Physical reason of the whine (CPU, LCD) - explanations and suggestions

Hi everybody,
a friend of mine just received his MacBook Pro (2 Ghz, 2 GB RAM, 5400 RPM 100GB HD) yesterday.
I encouraged him to buy one of these machines in spite lots of people are complaining about the whine. We hoped he would be lucky to get one without the whine but we were disappointed.
The book has the whine (high pitched tone, very nasty). It is even louder when running from battery.
He will try out the book for a week and see if the whine is bugging him and
driving him crazy when working in a silent environment.
I would go nuts if I have to hear it all the time.
I studied lots of threads here in the discussion board but none had answered my questions.
1) How do I know which whine - CPU or LCD whine - my friend's laptop has?
2) What is an LCD inverter - 0 in 1 out - 1 in 0 out?
3) What could be the physical reason for the CPU and LCD whine?
4) Therefore what could be done to eliminate the whine technically in a correct way (not such 50% solutions like the mirror widgets or photo booth)?
5) Will there be a real fix in the foreseeable future?
Thanks for your help.

If you have the high-pitched whine that changes with LCD brightness, that is a recognized problem and can be fixed by changing the inverter board.
The whine related to CPU activity currently seems to be officially stated as normal by Apple (this might vary depending on who you talk to).
Am I right when I say that until Apple states that
the whine is actually a real problem we won't have a
official solution for that?
Another question when a MacBook Pro has the whine is
this a hardware defect or can it be seen as working
within normal parameters?
There are different reactions of Apple techs dealing
with the problem.
Is it worth calling them because of the whine even if
there is no actual solution or fix for that problem?
Thank you once again.

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Hi All,
I have been waiting for a solution for the "idle CPU whine" issue since I returned my MacBook Pro because of the whine.
First of all, we need to filter out all the posts where a person says that he does not have the whine but has not heard a whining unit. So, we need to focus only on experiences of people who hear the whine or do not hear whine but have heard the whine in another unit.
Secondly, I think that the build week number has no significance on the whine issue. More interesting would be to have people sending here the last part of their serial number, which supposedly is some kind of configuration code, and stating if they have the idle CPU whine or not. Maybe we could get some new information out of that.
Do also state, if you have actually compared a whining and a non-whining unit. If you have not compared the no-whine opinions are useless as they are merely opinions without a reference to a faulty unit.

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The real reason why Apple claims the "whine" is within specs...

...the crew at Apple must be too old to hear it. :-]
http://www.nytimes.com/2006/06/12/technology/12ring.html?ex=1150257600&en=d10bb7 67a0806d37&ei=5087%0A

It hinders my performance to be annoyed for hours on
end.
Fair enough, that's a good point. Especially if someone went from a powerbook (which I found silent) to this machine (which is clearly not).
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I was merely saying that this is a SUPPORT FORUM, and it is annoying to open up posts to see that it has NOTHING to do with gaining support for problems; hence why I reply since I already looked at the post, so has now made it worth my time to put in my opinion.
With that said, there should be a non-support section so users like the one above, (that like I even admitted, offered a very humorous post) has a place to put their non-technical gripes so that people that are LOOKING for SUPPORT, don't end up reading what they would consider nonsense.
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But then again, what do I know? It's not like I don't have a "helpful response bar" under my name (like many of the users that provide real technical feedback here).

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I'm starting to notice something. Of all of the users who are (rightfully) complaining about the whine problem, it seems that none of them are those with the 2.16GHz upgrade. I recently ordered my MacBook Pro (and therefore do not have it), but a quick glance over the forums affirms my suspicion.
I could be completely wrong; I didn't have the time to completely delve into the many "whine" threads, so this topic will solve this matter fairly quickly!
I have a 2.0 iMac Core Duo. Soon to add a nice, shiny MacBook Pro. Mac OS X (10.4.5)

I'm starting to notice something. Of all of the users
who are (rightfully) complaining about the whine
problem, it seems that none of them are those with
the 2.16GHz upgrade. I recently ordered my MacBook
Pro (and therefore do not have it), but a quick
glance over the forums affirms my suspicion.
I could be completely wrong; I didn't have the time
to completely delve into the many "whine" threads, so
this topic will solve this matter fairly
quickly!
I have a 2.0
iMac Core Duo. Soon to add a nice, shiny MacBook Pro.
Mac OS X (10.4.5)
I Just recieved my 2.16GHz MBP today, and it does not have to LCD inverter buzz. I do however have a slight CPU whine but it is not terrible. Furthermore, I don't care much for notebook trackpads and am using a bluetooth mouse. The Mac Book is silent when the mouse is connected. I've read on these forums, that Apple knows of the CPU whine issue and a software update will be released. So far this is a very cool machine. I am calibrating the battery so I haven't tried out everything yet. By the way, I am using The MouseBT by Chwang Yi (formally MacMice) and I like it so far. I like that it's very similar to the Mighty Mouse which I use on my G4. Good Luck with your MacBook!
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Physical reason of the whine (CPU, LCD) - explanations and suggestions

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