My 24" iMac won't boot, what am I doing wrong?

It starts and goes to a small window in multiple languages that says I must restart my computer. Tried to start in safe mode by holding down the shift key but wouldn't come up in safe mode. Second tried taking memory stick out and putting back in but still same thing. Next tried disconnecting power cord for 30 seconds then holding in power button for 10 seconds until I heard a beep and still the same message comes up.
Please help I have a lot of stuff on this computer!
Thanks

Is this yours:
http://www.everymac.com/systems/apple/imac/stats/imac-core-2-duo-2.4-24-inch-alu minum-specs.html
If that's the one, it only came with 1 GB standard. It can have up to 4 GB (officially supported by Apple), while some have put in 6 GB and it worked. In any case, unless you paid extra to get 4 GB, the standard configuration only came with 1 GB... in which case you have only one module. If that goes bad and you don't happen to have another module lying around (who does...) to test it, you can run the Apple Hardware Test from your install disk (run the extended mode) - here is how:
http://support.apple.com/kb/HT1509
For now, I'd bet it's the RAM... you could seize the opportunity and get new (and more) RAM; it's quite inexpensive at the moment - check macsales.com.
http://eshop.macsales.com/shop/apple/memory/iMac/IntelCore_2Duo

Similar Messages

I am trying to add event on my iPad ios7 from email and it won't add what am I doing wrong?

I am trying to add event from a email to my calendar on my iPad ios7 and it doesn't work. What am I doing wrong.

You could use icloud to sync contacts and calendars.
Both the ipad and iphone are intended to sync to a computer.
You can redownload apps from the app store, assuming that they are iphone compatible.
Downloading past purchases from the iTunes Store, App Store, and ...

Sometimes my photos upload to sites likeFB or Kijiji and sometimes they won't? What am I doing wrong?

My MAC OS X Lion vesrion 10.7.5 will upload photos from iPhoto to sites like Facebook or kijiji or photo editing sites and sometimes it just won't? WHat can I do to fix this problem? Very inconsistent?
Thanks so much

No, that would not be the problem. Lightroom can manage images on any hard drive that is connected to your computer. In all probability your monitor is set so that it is too saturated and too bright. Your monitor probably needs to be calibrated. The best way to do that is to use a hardware calibration device. I have adjusted my monitor using the Windows tools and the adjustments on my monitor. The real "pros" will tell you that is not a good way to do it. And I know that. But it has worked for me. I adjusted my monitor until the monitor looked like one of the images or prints. And then adjusted accordingly in Lightroom.

IMac won't boot; what to try?

I bought my wife an Intel iMac about a month ago to woo her from Windows.
Yesterday, a lightning bolt blew a hole in the roof of our house, and her computer will not boot up anymore.
If I press the "On" switch on the back, only the white light (at the bottom right of the main screen) will light. No other signs of life (no chime, no display).
The lightning bolt destroyed our DSL modem and router. Except for a Mac Mini (which only had its network interface destroyed), all items on the network directly attached to the router was destroyed (hubs, switches, Airport Base Station). Anything beyond the hubs/switches survived.
Any advise, insights, suggestions, etc. will be appreciated.
I will also appreciate advice on where to send the computer to for repair.
I understand that not even Mac can withstand the power of a thunderbolt, but I want to resolve this as fast and smooth as possible.
Thank you!
Power Mac G5 Dual 1.8GHz Mac OS X (10.4.7) 2GB RAM, Barracuda HD
Power Mac G5 Dual 1.8GHz Mac OS X (10.4.7) 2GB RAM, Barracuda HD

Hopefully everything on your home network was covered on your homeowners/renters insurance policy. I would contact the claims department ASAP. Do what they recommend whether they want to try repairs or just writing everything off. Apple, of course, would recommend an Apple Certified Service Provider for repairs. Most stores that sell Apple computers can usually provide or recommend such service.
Contacting Apple Support and Service - This page has an Apple Authorized Service Provider locator on the right side of the page.

