My iMac won't turn on, even though it turned on at the store...

I have a 24" iMac (white), that I bought around 2008. I haven't had any issues with it until recently. It's been really finnicky. At times it would just not turn on, and after waiting patiently for a day or so, it would then turn on. Being too busy to take it in, I ignored the issue. This was a few months ago.
I recently moved, and I tried to turn it on and it wouldn't. I ignored it for a week and it still wouldn't turn on. I had my brother take it in to see what was wrong and it apparently turned on at the store. I was told that there was nothing actually damaged and it's probably due to me leaving it on sleep mode for extended periods of time and that if it happens again to just leave it unplugged for 24hrs and then try again.
A week later, my brother brought it back and I had it set back up and yet, IT STILL WON'T TURN ON.
It hasn't left the box since it left the Apple store.
I know nothing is wrong with the outlet, because I've plugged other things into it without issue.
Any ideas?

Reset the SMC:
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
If that doesn't do anything, you can reset the PRAM, however, that really shouldn't affect power on:
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

Similar Messages

My iMac won't go online Even though the network Sign are on?

I was online earlier today, but noe i can't Get it online. But my network says Its on. What do i do?

Do you have any anti-virus software installed - Sophos or Avast, perhaps?

The iMac won't turn on, only the fan blows loudly. What's wrong with it?

Yesterday, I could get into the iMac but after a few minutes of surfing on the Firebox browser, the screen split and the top half was blinking and flashing different colours. I fixed it by re-booting the computer, however it happened again and re-booting didn't work, it just turned off. Today, I can't get the computer to turn on. I would hold the power button and the fan would start up, however, the computer continues to show a blank screen. I click on the keys and get a sound with each keystroke. My guess is that the monitor is just shot.?? Am I right?

Reset the SMC Intel-based Macs: Resetting the System Management Controller (SMC) - Apple Support and NVRAM How to Reset NVRAM on your Mac - Apple Support and try a Safe Boot OS X: What is Safe Boot, Safe Mode? - Apple Support

IMac won't turn on and fans come on right when plugged in

An iMac I have won't turn on but the fan runs. I don't even have to turn it on, I just plug it in and they go on. When I press the power button nothing, but the fan still runs. I have to unplug it to stop them.
Does anybody know anything I can try to see if I can get it working again?
Thanks.

You may be able to see if the situation changes somewhat by trying a
reset of the power management unit, via a button hidden in a location
beneath the iMac (G4) base plate. See info in the following page links:
• Resetting the iMac (Flat Panel - G4) Power Management Unit (PMU)
http://support.apple.com/kb/HT1712
• How to reset PRAM and NVRAM:
http://docs.info.apple.com/article.html?artnum=2238
Before attempting to perform either reset, read through each of the
pages to see what they have in mind; could be a PRAM reset may
do OK. Or both may lead one to consider entirely different actions.
If PMU button is held too long an otherwise healthy PRAM battery may
have a shortened life; or a weak old battery may already be dead. The
battery (a 1/2AA 3.6V Lithium cell) keeps the system settings current.
There is a possibility the unit may have some other hardware issues, too.
Troubleshooting one of these without an official service manual or trained
iMac G4 technician (is there an antique iMac doctor in the house?) can be
a tedious process; as the official tech manual will refer to replacement of
original parts with known-good official ones, as part of an extensive repair.
After the PMU is reset, perhaps it may boot up; or may boot from an install
DVD or CD. An original Apple Hardware Test for the computer may be of
some help in general diagnosis; but even bad hard drives can pass, at times.
Is there any other indication of the computer trying to run, other than Fan?
That's hard enough to hear much else inside the case, with the fan running.
(There is only the single fan in the top of the housing; to pull air up/out.)
Which specific iMac G4 build version do you have? (700/800/1.0 or 1.25)
There is an iMac take-apart page, if you decide to go into it for the duration.
• iMac G4 Take-apart for Optical drive, Hard Disk drive, & Ram upgrades:
http://www.xlr8yourmac.com/systems/imacg4/imacg4takeapart.html
Hopefully it will arise and do more than just push room air...
Good luck & happy computing!

