How to disable startup chimes

Please help.
OSX 10.10
How to disable very loud and bothersome startup chimes.
Thank you.

Ooops...sorry, it doesn't work with the iMac.
Try the Terminal method:
http://www.maketecheasier.com/disable-macs-startup-sound/

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Disabling Startup Chime

Is there a way to disable the startup chime on an iMac running 10.6.3. On my old G5, the chime was not audible when external speakers were connected but the volume was turned off. However, this does not seem to work on the iMac. I am also sure that it works on my MBP when external speakers are connected.

Hi John Hutcheson;
You are aware that the start up chime indicates that the POST (Power On Self Test) completed successfully. So by turning it off you are no longer being provided with that information.
Allan
Message was edited by: Allan Eckert

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Hi everyone,
I'm trying to disable the boot chime in Yosemite. Previously I was able to do this by way of a terminal command (sudo nvram SystemAudioVolume=%80) but this doesn't seem to work in Yosemite.
I know why the boot chime is useful and why I should just mute my speakers before shutting down, but I just want it disabled once and for all.
Besides the use of 3rd party apps, is there any way to disable it?
Thanks for any input.

This worked in Mavericks 10.9.5.
I had this scrapped from someone else's post.
Basically what it does is when you log off, it mutes the volume. On log-on, it un-mutes so your normal volume returns.
-Create scriptfile for muting:
sudo nano /opt/local/bin/mute-on.sh
#!/bin/bash
osascript -e 'set volume with output muted'
-Create scriptfile for unmuting
sudo nano /opt/local/bin/mute-off.sh
#!/bin/bash
osascript -e ‘set volume without output muted’
-Make both files executable:
sudo chmod +x /opt/local/bin/mute-*
-Check if any hooks already exist (these will be overwritten, so make sure it is OK for you)
sudo defaults read com.apple.loginwindow LoginHook
sudo defaults read com.apple.loginwindow LogoutHook
-Add hooks for muting
sudo defaults write com.apple.loginwindow LogoutHook /opt/local/bin/mute-on.sh
sudo defaults write com.apple.loginwindow LoginHook /opt/local/bin/mute-off.sh
–to delete the hooks, use the following:
sudo defaults delete com.apple.loginwindow LoginHook
sudo defaults delete com.apple.loginwindow LogoutHook
-Note that script files must be owned by root.
I wish Apple starts rethinking these unneeded clutters that really annoys new mac users.

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So, i got my macbook pro back from repair @ the apple store. Supposedly, they replaced the logic board.
Now, when booting, I am subjected to a 'startup log' similar to the way a linux machine looks when booting... black&white text, etc. Showing device initialization, etc...
Two questions: is there a way to disable this? Also, is there some sort of 'debug mode' for os/x... because the machine seems a little pokier than before I brought it in? If so, how do I disable it?

is there a way to disable this?
Restart the computer with the Option, Command, P, and R keys held down, and release them upon the second startup chime.
(42839)

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You will find a line item
com.leapmotion.Leap-Motion.plist
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I have a 2008 Mac pro and since upgrading to Mavericks, nothing at all has stopped the startup chime from blaring out of the speakers at every startup. In normal use, it's annoying, during troubleshooting, it is intolerable in our quiet workplace.
None of the 3rd party software solutions for silencing the startup chime work in Mavericks.
The Terminal solution has not worked since Lion, I believe.
Muting the volume before shutdown does not work.
Inserting a headphone plug does not work.
The chime just will not shut up.
I am not interested in the replies whose main message is one of these: "Wow, never heard that one before." ; "What a small problem." ; "The startup chime is an important troubleshooting tool." ; "I don't have that problem / your problem is wrong."
But I would be very grateful for instructions on how to disconnect the speaker physically – preferably without doing any harm to my machine. If there is a software solution that works in Mavericks, I will try it but I am not aware of any.