Timer won't release - What am I doing wrong?

Hi,
I am farely new to C#, but not new to programming. I try to develop a class that need a timer to update a file. The problem I have is that when the class is release (like a local variable is destroyed when we exit the method), the timer
is still in function updating the file. Here is a sample class I wrote that will show you what is happening:
First, let me tell you that I tried in VS Community 2013 and in VS 2010 with the same result.
Here is the class:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Timers;
namespace TimerDemo
class MyTimer
// Var
private int countVal;
private string internalId;
private System.Timers.Timer otimer; // Timer
// ==================================
// Property
// ==================================
public string Id
get { return internalId; }
set { internalId = value; }
// ==================================
// Constructor
// ==================================
public MyTimer()
countVal = 0;
internalId = RandomId(8);
otimer = new System.Timers.Timer();
// 2 seconds timer
otimer.Interval = 2 * 1000;
otimer.AutoReset = true;
otimer.Elapsed += new ElapsedEventHandler(timer_Elapsed); // set timer event handler
otimer.Start();
// ==================================
// Timer EVENT
// ==================================
private void timer_Elapsed(object sender, ElapsedEventArgs e)
countVal++;
// Write to the log
System.IO.StreamWriter oWriter;
oWriter = new System.IO.StreamWriter("timerlog.log", true);
oWriter.WriteLine(DateTime.Now.ToString() + " - Loop # " + countVal + " (Timer #" + internalId + ")");
oWriter.Close();
// ==================================
// Generate random Id
// ==================================
private string RandomId(int size)
StringBuilder builder = new StringBuilder();
Random random = new Random();
char ch;
for (int i = 0; i < size; i++)
ch = Convert.ToChar(Convert.ToInt32(Math.Floor(10 * random.NextDouble() + 48)));
builder.Append(ch);
return builder.ToString();
// ==================================
// Destructor
// ==================================
~MyTimer()
otimer.Stop();
otimer.Enabled = false;
otimer.AutoReset = false;
This class simply creates a timer that will write to a file every 2 seconds. It will write the date and time, the Internal ID and a counter that will increment with each timer loop.
Now, add a button to a form with the following code:
private void button1_Click(object sender, EventArgs e)
MyTimer lclTimer = new MyTimer();
MessageBox.Show("Class ID #" + lclTimer.Id);
This code will create an object from the class then display a message with the class Internal ID. When you press OK on the messagebox, the button1_click method ends and the local lclTimer object should be released. BUT the timer is still writing
to the file. In fact, it will continue until you end the program.
If you press the button again, a new object will be created with a new ID. The new timer will also update the log file. We are now with 2 timers that updates the file. You may press again on the button to create additionnal timers... but
you will eventually get an error when two timers try to write to the file at the same time.
Here is what the file will look like with 3 timers for a few seconds:
2015-02-24 20:41:27 - Loop # 1 (Timer #48263556)
2015-02-24 20:41:29 - Loop # 2 (Timer #48263556)
2015-02-24 20:41:31 - Loop # 3 (Timer #48263556)
2015-02-24 20:41:33 - Loop # 4 (Timer #48263556)
2015-02-24 20:41:34 - Loop # 1 (Timer #86329571)
2015-02-24 20:41:35 - Loop # 5 (Timer #48263556)
2015-02-24 20:41:36 - Loop # 2 (Timer #86329571)
2015-02-24 20:41:36 - Loop # 1 (Timer #80876526)
2015-02-24 20:41:37 - Loop # 6 (Timer #48263556)
2015-02-24 20:41:38 - Loop # 3 (Timer #86329571)
2015-02-24 20:41:38 - Loop # 2 (Timer #80876526)
2015-02-24 20:41:39 - Loop # 7 (Timer #48263556)
2015-02-24 20:41:40 - Loop # 4 (Timer #86329571)
2015-02-24 20:41:40 - Loop # 3 (Timer #80876526)
2015-02-24 20:41:41 - Loop # 8 (Timer #48263556)
So here is my question: What did I miss? How can I make sure the timer is destyoyed when the class is released? It seems that the .Stop() call don't really stop the timer...
Thanks.