I just bought a new pc and My laptop can connect to it but my airport utility won't recognize it. Even though it does connect to the internet about every 15 minutes the internet shuts off.

I just bought a new pc and for our internet connection we have an airport express. My laptop can connect to it but my airport utility won't recognize it. Even though it does connect to the internet about every 15 minutes the internet shuts off. What should I do?

If you've not yet tried, unpower the AppleTV for a minute or so and restart - this occasionally corrects issues.
If not and the software update seems to have caused an issue, go to the Settings menu and choose to Restore it (this will erase all settings) to reapply current firmware.
Alternatively try to do so via iTunes:
If you see the "Connect to iTunes" screen on your Apple TV - Apple Support

24" imac won't turn on

I was on the computer browsing the net, all of a sudden it turned off. I tried rebooting but it still won't turn on, only the light stays on. help

Sounds like a power shortage, where you aren't supplying enough power to power the iMac.
Try turning off some things and retry.
Maybe it's a bad power cable connector. If you narrow it down to this, contact an Apple Genius.
-benny

I just used stellar phoenix mac data recovery and it seemed to work but now my files won't open. Even though they are "jpeg, mov" files the error message is could not be opened. The movie's file format isn't recognized. " Any help or are they corrupted

I just used stellar phoenix mac data recovery and it seemed to work but now my files won't open. Even though they are "jpeg, mov" files, the error message is "could not be opened". The movie's file format isn't recognized. " Any help or are they corrupted?

Sounds to me like the file is probably corrupt. If you had hard drive corruption or damage, that could easily result in recovered files not being fully intact. If you were trying to recover accidentally deleted files, it's possible they might have been partially overwritten before recovering. There are never any guarantees with file recovery.
Without more information on the circumstances that led you to try recovery, it's hard to give advice on what to try from here. You could always try another file recovery tool, like Data Rescue 3. Just be sure you're taking appropriate precautions when doing recovery. See Recovering deleted files.

Imac won't turn on after anti virus software downloaded

The Avast antivirus software was downloaded onto my imac and now my imac won't turn on. What should I do?

Troubleshooting: My computer won't turn on
Read and follow all the steps.
If you find yourself at Step 6 determine if you can start the Mac in "Safe Mode":
Safe Mode or "Safe Boot" is a troubleshooting mode that bypasses all third party system extensions and loads only required system components. Read about it: Starting up in Safe Mode
You must disable FileVault before you can start your Mac in Safe Mode.
Starting your Mac in Safe Mode will take longer than usual, graphics will not render smoothly, audio is disabled on some Macs, and some programs (iTunes for example) may not work at all.
Merely starting your Mac in Safe Mode is not intended to resolve the problem, it's to observe its performance without certain additional components.
To end Safe Mode restart your Mac normally. Shutdown will take longer as well.
Remove the Avast garbage by using its uninstaller. Never install it, or anything like it, ever again.

Imac won't turn on and gives me 3 beeps

Ok - I am completely clueless here. My father's iMac - left overnight in sleep mode - won't turn back on. I held down the power button and waiting for over a minute, then turned it back on. It gave me 3 loud beeps and won't turn back on - the power button light flashes green and yellow. Anyone have any ideas what is going on and if this is fixable? HIs computer is an iMac G3 333mhz (I think)
Odd things that have been happening the past month or so: Safari browser gone out of whack - graphic / text loading funny - Switched to Firefox. MAIL started yesterday acting weird. Usually left open, but with the window closed - was unable to open window. When I selected new message window I would get a new window the folders wouldn't show, nor would the toolbox on top. Had to go to the menues and have them show. But then I closed this window, another window, without these feature would appear and I would not be able to close it at all. Finally had to delete the preferences and add the email accounts info again for it to work again properly.
I have no idea if this was telling me that something was starting to be wrong with the computer. I just took it that my father did something he wasn't suppose to do (He is really computer illiterate and can only do basic stuff on the computer when he's alone)
I hope he hasn't lost his computer completely - I don't want him having to use MINE (for the reasons above!)
Any help would be greatly appreciated!
Rebecca

It may be marginal or defective memory that's causing the problem. This Forum is dedicated to the older CRT-screen iMacs, so I'd suggest that you post a new topic describing the problem in this Intel processor-based iMac Forum.

