Help!!! my mac wont turn on......

I have an imac that's like 5 years old and just recently it started running slower and slower and then one day it froze up so I tried to reboot it and now it won't turn on :( i turn it on and it goes to the grey screen with the apple but stays on it unusually long, like 10 mins. Then it switches to a blue screen where it stays on for like a min, which after that it just goes blank. It appears my mac is still on but there's no display or anything. Is there anything I can do?

How much free disk space is on that boot drive? You should leave about 20GB to 25GB free for the OS.
As a first step boot from your installer dvd and run Disk Utility from there to repair/verify your boot drive (not repair permissions).

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PLEASE HELP! MAC WONT TURN ON!!!!

My fellow mac users, I am hoping that ya'lls wisdom can solve this problem I just encountered a few days ago. I have a White Macbook 13inch and have had it since 2008. I just recently upgraded everything. New 320gb hard drive, 2gb RAM, Snow Leopard, and iLife 2011. I have been using it all for a month now and everything is running beautifully.
Last week, I turned my computer off, as usual for the night and when I woke, the computer would not turn on with the power button. I opened up the computer and dusted it and still nothing. I ordered a replacement keyboard from ebay and plugged it in and low-and-behold, It turned on. I wanted to make sure that the original keyboard was broken so I plugged that one in and it worked as well. Including the power button.
Now I just tried to plug the new one in and it doesn't work at all. But the original does. I am worried if I turn off the computer again, I won't be able to get the mac back on. If anyone has ANY suggestions, they would be most appreciated. I don't want to take it to Apple because I know they will charge me $400 for this computer and I clearly don't have that. Any advice would be most gracious!
Thank You!

Did your replacement regimen include a new battery? Have you ever calibrated the battery? : http://docs.info.apple.com/article.html?path=Mac/10.6/en/9036.html
Reset the SMC? : http://support.apple.com/kb/HT3964?viewlocale=en_US
Does it start normally when the battery is removed entirely?
Does the Magsafe adapter still show a green light when connected and fully charged?
To check the number of cycles and 'health' of your battery, click on Apple in the menu bar, About This Mac, More Info, and Power. 'Average' lifespan of the standard battery is considered to be about 300 cycles, and a removable MacBook battery typically registers at least 4800-5000 mAh fully charged when brand new.
Last possibility that comes to mind is that you're wearing out the power switch if you indeed turn it off every night. In my experience, OS X is stable enough that I often leave mine run for weeks without a restart. I just close the lid when I'm not using it.
Message was edited by: kostby

My mac wont turn on. It is charging and the on light is on when the computer is shut but once I open it the light turns off and the screen is black. I turn it off and then on again and the start up noise goes but it is still black - Help!?

My mac wont turn on. It is charging and the on light is on when the computer is shut but once I open it the light turns off and the screen is black. I turn it off and then on again and the start up noise goes but it is still black - Help!?

Claire, please post your machine specs as requested. There are some variants of the MBP with specific hardware issues. Example: the older "silver key" MBPs with 2.2Ghz and faster processors can have a defective video chipset that produces a black screen or distorted video. That problem is covered under an Apple program that will fix this at no cost to you if you computer is that model.
Do "About this Mac" from your Apple menu and, in the resulting window, click the "More Info..." button. That launches System Profiler for you. The first screen looks like this:
The second line, "Model Identifier" (or "Machine Model" if you are running OS10.4) precisely identifies your MBP variant. Post that, and include it in your equipment info in your profile for future posts. That means people don't have to ask, and you get faster help that is targeted to your specific model. Saves everybody a bunch of keystrokes and you get better advice.

Hi, a dvd got stuck in my mac mini and after looking at solutions online and attempting some not only has the dvd not ejected but my mac wont turn on properly, there is simply a white blank screen, can anyone help me please? thanks

Hi, a dvd got stuck in my mac mini and after looking at solutions online and attempting some not only has the dvd not ejected but my mac wont turn on properly, there is simply a white blank screen, can anyone help me please? thanks

Hi Claire, sounds dire, but some things to try...
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
http://support.apple.com/kb/HT3964

Plz help my iPad wont turn

Plz help my iPad wont turn on I pressed the home and power button and the screen just turn into a glitch plz 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. http://support.apple.com/kb/ht1430
Frozen or unresponsive iPad
Resolve these most common issues:
    •    Display remains black or blank
    •    Touch screen not responding
    •    Application unexpectedly closes or freezes
http://www.apple.com/support/ipad/assistant/ipad/
iPad Frozen, not responding, how to fix
http://appletoolbox.com/2012/07/ipad-frozen-not-responding-how-to-fix/
iPad Frozen? How to Force Quit an App, Reset or Restart Your iPad
http://ipadacademy.com/2010/11/ipad-frozen-how-to-force-quit-an-app-reset-or-res tart-your-ipad
Black or Blank Screen on iPad or iPhone
http://appletoolbox.com/2012/10/black-or-blank-screen-on-ipad-or-iphone/
What to Do When Your iPad Won't Turn On
http://ipad.about.com/od/iPad_Troubleshooting/ss/What-To-Do-When-Your-Ipad-Wo-No t-Turn-On.htm
iOS: Not responding or does not turn on
http://support.apple.com/kb/TS3281
iPad: Basic troubleshooting
http://support.apple.com/kb/TS3274
 Cheers, Tom

