IMac (Intel) :: Internal Speakers Have Disappeared Following RAM / SSD Upgrade

Sep 11, 2014

I have a 27" mid-2011 iMac - today I upgraded it to 16GB RAM and added an SSD (in addition to the existing hard drive). The memory upgrade I performed myself but the SSD upgrade was done by a qualified tech.Now my internal speakers no longer appear as an audio output device, instead I have a "digital out / optical digital-out port".

I cannot adjust the volume (my menu bar volume icon is greyed out) and no sound plays either through the speakers or connected headphones once I login, however I hear the startup chime when I first turn it on, so this doesn't appear to be a hardware problem - it is perhaps a driver issue?

Is there any way I can rectify this without reinstalling OS X? I plan to install Yosemite on the SSD once it's out but would prefer to wait rather than installing Mavericks on it first.I have already tried resetting my SMC, resetting my PRAM a few times and also reinstalled the 10.9.4 combo update, but neither have resulted in any changes.

Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.3)

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IMac (Intel) :: No Sound From Internal Or External Speakers

Jun 27, 2014

Imac 27" mid-2011 running Maverics 10.9.3  I'm not getting any sound from internal or ext. speakers.  I can hear the startup sound when booting up.

System Preferences->Sound only shows Digital Out for OUTPUT and Output Volume is maxed and can't be adjusted.  Mute is NOT checked.

I've done an SMC and PRAM reset with no change.  I've tried multiple times plugging and unplugging the external speaker cable jack.

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Jun 2, 2009

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Oct 7, 2009

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Dec 27, 2009

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Intel Mac :: No Sound From Internal Speakers?

Mar 22, 2012

the ONLY output device listed in my system preferences is Digital Output with Optical Digital-Out Port. I NEVER used headphones or any external speakers. I don't know what turned the Internal Speakers OFF But I would like to turn them back on. I can't find any thing any where in the OS that would do that. Any one has ANY Clue to why this would happen?

Info:
iMac, Mac OS X (10.6.8)

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Apr 23, 2012

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Info:
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Dec 1, 2009

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IMac :: Using Internal Speakers Without Unplugging Headphones

Mar 28, 2010

I'm still in love with my iMac, now entering the phase where I have to fight with SWMBO* to get access to my main machine. I have plugged a pair of headphones in the iMac but I would like to be able to find a software solution that would let me switch between headphones and the internal speakers of the iMac (which are quite good actually!) Plugging / Unplugging is not really ideal and I swear I thought I could do this on my powerbook...

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Intel Mac :: Internal Speakers Cannot Be Chosen As Output

Feb 25, 2012

I usually listen to any output from my iMac (Intel Core 2 Duo 3.06GHz, 27", early 2010) through an external amp and speakers, via the analog output (headphone socket). However - I recently disconnected the jack plug to listen through the machine's internal speakers but was greeted with silence. I checked the volume via the kb controls - the mini display appeared on screen suggesting that the volume was set on full, though I could not adjust it at all. I reconnected the jack plug and sound came out from my external speakers as usual. On disconnection, no volume. I searched the forums for ideas, and came across this support article: [url],,, which I followed to the letter.

When I open 'Sounds' in System Preferences, the only output option available to me is 'Digital Out' - there is no option for internal speakers or headphones. However, if I plug in the line-out jack, the options change - only 'Headphones' is available (no 'Digital Out' any more). Following the article, I checked to see if there was a red light in the digital output socket, which there is not.

Info:iMac, Mac OS X (10.6.8)

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Intel Mac :: No Sound On Internal Speakers In ITunes

Jun 15, 2012

I have checked all sound levels including Audio Midi in utilities. In system preference the output is Digital Optical and nothing else is available to select. It also says this sound output has no controls - is this correct? The sound icon in the menu top right is greyed out and I can't adjust the level. I have an Apple TV and have turned off airplay on that? Also have checked computer speakers (not Apple TV) in iTunes. I had this problem before but rebooting fixed it.My son plays Minecraft on this computer and watches millions of uTube stuff. He may have used his earphones then. Could this be the problem? Nothing is muted in sys pref or utilities audio midi.The chimes work when starting up. The mic sound levels are moving.

Info:
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Nov 2, 2010

I have plugged a toslink cable between my 5.1 amplifier and my iMac, but I would like to be able to find a software that would let me switch between digital out and the internal iMac speakers (which are quite good actually!)

I know it is a Mac OS driver limitation since Windows 7 (via Bootcamp) let me choose the output. In Mac OS once I plugg something, "Internal speakers" output option disappear from sound preferences, audio midi setup, HalLAB, .... This causes unnecessary wear and tear on the audio port from constantly inserting and removing the cable to switch from built in speakers to external audio system.

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Jul 23, 2009

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May 1, 2012

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Info:
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Mar 19, 2008

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Situation: no sound out from speakers in admin and user account and newly created account. Headphones work, startup chimes work on speakers.

Go to Sound in Preferences and only shows Digital Out for output. Should show Internal Speakers. Ran Diskwarrior and Applejack and zapped pram. Took mac apart and confirmed speakers wired correctly which is verified by the start up chimes being audible on the internal speakers. tested all accounts and created new account all with the same results. Did search of Google and MacRumor. Found one unaswered post indicating same problem. Had same problem with another macbook pro, ran same steps, take apart, confirm wiring setup, Diskwarriored, applejacked and zapped pram and it fixed the problem. I'm not sure what else to try. Did check Audio Midi Setup util and it also did not see the internal speakers.

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Apr 13, 2012

Can't access external headphone or external speakers.  Choice disappeared on output, still there for input.

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So... for reasons unknown, my macbook pro is not recognizing it's internal speakers, in the sound options for output it only shows the digital out option.I searched trough the apple support site and the mac's help and all they say is to select the speakers, but that's kinda hard when they play hide and seek. Anyone knows what's up with that? Cause the weirdest thing is that they will make that mac sound when you first press the "on" button.

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I have a new aluminium 2.53 MBP and have installed vista 64 ultimate on it via bootcamp.

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