IMac won't turn on. Only a clicking sound and a grey folder with flashing question mark.

iMac won't turn on. Only a clicking sound and a grey folder with flashing question mark.
Help.

Your iMac is actually turning ON as proven by the grey folder with the flashing question mark.
The flashing question mark indicates that your system is unable to find a bootable volume. The clicking sound that you hear is probably coming from your hard drive while it tries to recalibrate. I suspect your hard drive has failed.
What model imac do you have? If it's under warranty I suggest taking it in for service. Hopefully you've been maintaining a regular backup of your data as all users should. I lost my data once and it was a valuable lesson. I back up regularily now.
If your iMac came with install disks then you can boot from them, choose your language when asked, then pull down the Utilities menu to launch the Disk Utility application. The Disk Utility application will allow you to verify whether your hard drive has an issue. Usually a clicking sound, assuming it's coming from the hard drive, is a sign of a bad hard drive.
If your system has Lion installed then you can hold down the Command and R keys when you restart the system, then launch the Disk Utility application from the menu that appears.

My imac won't turn on a1311 intel core i3 late 2010

Hey, today after a power off my iMac won't turn on, I've tried reseting it plugging it and holding the power button but nothing happens, im really worried, i have to finish an edition and have al native videos there... HELP!

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.

My new imac won't operate youtube even after installing the latest flash

my new imac won't operate youtube even after installing the latest flash

Problem solved!
I had downloaded and then installed Flash, and restarted.
The problem? I was expecting Youtube to work as on my old PC, where you get a little pop-up menu at the bottom of the TV screen to play. pause etc. That won't happen on a Mac until you click on the oblong that says Flash in the middle - I didn't know that!
Hooray!

Won't turn on past the startup sound

Hello,
I'm a student studying abroad right now in Senegal, part of Sub-saharan Africa (which might help for later on).
My iBook won't turn on past the startup apple noise (the daaaaauummm). When I press the power button it makes that noise, along with a minimal amount of internal processor noise, and then nothing past that. The internal noise basically stops, and nothing comes up on the monitor. This problem started yesterday--I was using my computer and then the screen started to go fuzzy and get static and then it just went blank. Although I said that I don't get anything past the startup noise, I think my computer is still on (even though it isn't doing anything) because if I want to get the startup noise again I have to force shutdown the computer (hold down the power button for 10 seconds). Furthermore, when I do get the startup noise, the lighted ring around where the power adapter plugs in goes from orange to yellow and stays yellow for a bit. However, no light illuminates around the power button on the computer.
At first I thought maybe there was a problem with my monitor. I followed two of Apple's troubleshooting steps, resetting my parameter RAM (I think holding control command P and R) as well as resetting my computer's PMU (shift control option and power button) and for both of those, I managed to actually get something on my screen--the apple with the gear around it popped up and stayed there, but then after about 3 seconds it got the same staticky and lines and then went black again. When I tried to replicate this by doing the exact same thing (for both solutions) I was not able to get past the startup sound (ie the screen stayed blank) and it was back to square one.
Basically, I'm stumped. There are power cuts here in Senegal, along with subsequent power surges when the power comes back on, which lead my Dad to think that maybe my motherboard got fried. However, there is a power adapter on the cord which should block against that. Furthermore, that won't explain why the laptop was working right before it fritzed out on me, even though it was not plugged in. I'm thinking that maybe there might be a bug in my computer (like a physical one that crawled in). I am thinking this because there are bugs that crawl around my computer and under my keys (it's not as gross as it sounds--well actually I guess it is...) and furthermore I was out of town this past weekend so my computer was sitting idly in my room. Could it be that a bug actually made it deeper into my computer? But also, that still wouldn't explain why I was able to make it work on Monday.
I will be here in Senegal for 3 more weeks, but I would like to use my computer before then. Is there anything I can try to fix myself here, or will I have to wait until I get back to the states. Is there anyway for me to al least get some of the stuff off of my harddrive--that's all I really care about? Obviously, there isn't an apple store here in Dakar, Senegal, for me to take it to--although there are a few computer places but it seems like Apples aren't too popular here, and so I'm not sure how effective/knowledgeable they'd be with a Mac. Plus I'd have to explain all of this in French, which wouldn't necessarily be the easiest thing.
Thank you sooo much,
Chris
And for my operating system, I'm not sure if I clicked the right one, but I know I'm on one of the newer ones (not the newest though)
iBook 12" Mac OS X (10.4.3) bought in 2002
iBook 12" Mac OS X (10.4.3) bought in 2002

