There is no sound on my IMac-also no start up chime sound

Suddenly, the sound is gone on my IMac. I don't get a start up chime sound, either. I recently installed software updates and don't know if this has anything to do with it. (OS X version 10.6.8). I will install Snow Leopard soon but want to resolve this first.
Anyone have any suggestions? I'vd done the obvious- checked to make sure the mute wasn't on, loooked at sound settings, etc.
Recently the fan was kicking on high. I don't know if this is a sign of an impending crash.

Is there something plugged into the iMac's audio output port? If so unplug it, restart the iMac and then plug it back in.
If not, reset the SMC > Intel-based Macs: Resetting the System Management Controller (SMC)
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Wait fifteen seconds.
4. Attach the computer's power cord.
5. Wait five seconds, then press the power button to turn on the computer.
and reset the PRAM > Resetting your Mac's PRAM and NVRAM
1. Shut down the computer.
2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
6. Release the keys.
Then re-check for sound output.

Similar Messages

IMac won't start - no chime=no hope

iMac won't start
Power light on front comes on,
NO chime
Some very quiet sounds for a few seconds and nothing else
I'm assuming the worst....dead hard drive?
What- if any- are the options for repair - any idea of a general $$ amount
thanks

Hey Sheryl et al,
In the 1st gen and ALS G5 iMacs the first thing to check out is the capacitors on the logic board. If those look good and I mean absolutely pristine, then open up the power supply and check the ones in there.
Note: The diagnostic LEDs I consider to be a general indicator and not infallible.
The iSights are much more difficult to work on since opening them is much more problematic. The ones with the ATI X600 GPU chip have a high failure record due to that chip.
Also the iSight's power supply is another failure point.
As Richard notes a new power supply will run just over $100.
However a logic board swap will run $350 - $400 depending on model at DT&T services in CA.
Also Apple could/should theoretically do what's referred to as a "depot repair" on these machines for a flat $350. It would depend (as always) on the Apple Tech/service person you're dealing with.
A final note, I repair and donate these to deserving not for profits.
Harry Porterfield did a piece on me a few years ago.
http://www.vimeo.com/150591
Here's the URL to the TV station site:
http://abclocal.go.com/wls/story?section=local&id=5097319
Richard
Message was edited by: spudnuty

17" 1.83GHz Core 2 Duo iMac not making start up chime

Hey. I couldn't find an appropriate thread for this in the software issues board (since it seemed more like a software problem), so I came here. Anyway, my iMac no longer makes the startup chime. This isn't really a problem, but I do miss the startup chime. Thanks.

It might be that the initial system volume level is low or off.. that has happened to my Mac once or twice... lets hope it is.
http://docs.info.apple.com/article.html?artnum=302353
Startup chimes (or lack thereof) in conjunction with other symptoms may be a precursor to some issues. Just so you can look over it.
http://docs.info.apple.com/article.html?artnum=300552

HT2178 I do not have sound on my computer. It was fine last night but when my husband turned it on this morning, there was now sound. Also My iPhoto shuts down when I try to run a slide show. I have just had my computer for 2 1/2 weeks.

I had sound on my computer last night but when turning on this morning there was no sound. It is not muted. Any suggestions. Also, when I try to run an event in IPhoto as a slide show, it shuts down.

Just to clarify, does iPhoto unexpectedly quit or does your computer shut down? For the sound problem, try here:
http://support.apple.com/kb/PH3837

HT4993 I had my iphone s4 on seasonal standby. I am now using it again, but when i try to play music on itunes, there is no sound. Also no sound for youtube.

I had my iphone s4 on seasonal standby. I am now using it again, but when i try to play music on itunes, there is no sound. Also no sound for youtube.

music and video has their own volume slider it's displayed in the player itself lowing the normal phone volume does not affect the media volume

TS1702 I have a new iPhone 5 with Pandora app installed. When I am in my carwhich also has a Pandora APP, I cannot get either to play. The phone on it's own acts like it is playing my music but there is no sound! The car does not seem to recognize my p

The Pandora APP is installed on my iPhone5 & works fine except when I am in my new car that also has a Pandora APP. The car doesn't seem to recognize the phone so doesn't connect. My iPhone will act like it is playing Pandora as usual but there is no sound at all when I am in the car. What do I need to do?

Hello Mogulman46,
So what that means is when you have Do Not Disturb turned on, you may have an alert depending on the setting and how you are using your iPhone. So if it is set to Always, then that means that no matter what, your iPhone will not be notified. If it set to Only while the iPhone is locked, then that means that you will not get notification when your iPhone is locked but you will get notifications if your iPhone is being used. Also keep in mind the settings All Calls From can be set to certain contacts like Favorites, Everyone or no one. If you are using Do Not Disturb and you do not need it, then turn it off.
Use Do Not Disturb on your iPhone, iPad, or iPod touch
http://support.apple.com/kb/ht5463
Regards,
-Norm G.