Unlike their counterparts in c++, destructors in c# don't get called when an object goes out of scope. Instead, they are called when the Garbage Collector decides to clean up that object if it unused. If an object is attached to a Timer that is still
running, the Garbage Collector will think that it's still in use and won't try to remove it, so the destructor won't be called.
Generally speaking, destructors in c# are fairly useless.
I think you will need to add a Stop method to your MyTimer class and call it explicitly in button1_Click before the object goes out of scope.
I agree with Ante Meridian. However, rather than implementing a Stop() method, it is common convention to implement Dispose(). This function is explicitly called to indicate "I'm finished with this object, so do what you must to release internal resources
now, rather than waiting for the garbage collector. Moreover, Dispose() is automatically called if it is used inside a
using statement, as in the following example:
using (MyTimer timer = new MyTimer)
timer.Start ();
// Do stuff here
timer.Stop ();
} // timer.Dispose() automatically called when leaving scope

Please help - installer won't install, what am I doing wrong?

Your help please! I need to upgrade from Mac OS X 10.4.10 to 11 but my installer just flashes up on the dock and then nothing happens. If I try to do a software update from the 'about this mac' window I just get a spinning wheel of death for hours on end and nothing happens... Can anybody help please? It is driving me up the pole!

Hi brunos mum, and a warm welcome to the forums!
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.
3. Click the First Aid tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then Safe Boot , (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it finishes.

My iMac won't boot....Msg says "NO BOOTABLE DEVICE--INSERT BOOT DISK ...

I don't know how to start my iMac up. I don't even know what a boot disk is! Several days ago I tried to run Boot Camp but couldn't continue because I didn't have a Windows program to install si I'm not sure what happened. Can somebody please help me out? Thanks.
Dman- [email protected]

My iMac won't boot....Msg says "NO BOOTABLE DEVICE--INSERT BOOT DISK ...
Posted: Jan 17, 2011 11:44 AM
I'm getting this message again. When I restart using the option key everything is ok. When the computer goes to sleep it has the above message. Is there a setting I need to turn off so this doesn't happen all the time? Thanks.
Dennis

IMac won't boot after power outage

I got a power outage a couple of hours ago. And now my iMac won't boot. When I power it up, it gets pass the white screen with the apple logo. The screen than turns blue with a spinning cursor. The cursor spins for about 10-15 minutes and stops but the normal login screen never appear and it won't boot into the desktop either. I just got a blue screen.
I have boot into the install Disc1 and did the disk repair and premission repair but it didn't help.
Any idea?
Sidney

Oh man, what a disaster!
I tried to do an Archive and Install but the installation hanged at the end of disc 2 after running an iWeb script (according to the install log) with about one minute left. I have waited for two hours but it just hanged there with all the drives spin down.
To make the problem worse. There was no way to quit the install at that point because all the menu items were disabled. The only way out was to power off. But when I powered it back on, it booted right into install directly asking for the disc 2. If I put the disc in it will install again and hang at the same spot.
Disc 2 contains iLife. I know Apple wanted to make things simple but why can't they give me an option to skip it? After all, iLife was already installed.
I finally got it working by booting from disc 1 and did a clean install. It took me all night to re-download all the updates and reinstall many applications. Fortunately, I have my address book, calendar, and most of my works backed up to .Mac so it wasn't a total lost.
On the bright side. Now my iMac is working better than before. I used to have problem getting auto sleep to work but now it works perfectly. Safari also had problem accessing charts (but Camino was fine) in a few web sites like schwab.com. Now everything works.
Lenn and David. Thanks for all your helps.
Now I am looking for a better backup solution so that the recovery won't be this painful if disaster strikes again. Any suggestions?
Sidney