Hi, Chris. Welcome to Apple Discussions.
It sounds like you may be having logic board problems. Enough Dual USB G3 iBooks suffered from this problem that Apple began the iBook Logic Board Repair Extension Program in January of 2004. Check out the FAQ page and if the symptoms look familiar, give Apple a call.
Since it is past the three-year time limit, try calling and ask for Customer Relations (NOT Customer Service--they can't help you) and ask them to please make an exception to the three-year limit in your case.
You may want to consider trying the shim fix suggested by John Sawyer elsewhere here in the Displays Forum:
[Y]ou can often fix this yourself by removing the iBook's bottom housing, and placing a shim of any sort, about 1mm to 1.5mm thick, onto the raised square on the bottom shield. I use a Scotch mounting square--you can get them in hardware stores and many grocery stores. When you reinstall the bottom case, it will press against this shim, which will press against the graphics chip, and may allow the chip to come into better contact with the logic board.
John Sawyer
CJS Macintosh Repair
Instructions for removing the lower case:
http://www.ifixit.com/Guide/50.5.0.html
Once you get it fixed, try never to pick it up by the left front corner alone. Rumor has it that can contribute to logic board failure when the case flexes, causing the graphics chip to come loose from the logic board. If you're picking it up in your left hand (as I often do mine), pick it up in the center under the trackpad.
Good luck. Let us know how things go.

I changed my Apple ID two weeks ago and I Accidently forgot to sign out of my iCloud on my iPhone 5C. now it wont let me change the iCloud ID to match my new Apple ID. How do I change my iCloud ID even though it is asking for the old ID?

I changed my Apple ID two weeks ago and I accidently forgot to sign out of my iCloud on my iPhone 5C. Now it wont let me change the iCloud ID to match my new Apple ID. How do I change my iCloud ID even though it is asking for the old ID?

If the old ID is an earlier version of your current ID, temporarily recreate the old ID by going to https://appleid.apple.com, click Manage my Apple ID and sign in with your current iCloud ID. Click edit next to the primary email account, change it back to your old email address and save the change. Then edit the name of the account to change it back to your old email address. You can now use your current password to turn off Find My iPhone, even though it prompts you for the password for your old account ID. Then save any photo stream photos that you wish to keep to your camera roll. When finished go to Settings>iCloud, tap Delete Account and choose Delete from My iPhone when prompted (your iCloud data will still be in iCloud). Next, go back to https://appleid.apple.com and change your primary email address and iCloud ID name back to the way it was. Now you can go to Settings>iCloud and sign in with your current iCloud ID and password.

For some reason my Firefox is no longer allowing me to stay logged on to certain sites e.g. Even though I now allows click the keep the keep me logged in on facebook I now have to log on each time. How do I fix this. Kind regards Bev Greene

For some reason my Firefox is no longer allowing me to stay logged on to certain sites e.g. Even though I now allows click the keep the keep me logged in on facebook I now have to log on each time. How do I fix this.
Kind regards
Bev Greene

Websites remembering you and automatically log you in is stored in a cookie.
* Create an allow cookie exception (Tools > Options > Privacy > Cookies: Exceptions) to keep such a cookie, especially for secure websites and if cookies expire when Firefox is closed.
Make sure that you do not run Firefox in Private Browsing mode.
* https://support.mozilla.com/kb/Private+Browsing
* In [[Private Browsing]] mode all cookies are session cookies that expire if that session is ended, so websites won't remember you.
* Do not use [[Clear Recent History]] to clear the "Cookies" and the "Site Preferences"
Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.
* http://kb.mozillazine.org/Cookies

My iMac won't turn on, even though it turned on at the store...

Similar Messages

Maybe you are looking for