My Macbook will not turn on ... display turns on and the dial spins but desktop does not pop up

My computer will turn on and the apple sign pops up and the dial continues to spin but desktop will not pop up.

Grey Screen and spinning wheel at startup
http://support.apple.com/kb/PH11044
Repair Disk
Steps 2 through 8
http://support.apple.com/kb/PH5836
Reinstall OS X
http://support.apple.com/kb/PH10763?viewlocale=en_US
Additional Steps
http://support.apple.com/kb/PH10929

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My PB G4 Turns on and the HD Spins and the Start up sound comes on but the screen is blank and then a flash come on then goes out Please Help

My PB G4 is full charged and when i go to turn it on The HD spins but and the Start up sound Verifys that it came on but the is nothing on the screen untill a flash of white square like appers on the screen for about half a second. I don't Know whats wrong
It is a PB G4 with a 12" Screen

See this Apple note on booting and video issues.

My macbook air won't turn on and the led light on the cord doesn't light up

I can't get my macbook air to turn on and the cord light won't go on, either. It was not dead last night when I shut it down . . . any ideas?

Hello srsymington,
Thanks for using Apple Support Communities.
To troubleshoot this issue where your MacBook Air will not power on, I'd like you to please reset the SMC as directed below.
Resetting the SMC on portables with a battery you should not remove on your own
Note: Portable computers that have a battery you should not remove on your own include MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
Intel-based Macs: Resetting the System Management Controller (SMC)
Cheers,
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My macbook won't turn on, it makes a whirring noise like it wants to turn on, and the light is there, but won't turn on. What could this be?

When I turn my computer (which is an older 2009 macbook pro) on it makes a whirring sound like it wants to turn on, and the light flashes, but the screen and everything else will not turn on. It is fully charged. What could this possibly be? And if its something I can buy to fix, how much money may it cost me?

If you are confident enough
make sure you are not wearing anything that generates static, ground yourself or at least touch a radiator or something that goes to earth to remove any static discharge
remove the bottom casing/cover
disconnect the battery which should just be a plug into the main logic board (some MBP's have a shield over the battery connector)
Whilst the battery is disconnected - presss and hold the power button for 5 seconds or so to reset the SMC
Remove both RAM modules if present and reseat them
then temporarily replace the botom case/cover without screwing it on and test
If that does not resolve the issue, try one RAM module at a time in each RAM slot

I need help doing a clean install.( keyboard shortcuts?).Macbook will not read any of the disks/ turns off

I installed a new 'used' Logic board, im my macbook 13.3 and it turned right on!..( i was out of warrenty)
Apple logo and spiing wheel, then turns off..
After reading several forums, I went into self mode, did the 2 checks within in and got an error which pointed to the OS software being currupted..
so I have inserted the Os disk, the disk-repair disk and a disk warrior disk, but none of them are being read. I hear the Macbook starting to read the disk then the disks are ejected and the systen turns off.
Is there a way i can do a clean install on the HD? shortcut keyboard shortcuts?
or force the disks to be read as the first boot device like of that in a PC's bios settup?
I have no data on the computer that I wish to save btw.. just want a fresh install..
thanks for any help in advance.

Unfortunately the necessary software to reinstall your OS is not located on the hard drive. If your MacBook will not accept the disks you have you are going to need a hardware repair, probably the optical drive.
If you have access to another MacBook you may be able to install the OS on an external hard drive and use that to boot your MacBook. You may then be able to get any data off of your hard drive.
Best of luck.

My macbook will not turn off any tips?

my macbook will not turn off any tips please?

Thanks I took the battery out & boy was I glad to see it reboot

I connected my iPad to wireless, now my MacBook will not download new mail (Charter) unless I turn the iPad off. Please help?

I connected my iPad to wireless, now my MacBook will not download new mail (Charter) unless I turn the iPad off. Please help?