Thanks, Johnb-one, I ruled out StartNinja because I have tried it before on a couple OS cats but it has never worked for me. I'll try it again just to be sure because they now claim Mavericks-compatibility.
As per my original post, I have already tried the other two suggestions. They have worked in the past up until Mountain Lion. Apple has really ramped up security around the startup chime with Mavericks.
As I understand, the startup chime is a completely separate entity from the OS itself. Some versions of OS X have allowed limited access to its volume but Mavericks removed all that.

How can I turn off the startup chime?

The chime sounds from the internal speakers at full blast no matter what volume I have set the computer to. Is there any way to turn this off or at least quiet it? It keeps waking my baby up, even when she's sleeping upstairs!

Julia,
I have used the System Preference pane that Neil recommended for over a year successfully. It is good to hear the startup chime, even at a much lower volume, because it lets you know that your Mac has passed the built-in Power On Self Test.
I'm sure that mr fish didn't mean for his post to be as condescending as it seems. You know, telling a woman where her mute key is located! He is new here in the Intel discussions and has been having issues fitting in. He recently learned how to color the text of his posts and isn't aware of how childish and distracting they have become. But he is coming along and is a welcome new personality here in Using Your Intel-based iMac.
But, mr. fish aside, the tip he gave you about muting your Mac before turning it off should work! So the fact that you report that it doesn't, leads me to believe that there may be some maintenance issues with your new Mac. I want to give you the link to the X Labs. Dr. Smoke, the author, is a long-time, regular contributor here in the Apple Discussions and he has put together a great site that explains well how to keep a Mac & Mac OS X running in good condition. When you have time you can check it out and see if there are some things that you could be doing that will keep things running smoothly.
Something that will help folks here in the forum when you ask for advice is if you go to your Profile and expand a bit about your Mac; model, OS X version, amount of RAM, etc.

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Diagnosed it, and it said that the Local Area Connection had no valid IP address. Waited on hold with Mediacom for a hour before being disconnected, trying to find out what the IP address was and where to re-enter it, since unchecking the IE8 box in the Windows features part of the Control Panel, doesn't just temporarily disable the function, but apparently actually deletes the toolbar icon, as well as the IP address. Took several more attempts over several hours to get ahold of Mediacom reset the signal to get the IP address back and get back online. So that really does not seem like a viable solution for trying to save time and resources by removing something from the startup menu, if it just quadruples startup time, deletes WIE toolbar icon and IP address permanently, requires creating a desktop shortcut, and then requires several more hours on phone with ISP for signal reset to get the IP address back. Would have been much faster and done less apparent damage than just going ahead and letting it launch at startup and then just closing it. *sigh*
I know that just having an icon in the toolbar does not mean that that particular program will launch at startup, as I have several others that have toolbar icons that I have been able to uncheck in the startup menu, so I can use the toolbar icons to launch each program manually. There just doesn't seem to be any program active in the startup menu that would be launching the browser, and still concerned about unchecking something necessary in startup that could screw it up even more.
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How do I disable startup sound OSX 10.8.2?

no problem:
before going deep, some points here:
I own about 13 Apple Devices since almost 7 years and my country is the first where Apple has the most OS market share:
http://royal.pingdom.com/2011/03/16/the-10-most-mac-friendly-countries-on-the-pl anet/
Also, I have about 50 "close" friends that have Mac OS products (imacs, MacBook, Air...)
I never, ever had a recovery problems in 7 years and that's why I buy Apple products.I never, ever heard a friend, in my country or in another that was stuck because of the start sound. (i already have had a friend that have to replace it, but starting sound was not necessary on this case).Here 4 situations with a MacBook Air:
You try to start the Mac, nothing happen, even if the sound would work. In this case, battery was completly down. So you plug it, wait 3 mn and start it. What would be the use of the sound here? Should they not "spare" some battery just to make the sound work? No I do not think so.
You try to start the Mac, you disabled the sound and nothing happen. You bring it to Apple and they discover that your screen is dead. What would be the use of the sound here?
You try to start the Mac, you disabled the sound and nothing happen. You bring it to Apple and they discover that your processor is dead. What would be the use of the sound here?
You try to start the Mac, you disabled the sound and nothing happen. You bring it to Apple and they discover that you could repaired the problem if the starting sound could be heared. But you just putted on mute before the last shutdown. (so why not make the sound work, even though you putted on mute on this case?)
Seeing your "level" and points, I am pretty sure you will come with many counter arguments and I do not really care about them frankly.
My point is, after 7 years using Apple products, I am more than happy to have them and I will continue to buy them because they are so amazing, it never appear to me that I need this starting sound that causes me more trouble when i start it and my wife or kids are sleeping not too far, trying everytime to put me far away and try to hide the Air under pillows when I start it.
Frankly, if that's going to happen to me in the next 7 years, I would be more than happy to go to my Apple store and bring them back to their specialists and hear I was a bad boy, i should not have disabled the sound. I will not care 1 second trying to fix it myself if I do not see how to fix it. And I will return home, with new Apple products I would have buyed in the meantime.
My turn to ask you a question, if your car tomorrow does not start (you do not hear the starting sound ;-)), are you going to try to remove the motor and see if perhaps you can do something yourself?
If you are a mecanics, maybe, if no, I doubt.
If there so many threads about this and some software build around this, it means there is something about it.
I guess you are going to defend your point telling other things...
If that happen to me, I am sure Apple guys will fix it. That's my ultimate solution. Period.