Help mine macbook wont turn on

can some one help me because every time i touch the button to turn it on. the light just blink it wont turn on its just stay off

Do you hear any beeps or does the light flash in a sequence of 1, 2, 3 or four flashes with a five second pause between flashes? If so check this Apple article https://support.apple.com/kb/HT1547

Please help, my ipod wont turn on some1 help

heii every1 my ipod wont turn on heres wat happend,
I got the ipod on christmas and transfed over 500 songs and photos. (by the way its the new 30GBvideo) and it was working fine, then my uncle got me the iBlast and it worked good, then i went 2 my friends house and i was raining, it gota lil wet but it was fine. i got 2 my friends house and it froze then i reset it and now it wont turn on, i left it on overnight and it been like a day and i wont turn on its so kool and i want it 2 work somebody please help me
Thanx, Mike West
eMachines 3882 1GBRAM, 80GB HD Windows XP DVD+/-R/RW, USB 2.0 and 2.80GHz

Welcome to the discussions.
iPod Won't Turn On
JC

Help, my ipad wont turn off and the screen is blank with the circle that goes around and around. Should i let the battery die? Was I hacked?

Help! My ipad wont turn off and wont open a screen. Just blank with the circle going round and around. was I hacked? Should I let the battery die? I am lame at this stuff.

Have you tried holding down the power and the home buttons until the slider bar shows up to shut down the iPad?

I need help, My ipod wont turn on, and the home button doesnt work, what do i do?

My ipod just shut off and wont turn on, i need help, but my home button is broken. can anyone help

Try:
Turn on without Home/Power Button

Help nokia n8 wont turn on

wont turn on and freezing and when your holding it up right then turn it screen wont move

I had a problem with the N8 from the first day I bought it, it just switches off and then ON with a blank white screen.
and recently when it does that It's difficult to switch it on again. I press the power button for about 8s and it vibrates three times, but when I switch it on again it shows the white screen. I've been trying to switch the phone on for about 30 minutes and its irritating. I really wish I could change this phone. It has also become really slow with all the games i've installed. I am not impressed at all.

***HELP*** My nano wont turn on!

i pluged my nano into another pc 2 charge it up it didnt turn on or say its charging like it normally does i felt it get really hot so i i pluged it out now it wont turn on at all...........Is my nano dead?

See this: My iPod won't turn on.
If your nano gets hot, then it's an issue that requires service.
You can arrange online service here.
Service request.
Or if an Apple store is near you, take it there and have them check your iPod.

Help my ipad wont turn on

my ipad screen wont turn on but it is charged but it just goes to a blue screen wen i press the middle butto

First try a Reset ( No Data will be Lost )
Press and hold the Sleep/Wake button and the Home button at the same time for at least Ten seconds... (But can take Longer)... until the Apple logo appears. Release the Buttons
If no joy... Try a Restore...
1: Connect the device to Your computer and open iTunes.
2: If the device appears in iTunes, select and click Restore on the Summary pane.
Restoring > http://support.apple.com/kb/HT1414
Make sure you have the Latest Version of iTunes (v11) Installed on your computer
iTunes free download from www.itunes.com/download

Mac wont turn on HELP me

HELP today i was using my macbook air at school and when i came home and tired to turn it on it wouldn't so i tried puting the power cord in it was green but above f4 to f6 started heatng up +the memory is full is the memory the problem? and how do i fix it + it has had the screen replaced in 5/2/2013 and the computer stopped turning on on the 8/8/2013

Troubleshooting: My computer won't turn on
Memory or hard drive space?
When you can get the Mac to boot, click About This Mac from the Apple () menu then click More Info then select Storage.
Make sure there's at least 15% available disk space.
And Troubleshooting the MagSafe adapter

Help! my mac wont turn on or charge. the charger light is a dim green (ive used several different chargers) what should I do?

My mac was working and charging fine yesterday. I woke up this morning and it would not turn on or charge. When I plug in any charger the charge light is a faint dim green. I dont know what to do.

Keep it plugged in for couple of hours.
You may have to take the computer to the Apple store to have it checked.
Best.

Help! iphone wont turn on...

ive had my iphone for about 6 months and now it just randomly turns off and will not turn back on. ive tried plugging it into my computer and a regular wall-adapter charger. nothing works. i cant get to a mac store because the closest one is about an hour and a half away and i cant find the time to go to the store.
i really need help if anyone has ideas please tell me!!

I'm having a similar issue. My battery was low so I went to charge it on my comp and the comp is not reading it nor is iTunes coming up. A pop up says that the usb connection has malfunctioned. I thought it was my cord, but i used it with my iPod and it works just fine. I tried another usb cord and the same thing happens. I dont know what to do!! My phone is completely dead now and while the apple store is only 15 min from me, it is closed! Any help?

Help!!! my mac wont turn on......

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