IMac won't boot at first attempt

Hi
Recently I've been experiencing that my intel iMac won't boot at first attempt and I have to powerdown manually and then try again. Second time it boots just fine. It's usually in the morning (been shut off for the night), but not always. I've tried disc utility from the install dvd, have repaired permissions and reset the nvram and everything seems just fine. The thing is, this has happened after the 10.4.8 update as far as I can remember. Does anyone else see this or is it a coincidence and some other problem?
Any thoughts would be appreciated.
Best regards
Rico
intel iMac 20" Mac OS X (10.4.8)
intel iMac 20" Mac OS X (10.4.8)

Oups, sorry about that wrong quote - I've been reading to many discussions lately
I've done all sorts of things today and I'm kind of curious to what is going to happen tomorrow morning when I boot up the mac. To sum up, here's what I've been doing:
Installed 10.4.8 manually, downloaded from: http://www.apple.com/support/downloads/macosx1048updateintel.html Read somewhere that the stand alone installer might help.
I ran repair permissions right after and got this:
Permissions differ on ./usr/standalone/i386/boot.efi, should be -r-xr-xr-x , they are -r--r--r--
Owner and group corrected on ./usr/standalone/i386/boot.efi
Permissions corrected on ./usr/standalone/i386/boot.efi
The privileges have been verified or repaired on the selected volume
Ran repair permissions again to check - all was good
Enabled automatically login in the accounts menu in user prefs - someone suggested me to do this, but I'm not sure what that might do, but hey, I'll give it all a shot.
Changed resolution and then back again to highest possible. Apple suggests this when the problem occurs on the 17" iMac.
http://docs.info.apple.com/article.html?artnum=303870
Unplugged power cord for 30 secs and reset smu (G5 article/idea though)
http://docs.info.apple.com/article.html?artnum=301733
Used Onyx to delete the content of library > caches which I read somewhere could perhaps help.
I'll post again tomorrow morning, and hopefully with some positive news

IMac won't boot after power failure during 10.5.6 update

Help!
Tried to update last night and at something like 80% install, we had a power cut. iMac won't boot at all now - get to a grey screen which tells me to restart. Don't have a wired keyboard. If I did - what are the steps to get this working again.
I believe I have a good backup, but don't want to risk as all the family photos are on the iMac.
Thanks in advance.

Thanks for the help, but can't even get to a screen where I could type anything! I know I'm being dumb here.

My iMac won't boot. I only get a white screen. Won't open in safe mode or recovery mode. Any suggestions?

Hey, any help? My 24" iMac won't boot. I only get a white screen when turning on. It won't open in safe or recovery mode. Any suggestions?

If you can't boot from your installer DVD, then take it in for service.

IMac won't boot to OS 9, boots Panther fine

Bought an iMac G3/500/128MB/CD-RW off Ebay for super cheap (this is the Indigo 500 with 64MB base RAM). Loaded OS 10.3.3 with no probs, tested it out with no probs. (I know the 128MB RAM is less than recommended/required for Panther, the machine was supposed to have 256MB and the seller is sending that to me). Next step was to load OS 9.1 from the CD. The iMac won't boot from the OS 9.1 CD (It boots fine from the Panther CD). Also tried booting from a firewire CD drive, same result. The result is a folder with a question mark, then a folder with a smily face, repeated twice before it aborts the OS 9 boot and goes into Panther.
Repaired permissions, no luck, wiped Panther off the drive and tried booting to OS 9 with blank drive, and still no luck.
As stated above, the machine was supposed to have 256MB RAM, and it also has a 20GB HD when it was supposed to have a 30GB HD. I declined a new HD as the seller offered me $20 as an option (bringing the total shipped down to $69.00), but now I'm wondering if I should replace the HD with the 30GB he offered? I don't think it's an HD issue though and replacing it looks like more trouble than it's worth.
I'm not too bummed if I have to stick to Panther, I just have a few OS 9 apps that I'd like to have access to.
iMac G3/500/128/CD-RW Mac OS X (10.3.3)