How can I turn off the startup chime on my new iMAC (Intel based)?

Hi,
Every time I turn on my iMac the startup chime is very loud. It doesn't matter whether I lower or mute the volume prior to shutting it down, the startup chime volume is unpredictable. Is there any way possible to control it without having to download a third party program?
Thanks!

Thank you for your response.
I seem to get a lot of conflicting information whether you should shut down a computer at night or simply put it to sleep. However, that is another discusssion
As to the startup chime, ideally I would like to be able to control the volume at least (not mute it). I will still be able to hear the chime when the iMac starts up, but right now it sounds like a church bell going off in my apartment whenever I turn on the computer!

How to quiet the Startup Chime!!!!

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Psst doesn't work!!!
Start up sound doesn't work as well!!!
Is there something I'm missing out here?
Thank you in advance.

Hi Flocarino!
Have you tried these Startup Chime Stopper
StartupSound.prefPane?
ali b

How Do I Get My Startup Chime Back?

I have the opposite of what most posters on this subject say. I can't turn the chime back on again.
Like many others, I did not want the chime to disturb meetings and such. So one day I held the mute button down while pressing the startup button on my PowerBook. It worked to get rid of the chime (the PB started up in silence). The system volume remains adjustable and otherwise works normally.
But after trying several combinations of buttons on startup, I can't restore the chime.
I'd rather not turn to third party preference panels, but I will if I have to.
Any thoughts?

Hi Richard
This is the Apple answer
Mac OS X 10.4: Startup chime doesn't play on startup
If you wake your Mac from sleep, then shut it down or restart it before playing any audio or adjusting the volume, you won't hear the startup chime on your next startup.
Don't worry. There's nothing wrong with your Mac; it will start up normally. To ensure that the startup chime sounds on startup, simply play an audio file or adjust the system volume after waking your Mac from sleep before restarting it or shutting it down.
http://docs.info.apple.com/article.html?artnum=302353
chris

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Something odd has happened with my Core2Duo 24" imac. I went into windows and installed bootcamp 3.0. When I was finished, I restarted to come back to the mac os, and it played the startup chime 3 times (they seemed a little shorter than the normal chime) then booted and everything seems normal.
I restarted again, and had the 3 times again as well.
Any ideas on what this means?

Same here, seems to have begun with Snow Leopard.
I had other problems with Windows 7 as well after applying the Boot Camp 3 drivers. For a while Windows wouldn't start at all. It hung at the "Starting Windows" screen unless I booted into safe mode.
I think I solved that by disabling Apple's HFS drivers for Windows.
Might be related, thought I'm unsure how.
I think I'm just going to sit tight until W7 is officially released. Maybe Apple will release a Boot Camp update with different drivers.