Is there anything in this link to help, particularly in the Troubleshooting section at the very end? http://www.myaccount.charter.com/customers/support.aspx?supportarticleid=2234

MacBook will not turn on, quite clicking sound when connected to power

I cleaned my MacBook with a damp cloth and now the MacBook will not boot. the first time I turned it on after I cleaned it. it turned on and the screen came on the grey apple loading screen, went away for a minute when I came back it had turned itself off.
Now when I press the power button it will not do anything at all, nothing turns on it is as it is dead. I have left it outside in the sun for a couple of days incase any water got into the machine but it still will not turn on.
When I connect the power cord to the MacBook the is a faint clicking sound coming from it.
This machine is about 3 years old so it is out of warranty.
Any suggestions to what it could be ?

This same thing just happened with mine - the clicking sounds like it's coming from the left speaker. I tried an smc reset and also took a look at the logic board to look for anything I might notice. What was the outcome for you - any info would be very helpful!

My MacBook will not turn on unless it's connected to a charger. However, when it's on and charging, it says that it has 0% battery life despite the green light on the charger. How can I fix this?

My MacBook will not turn on unless it's connected to a charger/power source. However, when it is on and charging, it says that it has 0% battery life despite the green light on the charger. How can I fix this?

Your battery has reached the end of its life. If you have a MacBook with the removable battery you can get a new third party battery fairly cheap on eBay.
Black Batteries http://shop.ebay.com/i.html?_nkw=macbook+black+battery&_sacat=0&LH_BIN=1&_sop=12 &_dmpt=Laptop_Batteries&_odkw=macbook+white+battery&_osacat=0&_trksid=p3286.c0. m 270.l1313
White Batteries http://shop.ebay.com/i.html?_nkw=macbook+white+battery&_sacat=0&LH_BIN=1&_sop=12 &_dmpt=Laptop_Batteries&_odkw=macbook+black+battery&_osacat=0&_trksid=p3286.c0. m 270.l1313
Or for $129 from Apple http://store.apple.com/us/product/MA566LL/A?mco=MTY3ODQ5OTY

MacBook will not turn on. I get Apple fiqure and then the wheel just spins. What can I do

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Reinstall OS X. Either use your installer DVD or do a network restore if you are using Lion or Mountain Lion.

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Using one charger on another mac won't harm anything.

The fan on my macbook will not turn off

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Thanks

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If no AHT- Boot off your Install Disk while holding down the d key, (not c key), then run the extended Apple Hardware Test. Some disks require you to use the Option key at bootup to select AHT. Some models have a separate AHT CD.

My 2008 macbook will not turn on. the light on the corner is on. not flashing but on. its fully charged and has lion on it. please help! my classes start Monday and i need it before then!!

my 2008 macbook will not turn on. the light on the corner is on. not flashing but on. its fully charged and has lion on it. please help! my classes start Monday and i need it before then!! It will turn on for a coupe seconds, and then turn off.

Take it into an Apple store for evaluation.

MacBook will not turn on at all

Alright, so last night,m my computer was having some keyboard malfunctions. I cleaned under the keys and got it to more or less work. I posted a topic here to fix the remaining issues, turned the computer off for the night and went to sleep, hoping to in the morning have a solution of some sort.
Instead, now I have more serious issues. The computer won't turn on. The magsafe light turns on and the battery lights up, but the computer doesn't respond at all, no sounds from inside, nothing lights up, it's just dead. I'm at a loss as to what to do with it. Any ideas? It's well out of warranty.
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Start with this: Troubleshooting a MacBook, MacBook Air or MacBook Pro that won't turn on.

When downloading application updates, which are over a GB, my MacBook Air keeps logging me out and I have to start the download over. I have the power settings set to never turn off, and the display set to never go to screen saver.

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I have the exact same problem/situation since a few days
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Any progress Voratima??
Software Mac OS X Lion 10.7.5 (11G63)

My Macbook will not turn on ... display turns on and the dial spins but desktop does not pop up

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