After installing Mountain Lion. Under sound, where it says select an output device, it say no output devices found and there is no sound. How do I fix this? I have reinstalled the os twice and still the same. I have also repaired permissions.

After installing Mountain Lion. No sound. Under sound, where it says select an output device, it says no output devices found, and there is no sound. How do I fix this? I have reinstalled the os twice and still the same. I have also repaired permissions.

Try resetting the PRAM and SMC...
PRAM Reset:
http://support.apple.com/kb/HT1379
SMC Reset:
http://support.apple.com/kb/HT3964
Hope this helps!

There is no sound when mirroring to my AppleTV from my iMac.

I have a brand new AppleTV that purchased less than a week ago and fully updated the software along with a late 2013 iMac running Yosemite (installed a couple of days ago). Whenever I mirror from the iMac to the AppleTv there is no sound.
I don’t have any problems mirroring from either my iPad or iPhone the problem is only happening with my iMac.

Hey thorin01,
Thanks for the question. Let’s check to see if your sound output is set to your AirPlay device:
OS X Mavericks: Adjust your computer’s sound output
http://support.apple.com/kb/PH13908
Thanks,
Matt M.

As there is no sound only picture when connecting my ipad, do I need to also use the audio cable from Apple TV to an older Philips TV?

I have just bought a black Apple TV and it works fine when connecting my iPad to a modern TV. However on an older Philips TV, there is no sound coming through. Do I need to use an audio cable from the optical digital audio port in addition to the HDMI cable? The TV's HDMI does not appear to support sound.

Thanks. However no luck with this TV so far. I've purchased a converter to give a digital audio signal from the optical digital audio output port. The TV has an input audio digital port, but I've had no success in getting sound so far.
Is there any setting in the Apple TV menu that may affect the signal. I've tried the setting for 16 bit signal, without any success.
Perhaps this Philips TV may just not be compatible with the new black Apple TV. I have talked at some length with Philips support desk, but they've offered nothing new.

Start up chime, but no other sound from iMac G5

i've seen this problem referenced on the forums, but have not seen a solution that works for me.
i tried reseting the PRAM to no avail.
start up chime does play
volume mute button in sound preference pane is grey out and checked
keyboard volume keys don't work, no response
plugged in headphones and heard sound through the headphones, but after unpluging them no sound. plugged the headphones in again and no sound
it's a 2.0 GHz iMac G5 with a 20" display.
any assistance is appreciated. thanks.
700MHz eMac

Carl: I checked for that startup sound prefpane and I don't have it. Also, here is a copy of my console and there isn't anything there either. thanks for your help
Mac OS X Version 10.4.3 (Build 8F46)
2005-12-05 10:12:40 -0700
Device Appeared
Found a device...
Activating the message port
Activiating timer port
<CFURL 0x301410 [0xa073a150]>{type = 15, string = Contents/PlugIns/,
base = <CFURL 0x301a80 [0xa073a150]>{type = 15, string = file://localhost/System/Library/Extensions/IomegaSAM.kext/Contents/Resources/Iom egaDriver.app/, base = (null)}}
<CFArray 0x303b60 [0xa073a150]>{type = mutable-small, count = 2, values = (
0 : <CFUUID 0x302380> 6489D402-14F7-11D6-96CE-00306557676C
1 : <CFUUID 0x303400> 21ED6942-3C86-11D6-BC93-00306557676C
before CFRunLoopRun
Dec 5 10:12:43 brian-cxxx-power-mac-g4 mDNSResponder: Adding browse domain local.
2005-12-05 10:12:45.233 SystemUIServer[93] lang is:en
Dec 5 11:49:00 brian-cxxx-power-mac-g4 configd[32]: AppleTalk shutdown failed, status = 71 (retrying)
Dec 5 11:49:00 brian-cxxx-power-mac-g4 /usr/sbin/AppleFileServer: AFPServer::AbnormalATListenerShutDown - clear listener

Is there a way to use the iMac's display mode with a Mac mini with out logging in first on the Mac mini

Is there a way to use the iMac's display mode with a Mac mini with out logging in first on the Mac mini (late2014)
im currently useing my Mac mini as a portable computer, I take it to the university and use the iMacs there as a monitor but before I can do that I have to log in to my Mac mini first which means doing it blind
is there a way to put the IMacs into display mode with out logging into my Mac mini first
or is there a portable monitor that I can use that will not require me to login first

This
Target Display Mode: Frequently Asked Questions (FAQ) - Apple Support
says:
How do I enable TDM?
Make sure both computers are turned on and awake.
Connect a male-to-male Mini DisplayPort or ThunderBolt cable to each computer.
Press Command-F2 on the keyboard of the iMac being used as a display to enable TDM.
Note: In Keyboard System Preferences, if the checkbox is enabled for "Use all F1, F2, etc. keys as standard functions keys," the key combination changes to Command-Fn-F2.
How do I exit TDM?
To leave TDM, press Command-F2 on the keyboard of the iMac that is in TDM. You can also exit TDM if you shutdown or sleep either computer or detach the cable.
Can I use a third-party keyboard or older Apple keyboard to enable TDM?
Some older Apple keyboards and keyboards not made by Apple may not allow Command-F2 to toggle display modes. You should use an aluminum wired or wireless Apple keyboard to toggle TDM on and