No startup chime, red light, fans running loud...

yeah, I know that there are other threads with the same topic, but I just wanted to know how common this problem is?
How many people have experienced this?
What are the common disturbances?
What is going on?
Why is such an expensive, powerhouse computer become such a puny electronic product because of power issues?
I posted this in another thread but,
Here's my story:
I am having the same problem.
Now before you start taking advice to back up all your data, reformat your hard drive, and reinstall all the software; please take note of a few things:
first off, I'm ****** that this is happening to me. I spend $5000+ for a "reliable" Apple computer. Then it doesn't want to turn on because its not safe. Sorry if I drown this post with bitter sarcasm but I am coming to the end of the line with my patience.
I called Apple Care, read a bunch of posts (here and elsewhere), and yes I do know about the SMU Reset button (like that really does anything?).
My problem happened a few weeks ago and I thought nothing of it at first. There was a power outage for a quick second and it turned everything off. When I went to turn on my computer, there was no chime, the red light was on, and the fans were running and eventually began running very loud. After letting it run like that in hopes of the screen lighting up, I turned it off by holding the power button. By the way, there's nothing on the screen and the keyboard doesn't work (I use a wireless keyboard, but I plugged in the OG cord keyboard to push whatever series of buttons recommended by these "geniuses") Trust me, the computer doesn't make it to that part of the boot process, so stop with commandoption+PR or F12 to get the CD out. It doesn't work! What's up with this computer! It can handle all these intense calculations,etc. but a power surge is going to shut it down indefinitely.
So I left the computer came back the next day, turned it on and its fine. Cool, I'm happy. It's Working!! I go on a few weeks, then I go to turn it on this Monday, same problem. But actually a worse situation. I had a client come over and the computer wouldn't work. I looked like a idiot. Couldn't do anything cause my computer didn't want to turn on. I do music production/editing. I use my G5 for running ProTools LE. I have other programs but that is the main one I use. There's nothing wrong with it. It's optimized for use with the mac. So those people who are going to advise me to uninstall all my software and all that - I appreciate your concern but don't give advice when you don't know anything!
So I am getting frustrated. My client left a little disappointed, but what can you do? I tried to call AppleCare on Mon. but it was Memorial Day. So I waited for Tues.
Tues morning, my computer turns on like everything is fine.
I'm happy but cautious. I talk to AppleCare rep. He tells me that it is a common problem they have heard about with the G5's. Wherever blackouts, brownouts, spikes, sags, dips, and other electricity inconsistencies occur, the Power Mac G5 has a breaker in it which flips so it doesn't receive uneven power supply and damage internal components.
I like that feature. Good thinking Apple. Protecting my investment from bad electrical grids. But I don't like the fact my computer has a mind of its own where it decides when it wants to boot or when it wants to sit there and run its fans all loud.
I shut down Tues morn to go to work. I come back in the evening, it doesn't want to boot up. Instead of getting angry trying a bunch of times to turn on/turn off the computer, I leave my house all together and go and have a few drinks. I come home ,don't even look at my computer, and go to bed.
I wake up Wed. morning. Go to turn on my computer. Successful boot. It's running. Okay, I think, I'm going to get down to the problem. I read all the logs, not like I know every piece of info, but just to see what's happening. Everything looks fine. I decide to run the AppleCare CD Tech Tool. It says restart holding down C. I do that. When the gray Apple Logo comes up, all this writing about kernals comes up and it tells me to restart or shutdown. I shutdown and attempt to restart, same problem: no chime, red light on, and fans eventually spin loud. Now the CD is stuck in there. I'm going to take it to the Apple Store tomorrow to if these "geniuses" can figure it out.
(Just a side note: Apple calls them geniuses, but its hard for me to think some disconnected college kid with a bad haircut and questionable social skills knows what's up with the power supply issues of a computer; maybe I'm wrong, but you can run your diagnostics and look at the chart of what to do and all that BUT Apple needs to listen to the people)
I am going to get a UPS (uninteruptable power supply) with a clean sine wave output to curb the issue at my end. It's not my fault I live in a area that receives uneven power output. I live in Los Angeles. Summer is starting up and I think its going to be hot, so blackouts, power dips and sags are inevitable. I just don't understand why Apple hasn't considered this problem and fixed it with something:
A recall to change the power supply, Is it something on the logic board?, are they going to reimburse me for lost income (Ha, yeah right)
I really want to know how many people are having this problem?
From what I've heard, it is a common problem.
So I think we need a common solution.
If its so common, it must be the computer. We are all going to live in different areas where the power may vary. Not all of us have the consistent power flow of 1 Infinite Loop in Cupertino, CA. So if it is such a common problem, Apple needs to fix it.
I can't spend more than five grand on a super duper computer and have it wuss out on some power issues.
Its a loss of income and productivity to me.
I can't have that anymore.
Sometimes my computer turns on, sometimes it doesn't.
I bought my PowerMac G5 in April 2006, its been about a month and a half and I'm having these problems.
Thank you for your time.
If anyone else has been having this problem, I feel for you.
It was been very difficult for me not to curse in this post, but I have tried to extend the same respect to all that use these discussion boards to create dialogue, find help, and create solutions.
LETS FIX IT!
Peace,
Swami G
Power Mac G5 Mac OS X (10.4.6) Dual 2.3 Ghz / 4.5 GB RAM