Does the CD drive boot from the Panther installation disk? I'm wondering if the CD drive is faulty, and it's not a Mac OS 9 specific issue.
Also, in combination with that problem, the hard drive may have been partitioned without the Mac OS 9 drivers. If you haven't tried already, use Disk Utility to partition the drive. You can keep it at one partition, but be sure that the "Mac OS 9 Drivers Installed" check box is installed. [NOTE: partitioning will wipe the drive clean.]
Other than that, I don't have a clue...
If you can't boot directly from Mac OS 9, most "classic" apps will run fine under Mac OS X in the "Classic" environment. If that works, it's actually a better way to access to Mac OS 9 programs.

My iMac won't boot past grey screen and it didn't come with a os x disk

My iMac won't boot past grey screen with apple. I've tried booting in safemode but that didn't help and my iMac didn't come with a os x disk.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
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.”
b. 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.
c. 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 either of the techniques in Steps 1b and 1c 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 you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
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, or if a firmware password is set, or if the startup volume is a Fusion Drive or 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 10. 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
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 10
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 11
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 12
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.

27" iMac won't boot from anything BUT the main drive

Hi all,
My lovely 27" iMac is in perfect working condition, but I thought I'd try to install a OS on a large SD card to see if I would gain any speed.
In the process of doing that (cause I never got that far) I discover that the iMac won't boot from the original install DVD. It simply spits out the DVD when I try to insert into the drive. I'v managed to make an image of the DVD (in a different mac) onto the SD card in order to try an boot from that. No luck. I've tried to insert a original install DVD from my Mac Pro into the iMac, which it reads fine and well, and when I tap the restart button it restarts, but stop with a white screen doing boot up.
If I try to hold down the option key during startup, the iMac WILL let me choose which OS to boot from, but if I choose anything else than the OS already installed it freezes.
I've even tried to boot my Mac Pro from the iMac install DVD - no problems.
I've even run a hardware test on the iMac - no problems.
I am running out of options fast! Please help a devoted Mac-friend.
Take care.
Peter

I WAS using the DVD that came with the machine, but I fear Apple may have sent me the wrong one?
In trying to solve the issues I'd tried other OS disc's (A Mac Pro install DVD and a OS X Leopard DVD) - but none of them would even boot, nor install of my iMac. I always end up with a white screen during boot up.
As I described, the original iMac install DVD would indeed boot my Mac Pro, do the disc seems ok?

IMac won't boot up after latest update. Any suggestions?

I just updated my software (the latest from apple), then my iMac won't boot again.

There you go. Your HDD is failing hence its not booting. You need reformat the HDD
To reformat, same steps: Boot to the install disc > get past the language selection > You will see Welcome to Blah Blah Blah > just hit continue > There should be something there called erase and install
BUT
1. if you are absolutely sure that Time machine has BACKED-UP all of your files then proceed above
2. If not, if you have another mac: connect it via firewire then google Target Disk mode. Basically you want to copy all your files from the damaged machine to the new mac to serve as a backup
3. if yo dont have another mac: get an external HDD, install Mac os X on it, boot to it then back up your files
to do this
a) Plug external HDD
b) Boot to the CD restart and hold C
c) Get past language selection and keep hitting continue
d) when it asks you where you want to install Mac os X > select the external HDD
e) once its installed. Restart the computer and hold "Option" key. You should now see your external HDD as one of the boot drives. Select that and you'll boot into it
f) once inside the external HDD OS, you will see the internal HDD(damaged drive)browse/navigate through it and start getting your important files

My 24" iMac won't boot, what am I doing wrong?

Similar Messages

Maybe you are looking for