Theres very little sound coming from my speaker and people cant hear me i phone 4

theres very little sound coming from my speaker when i play music and ringtone it was working fine last night also when its going straight to voicemail when people ring but then coming through as a missed call, then when i recive calls i can hear people bnut they cant hear me is anyone else having this problem with there iphone 4

Hello adam-hardwick1993,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
iPhone: Hardware troubleshooting
http://support.apple.com/kb/ts2802
Best of luck,
Mario

There s no sound when I connect my aux wire with my Bose dock

There s no sound coming when I connect my Aux wire to my Bose dock.but my internal speakers are working perfectly , there's no output through aux

Hey there,
I know this post is very old but maybe it can help someone else at some stage.
This is my very first post on Mac Support so I hope it helps in some way
So I had a similar issue with my panasonic LCD HD TV.
I have an early 2007 MBP with a DVI output, not a HDMI. I use a DVI to HDMI cable to connect the two devices.
I understand that the DVI output from the MBP does not include audio, just video.. Is that also the case with HDMI I'm not 100%. To carry the audio I used the 3.5mm headphone jack to the older 'analog' red white yellow connections. I think it was red yellow or red white.. anyway, easy find what the video colour is.
I understand that you might not have used the 3.5mm jack, however, what I did to fix it might still help you.
Firstly, check your HDMI cable as I hear that some don't carry audio...
After that, check your TV settings on HDMI 1 and be sure it is set to 'digital input'.
I had to change my audio input to analog as I used the 3.5mm headphone jack.
Until I did that I had zero audio... Maybe your TV is on analog audio input by default.
"15" Macbook Pro, 2.33Ghz Intel Core 2 Duo, 4GB Ram, 750GB HDD" < (unsure why people add this info but here it is anyway).. I have a Macintosh product, I swear !

There's no sound on my MacBook

I have the original white body macbook. There's no sound when my laptop starts up and no sound period. There's also a red light in the headphone jack. When I try and adjust the volume, there is a "not allowed" symbol. Help please?

If you have headphones, plug and unplug them quickly. If it doesn't work, reset the PRAM > http://support.apple.com/kb/HT1379
Finally, open System Preferences > Sound > Output, and choose Internal Speakers

Has anyone else noticed since the last update to mountain lion, if you pit it to sleep, when it wakes there is no sound. you have to reboot to get sound?

I have found, in the past few days, since the latest update to Mountain Lion, if the Mac is put to sleep, there is no sound available when it wakes. I have to re-start to get sound back. Is this general??

Please read this whole message before doing anything.
I've tested these instructions only with the Safari web browser. If you use another browser, they may not work as described.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in “normal” mode, not in safe mode. If you’re now running in safe mode, reboot as usual before continuing.
Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects.
Some of the commands will line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then copy it. The headings “Step 1” and so on are not part of the commands.
Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign.
Step 1
Triple-click the line of text below on this page to select it:
kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}' | open -ef
Copy the selected text to the Clipboard by pressing the key combination command-C. Then click anywhere in the Terminal window and paste (command-V). A TextEdit window will open with the output of the command. If the command produced no output, the window will be empty. Post the contents of the TextEdit window (not the Terminal window), if any — the text, please, not a screenshot. You can then close the TextEdit window. The title of the window doesn't matter, and you don't need to post that. No typing is involved in this step.
Step 2
Repeat with this line:
{ sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|cups|isc|ntp|postf|x)/{print $3}'; echo; sudo defaults read com.apple.loginwindow LoginHook; echo; sudo crontab -l; } 2> /dev/null | open -ef
This time you'll be prompted for your login password, which you do have to type. Nothing will be displayed when you type it. Type it carefully and then press return. You may get a one-time warning to be careful. Heed that warning, but don't post it. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
Note: If you don’t have a login password, you’ll need to set one before taking this step. If that’s not possible, skip to the next step.
Step 3
{ launchctl list | sed 1d | awk '!/0x|com\.apple|org\.(x|openbsd)/{print $3}'; echo; crontab -l 2> /dev/null; } | open -ef
Step 4
ls -A /e*/{cr,la,mach}* {,/}Lib*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta}* L*/Fonts .la* 2> /dev/null | open -ef
Important: If you formerly synchronized with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting.
Step 5
osascript -e 'tell application "System Events" to get name of login items' | open -ef
Remember, steps 1-5 are all copy-and-paste — no typing, except your password. Also remember to post the output.
You can then quit Terminal.

There is no sound on my IMac-also no start up chime sound

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