Well, you can see my specs below. I have the same problems as you, just worse. I am also running (as I have my previous systems) on an APC Smart-UPS 2200, and it doesn't solve this problem.
I bought my machine last December. In early March (just 2 days before my 90 days of phone support were up), I woke the computer from sleep to check email; about 5 minutes later it just froze. I had to force it down, but it never even got to the startup chime.
Called Apple, bought Apple Care on the spot, spent about 45 minutes on the phone with two levels of support, and Apple couldn't really diagnose the problem. They decided to send out a replacement logic board, processor unit and power supply for on-site service (I don't have an Apple service center nearby).
Nearly two weeks later the technician arrived with the parts, installed all of them, and - nothing. The system still exhibited the same symptoms as before the repair. He spent around five hours here, most of it on the phone with Apple. They decided that the processor unit they shipped was defective, so they sent another processor unit.
Nearly another two weeks later, the re-replacement processor unit arrived with the tech. He installed it, and everything worked. This was around April 1.
Fast forward to last Wednesday. Arrived home from work, tried to wake the Mac. Nothing happened. Had to force the machine off. Never booted again. Called Apple and went through the motions again. They're sending another logic board, processor unit, and power supply.
I asked about having the machine replaced since this will be the third repair attempt, considering it took two visits and nearly a month to repair it the first time it died. Apple was unwilling to replace it but I was told that if I had another failure, a replacement would be in the cards.
I agree with you about needing reliability in a computer as expensive as a Power Mac. It is not acceptable to have this kind of failure, repeatedly, with this kind of system. If my Windows PC has a hardware failure, I can take care of it myself. A top-end power supply is ~$200, a quality system board is ~$200-$300 - all very doable, and in very little time, if the need arises. A Power Mac logic board is ~$1K, a cpu module is well over $1K, who knows how much that crappy power supply costs, etc. If you have Apple Care, you face the kinds of downtime I'm having to deal with. A month without use of your computer. I mean, if I buy a Dell workstation, or an HP workstation, and pay an extra $200-$300 for service and something fails, Unisys will be here the next day and it will be fixed. That's the standard business class service experience you get from those companies with a computer that costs $600, much less the $3000+ you dish out for a Quad Power Mac. Apple's response is unacceptable.
It's a good thing I have kept my Windoze machine around, cause it's really saved my butt the last 2-3 months; that also makes me really sad, because in the last 6-7 years of Power Mac ownership I've had zero problems with any of them. My dad has my previous machine, a Rev A Dual 2.0 G5, and it's rock solid.
I sure hope that the Intel based Power Mac replacement doesn't suffer from what ever seems to afflict the recent Power Macs. I would absolutely hate to abandon OSX, but I will not put up with this kind of quality failure (hardware & service) again.
Power Mac G5 Mac OS X (10.4.4) Quad 2.5 GHz, 4GB RAM, Disk0: 74GB WD Raptor

How to disable startup chimes

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