MacBook Pro :: A Single POP Sound From Left Speaker After System Heavy Load?

Apr 14, 2012

I bought Brand New Macbook pro 15" Late 2011 Ci7, this is incredible machine. But a month past and i started to notice a very strange behavior: When i using mac for resource "Eating" application or processes my computer starts to Heat-this is normal.

When i close all the apps here starts interesting) I have Istat installed, so i can see what temps are in my system. Computer is cooling, and when cpu reaches 50-55 degrees (Celsium, from 80 degrees, because of heavy load) ,my left speaker produces a single loud pop sound. (like something turning of may be)

Info:
MacBook Pro (15-inch Late 2011), Mac OS X (10.7.3)

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Apr 6, 2010

Over the past few months or so, I've been noticing a sound, much like a buzzing, coming from the left speaker area of my computer. It seems to be near the area where I plug in the charger. The sound is not terribly loud, but when it's quiet in my surroundings, it becomes quite evident. I'm not talking about an audio-related issue, but I am just unsure as to what may be causing the sounds and whether or not I should be worried.

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Nov 13, 2008

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Info:
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Dec 21, 2009

I have a 2.1 Logitech Z4 setup, and the sound is only coming out of the left speaker. I have checked the wires, they are fine, and both speakers do work - but it could be the socket that's the problem. It's plugged into the line-in socket, I have put the output in System Preferences to Headphones, and everything is inserted correctly.

What do I do?

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May 30, 2010

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Jun 22, 2010

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Apr 24, 2008

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Oct 17, 2008

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Sure it's not so bad when I'm firing up VMWare and it skips around because response time isn't vital. But i'm playing games with it, and well, in WoW that means you run off cliffs and miss the potion, and becomes a major PITA.

I know the first version of the G5 (the rust coloured one) had similar problems. But apparently the new blue one (the one in question) is fine. The surface I'm using it on is a heavy sheet of cardboard (backside of a notebook).

Anyone else have this problem? And what does logitech do in these cases? I rang up tech support and got hung up on. Or do I need to go to the guy I bought it from?

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Feb 1, 2009

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it made me believe the hardware was the problem. First i swapped the Optical Drive with an older vrsion MacBook (2008), this gave me the same install-problem (stopped at 33mins left) Then i swapped HDD with the older MacBook. It managed to boot and start "normally" with exactly the same problems as the original HDD. The first thing that gets to my mind is that something might be fried inside the computer. 

I restored the original HDD with TimeMachine (needless to say i still got the problem). I'm in the middle of my exam-papers, so its reaelly annoying its happening now.I also tried installing OS X SL using an external HDD with an image of the installer disk made in disk utilities, but this only gives me "kernel error" during booting (the annoying dimmed screen with a black box in the middle telling you to restart). 

Today i took a look in the Activity Monitor and it shows the CPU acting strange, spending 100-120% on kernel_task ALL the time (see added picture).Is something wrong with the CPU? Is it possible to fry only one core in a CPU leaving the others intact?I have different components available for change as long as they match each other (Macbook pro 2010 and MacBook 2008).  

[URL]

Info:
MacBook Pro, Mac OS X (10.6.8)

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Info:
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Info:
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Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.7.3)

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Apr 26, 2009

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Jan 5, 2011

For the last two weeks I have been using my new macbook pro. I'm a bit concerned about the sound quality that i get from the speakers. According to specs it has a subwoofer (I know you can't expect much from a tiny laptop) but I still can't really hear any base/low frequencies and it sounds like a tiny cheap transistor radio . The volume is pretty high, I can listen to youtube etc, but its really almost only trebble. I expected a bit more. Is it normal for those macs or is it just mine?

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Jul 21, 2009

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Info:
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Dec 4, 2014

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Info:
MacBook Pro (15-inch 2.4/2.2 GHz), Mac OS X (10.7.5)

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Sep 9, 2009

I have been having this issue forever and want to do something about it now. Whenever the sound is mute on my notebook, and there should be sound playing (Ex.: Startup Chime), instead I get a LOUD pop noise. I understand the whole thing with the sound chip powering down to save battery life, but that requires the speakers to be un-muted. In my case, they are mute, and never get un-muted. What do you guys think. Logic Board/Speaker System Replacement?

Information:
Aluminum Unibody 2.4GHz MacBook (10.5.8)
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MacBook :: Speaker On Right Side Louder Than On Left Side?

Jan 10, 2009

It's only today that I noticed my MacBook's right speaker is considerably louder than the one on the left. I opened Sound panel in System Preferences to see if the balance was off, but it was set at dead center. Then, I dragged the balance slider all the way to the left to see if the sound coming from the left speaker was okay at all. Well, it sure isn't. Very muffled, muddy sound. No highs at all. Dragging the slider to the right side reveals a very different sound texture. Very crisp, as it should be. Really weird. Anybody else experiencing this odd speaker behaviour?

I googled for this problem and found this thread, right here on Mac Forums. It's a thread for the MacBook Pros, though. The people with a MacBook Pro think it's because there's a subwoofer on the right side. Well, the MacBook doesn't have a subwoofer, so it can't be that. Any ideas? Is it repair time?

By the way, I have a late 2008 unibody MacBook, the 2,4GHz model.

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