IMac does not turn on

When I press the start button I only hear a drive sound, no chime and have no video. Apple info was useless.
Thank you in advance.

Exactly which iMac do you have and what " Apple info was useless" are you referring to? Are also still on 10.9.5 as your profile indicates?

Similar Messages

Imac does not turn off.

hello,
I have an imac, running on os x lion. u know how, when you click on shutdown, it shows the white screen. sometimes my imac does not turn off and keep showing it. could you please tell me what i can do to solve this problem.
thanks

The safe boot more or less resets system files.
When it is something in the hardware:
1.do the Pram and the SMC resets:
http://support.apple.com/kb/ht1379
http://support.apple.com/kb/HT3964
2. shutdown the mac and startup while holding the ALT(option) key: choose the Recovery Disk, from the window choose Disk Utility, select the Lion disk, choose "repair disk".
When it is not a hardware problem:
3. List the applications you installed in the last 6 months, also the ones from the Appstore.
4. List the plugins (extensions) you have in Safari.

My imac does not turn off !

My imac does not turn off ! Since i bought the imac ( february ) i had this issue
I have called aplle support and During 2 months nothing changed ! I rebbot, i cleaned the cache i mean this
Is the way apple slove issue. ? My imac does not turn off ! I have to turn it off by myself ! ( hold the power button )
Everytime !
They told me " this is because of the app you are using !" come i have adobe master cs6 and i told them
It was before i install these apps.
I would like some help ! And suggestions. I will return my imac and hope to have the new one because
Since i bought i can not enjoy the Apple product.
Thank you

Have you done the safe boot mentioned above?
Can you click on the apple on the left of the menu bar? Did you try Paul_31's advice to choose force quit to see if there are any applications that are not responding?
I tend to agree that it may be time to take it to an Apple service center for hands-on attention.
Apple normally doesn't replace a machine with a new one unless they have been unable to repair an issues(s) after several tries.

My imac does not turn al the way on the sreen is blank and it beeps

can some one help with my problem with my imac it does not turn on and only beeps

This indicates problem with RAM.
You have to take the computer to the Apple store to have it checked out.
http://support.apple.com/kb/HT5860?viewlocale=en_US
Best.

IMac does not turn back on from sleep mode

Hi all,
I've having a problem sometimes that my iMac won't turn back on after I put it into a sleep mode. This does not happen everytime. After the machine does not turn back on, the only workaround is to unplug the power cable and connect it back. Then I'm able to turn on the iMac. After the machine boots up, and I will get the crash report said that the machine does not turn it off properly.
I tried to reset the SMC before and it did not resolve the problem.
Any idea?

One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

My 27" iMac does not turn back on. No sound, no nothing.

I shut down my MAC and unplugged it. When I plugged it back in, it would not turn on. I was having problems ejecting a disk and my final solution was shutting down completely.

One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

Imac 27" does not turn off

Hi,
I have a brand new iMac 27" all in one, which works perfectly except for the fact that 3 times out of 4 it does not turn off with the normal command and I am obliged to turn it off with the back switch, after it remain for various minutes with the blue window on and the wheel running.
Initially I tried to disconnect an external HDD which was connected by USB and seemed to have solved the problem for a few days, but now the problem shows up again.
At the moment I have connected only a Bamboo device on the USB port.
I have tried to Verify the HDD and repair the disk, but no improvement.
Any suggestion on how to proceed? Thank you
SS

If all the prior steps have not resolved the issue then at this point I would suggest:
Remove any additional memory you may have added to the system
Reinstall of the OS: http://docs.info.apple.com/article.html?path=Mac/10.6/en/8177.html
If the issue persists after you follow the above steps, you may wish to make an appointment with a Mac Genius at an Apple store, contact AppleCare via phone, or contact an Apple Authorized Service Provider for assistance.
If this issue was occurring right out of the box on the brand new system without you adding any additional software / migrating data from an older Mac, be sure to let them know that as well. Its unusual to have a blank, brand new system have this kind of behavior so that will save them some diagnostic steps.
Best of luck to you.

Imac does not detect external vga display

Please help with connecting external vga display to an imac 21.5'', late 2012, OS X 10.8.5 via Mini DisplayPort to VGA adapter.
I have connected an external monitor (Fujitsu Siemens) to the thunderbolt port of the imac using a Mini DisplayPort to VGA adapter. The imac does not detect the external monitor. I have followed all instructions and suggestions I could find at Apple Support Communities without success.
The monitor is in perfectly good working order as it has no problem connecting and performing flawlessly with a dell windows laptop. The imac, connected via the Mini DisplayPort to VGA adapter to the D-Sub connector of a Samsung smart TV, also worked perfectly.
To add insult to injury, occasionally, when restarting the iMac with the external vga display connected and powered on, the iMac screen starts intermittently turning blue for a brief second or so and resuming back to normal. The frequency of 'blueing' is once in 2-3 seconds. This particular rather disturbing problem, luckily ceases when the external display is switched off.
Any advice and help with resolving the above connection problems will be gratefully appreciated.
Thank you
ghogoh

I am having the same issue. Hope Apple can fix this soon!!!

