of ram and a 1.8 processor (i think cant remember)
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    Hi geodisicdome-
    Greetings and welcome to the Apple boards
    That is a bummer about your Mac.
    You have a 1 year warranty. It may be time to exercise said warranty and have the unit looked at by an Authorized Apple Service Center.
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    -DaddyPaycheck

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    Try:
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    How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
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    Apple Retail Store - Genius Bar       

  • My MacBook Pro shutdown after it said my USB was draining to much power and now won't turn on please help

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    USB power management is part of the SMC (system management controller).  Try to reset SMC: http://support.apple.com/kb/HT3964
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  • My Creative Zen4gb Won't turn on please help...............

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    Sorry for the late response I brought a charger ,It still wouldn't turn on for anything, The only thing that it did when I plugged in the charger adapter into the wall the light was blue for a few secs and that was it, It was charging for 7hours or more, I try to get the recovery thing on my computer but everytime I plug my mp3 to my computer its like it doesn't exist basically my player is not turning on for nothing.
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    Try the basic troubleshooting steps.
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    Check out the new remodeled MacOSG website! 24-hour Apple-related news & support.
     MacOSG: An Apple User Group  iTunes: MacOSG Podcast  Follow us on Twitter: MacOSG

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