IMac Does not boot past Gray Screen

iMac does not boot past Gray Screen. 2008 24" Intel iMac running Mountain Lion with 1TB hard drive.
Problem started yesterday while I was web surfing, and my iMac frooze and shutdown. I rebooted and could only get as far as the gray screen.
On bootup the following things happen:
Startup tone
Gray screen with Apple, and gear spins below Apple.
Once the gear stops spinning, nothing happends.
Troubleshooting steps I have tried:
removed all devices connected to iMac and rebooted, but same symptons occur.
booted into Safe mode and run disk utilites.
     Disk Utilities found no errors on the drive, but did find two permission issues that it was able to fix.
          First permission issue:
                   "Group differs on library; Should be 0; group is 80"
          Second permission issue:
                    "Permissons differ on library; Should be drwxr-xr-x; They are drwxrwxr-t"
Disk Utilities says it fixes these issues and then I reboot, but get the same problem.
I reboot back into Safe Mode and run Disk Utilities and it discovers the same problems listed above with Permissions. It says it fixes them, I reboot, but the same problem occurs. Its as if we are stuck in some sort of loop process.
Booted into Single User Mode and ran the following command:
     /SBin/fsck -fy   it reports back, Volume Apprears to be ok.
I reboot, same issue !
Performed SMC Reset, Rebooted, same issue
Performed PRAM Reset, Rebooted, same issue.
Booted into Recovery Partitioin (Command R) and ran disk utilities. It found the same permission issues listed above. It fixed them. I rebooted. Same problem still.
While in safe mode, I preformed a full time machine backup.
I am out of ideas. Any help would be greatly appreciated.

Hello,
I reboot back into Safe Mode and run Disk Utilities and it discovers the same problems listed above with Permissions.
You can ignore repeated "fixes" it's not really a problem, if it says completed repairs that's all that's needed.
Luckily it boots in Safe Mode, here's basically the steps to try to find out what it is...
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons
Though I'm suspecting some corruption to your OS at the moment.

IMAC does not boot, only beeps. Video attached

Hello:
I am trying to figure out why an iMAC does not boot properly.
Memory:1GB (only 1 module in one of the 2 available slots).
Everytime I push the power button I only hear a sound and that's it.
You can hear the HDD spinning but the screen is always black.
Please find the sound that the iMAC makes everytime I turn it on:
http://www.youtube.com/watch?v=duRTB3iDZEU
Keboard does not respond so I cannot use things like press a key when turning on the computer, etc.
Mouse light is ok.
I am a newbie with MAC's so excuse me if I'm not doing something right.
Thanks

Hello robertin75
Check the ram, if the module has gone bad, has become dislodged or not fully seated in the slot then the iMac will only beep indicating an error and will not startup.
http://support.apple.com/kb/HT2341
I'm not exactly sure which model iMac you have and so it's hard to give specific instructions, but if you check in the User's Guide that came with it you will find the instructions for replacing and installing ram in your model.
If you no longer have the User's Guide you can find out by using the the following link.
http://support.apple.com/kb/HT1463
or the next one if it happens to be a newer glossy screen aluminum model.
http://support.apple.com/kb/HT1758
Dennis

My iMac does not start.

My iMac does not start. When I turn it on, it stays loading in the half and doesn't continue. Some days before I had updated my iMac to Yosemite 10.10. Everything was ok but yesterday I decided tu reboot it and when it was turning on this happened, it kept stuck at the middle of the bar. I have the latest model of MacBook Air '13.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If a desktop Mac hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

My imac does not start up

My imac does not start up. It shows a white page with apple sign .

Resetting NVRAM / PRAM
Shut down your Mac.
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 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.

IMac does not startup after any update and goes to sleep after a while

my iMac has a few issues anytime i install an update or app that requires a restart and i do restart my imac does not reboot as in it comes on the light comes on for 3 secs then the computer makes a click sound and shuts down again
if i try to put it on again it makes a very loud screaming noise i have disconnected all cables and turned it on again it will come on but the fans will be on full blast for a while.
when it does come on if i watch a movie after 30 mins it goes to sleep claiming overTemp
i have tried the cmdopt+O+PR after the second chord the system does exactly what i described above
its an iMac 17" G5 iSight (1.9GHz with 2.5GB Ram) 80GB free Space
please help

The screaming noise sounds like the HD may be dying.
Regarding your fan issue see Article:
http://docs.info.apple.com/article.html?artnum=301733 iMac G5: How to Reset the SMU (iMac G5, the iMac G5 (Ambient Light Sensor), and the iMac G5 (iSight)).
Also, check to see if your comp qualifies for the G5 iMac Repair Programs
**WARNING: DUE TO SECURITY REASONS, PLEASE DO NOT POST YOUR COMPUTER'S SERIAL NUMBER ON THESE MESSAGE BOARDS.**

IMac does not see my external HD...but my MacBook Air does

I have a Toshiba 1TB HD that I partitioned into iMac and PC. I run my backup on it with no problems. Then I got a Time Capsule and set it up. Now my iMac does not see my HD any more. But my Mac Book Air picks it up. You can see the 2 partitions on the MBA. I also cant see it in my Disk Utilities and "Mount" is not clickable. I tried to use different USB ports as well as different USB cables.

What to do if your computer won't recognize a FireWire or USB device...
If the issue persists, try these steps:
   1. Shut down the computer.
   2. Disconnect all devices and all other cables, except the keyboard and mouse cable(s).
   3. Disconnect the computer from the power outlet and wait for 3 to 5 minutes.
   4. Plug the computer back in and turn it on.
   5. Reconnect the device(s) (one at a time if there is more than one) and test. Test with each port if you have more than one.
http://support.apple.com/kb/HT1317

My iMac does not connect to internet via wireless after I log in. I have to open network preferences and run the assistant everytime to make it work. Its a new system, updated to Mountain Lion,.

My iMac does not connect to internet via wireless after I log in. I have to open network preferences and run the assistant everytime to make it work. Its a new system, updated to Mountain Lion,.

Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.
Also, turn off IPv6:
System Preferences » Network » AirPort » TCP/IP tab » Configure IPv6
Or whatever Interface you use.

IMac does not turn on

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