Strange noises when in sleep mode???

Hello,
Have had my brand new 27 inch iMac for about 3 weeks now. This is my first Mac computer. When in sleep mode the iMac sounds like it wants to start up and then there is a clicking sound. Just wondering if this is normal. . .or, should I shut the computer down?
Thanks.

To me any clicking sound is not normal unless on a Mouse or Trackpad. Do not delay to have it investigated, take a look at Apple returns and refunds from here.... http://store.apple.com/uk/help/returns_refund

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Here are some observations and a suggestion.
1) I mentioned before, that the number of views of this discussion forum is fast approaching 100,000. I suppose relative to all iPhones sold that is not a great percentage, but 100,000 still sounds pretty impressive to me. Consider also that many people probably have this same Sim problem and are not viewing this discussion forum because thay do not know it exists. How many people are REALLY experiencing this problem? Who knows. But I suspect it is more that 100,000.
2) To the best of my knowledge, Apple does not consult these forums as a guide to awareness of product performance. It may be company policy, but most of the time when I speak to an Apple employee they seem remarkably unaware of the "Top Stories" in the Apple Discussion Forum. This, despite the fact that my personal experience with customer service at Apple is excellent. So, as much as we of this discussion forum are confident SOMEONE important at Apple is reading all our posts and taking them to heart...I am not so sure.
3) I have been told over and over that the best way to gain Apple's attention regarding a problem is to post a comment on their Feedback Site. One comment about a problem is pretty worthless. 100,000 comments on the same issue, I'm guessing, will really get their attention.
4) Some folks have mentioned a recall to address this problem. Although such a thing is always a possibility, I don't see it happening. Why? When the brakes on a Toyota don't work, or that Toyata starts to accelerate without driver intention...well, that involves human life and the stakes are quite high. For many reasons you would see the automotive industry eventually be forced into a recall program under such a situation. But, a phone APPEARS to not nearly be such a life and death device. Or is it? My daughter's iPhone 4S developed a "SIM FAILURE" on the same day her car broke down in the middle of the very rural area we live at around 10:00 pm. She is 17 years old and was coming home from high school play practice. You can imagine the anxiety I and her mother felt when she did not arrive home on time. She eventually walked about a quarter mile to a house of a stranger and had to ask to use their phone to call us. Now, I am not saying that strangers where I live are not to be trusted. But, in addition to being worried out of my mind, I was not happy that an inoperative iPhone 4S caused my daughter to be put in this situation. My biggest concern now is...when will my daughter's iPhone become inoperative again due to SIM FAILURE?
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The link to feedback site is: http://www.apple.com/feedback/
Feel free to use copy/amend/whatever the following as you wish:
Dear Apple,
I wish to register a strong concern about my iPhone's unpredictable inoperability due to failures somehow associated with it's SIM technology. For me, I do not consider this just a significant lack of convenience, but a significant safety issue. Should I need my phone in an emergency situation where it is experiencing a SIM FAILURE, I believe the iPhone will have put me at risk. I would ask you to please give fixing this problem your greatest priority and effort.
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Hi,
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Thanks tjk.
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I have the same symptoms with a 2011 iMac and my Senheiser Bluetooth headphones.
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https://discussions.apple.com/message/5962104#5962104
https://discussions.apple.com/message/12837199#12837199
http://apple.stackexchange.com/questions/26991/os-x-lion-mail-app-sound-effects- bug
https://discussions.apple.com/message/15856803#15856803
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My iMac is 2 years old. I have noticed that when I put it to sleep, the hard drive makes a
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the iMac also seemed to be making the Lacie whir every so many minutes, too. I have since
temporariily shut off my Lacie, but the clicking sound persists. It also seems to me that at
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I never hear the clicking noise when I am using my iMac.
I read many posts about other iMac owners having a similar problem. One "suggestion" was that
the iMac is not really in sleep mode. I don't understand that since I use the Sleep prompt under
the Apple O.S. Icon. I read somewhere else that the clicking is the cooling of metal, or something
like that. That seems a "reach" to me.
Any suggestions (or directing me to a thread that specifically addresses this issue) would be
much appreciated.
In any case, if I need to call Apple Tech (I have 1 year left on my warranty coverage), I would like
to know if they have probably encountered this problem. Also, what would be a good way to explain
the issue, if you can advise me on that.
Thanks!

I have since called Apple Support about the problem. They did not solve it, but did offer to call back. I was unable to be home for the call back. I will call them again, but they did not seem to be aware of any "clicking" problems the iMacs were having.
I timed the clicking noises while the iMac was in Sleep mode; it is every 2 minutes almost consistently. (Not the 5-10 I mentioned in my first post.) Also, it then has a slight "whirring" sound after the "click" or "ping" as if it is trying to process something.
My iMac does not make the clicking/pinging noise while not in Sleep mode.
I have searched the Net and these forums repeatedly trying to find someone who has had a similar "clicking" sound. One fellow suggested his hard drive clicked in Sleep mode because it was looking for a printer. That is not the problem I am having, since all printer jobs have been completed.
If any of you could help me on this or direct me to a thread that addresses the issue, I would appreciate it immensely.
Thanks.

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Hi, this is the most paranoid question from me ever... so be patient please...
I have this problem, I've recently noticed that sometimes my macbook pro (2010 i7) is making strange noise (it is not hardrive, not fans), it is like the old TVs without any signal, or analog monitors long time in stanby mode (not all, but low end ones). It is close to this sound that I found on youtube, but this isn't my video http://www.youtube.com/watch?v=fOjgdx-aKsE
This strange sound I've got with downloading some files from internet, sound came from place where is MagSafe, but I don't think it is it, 'cause that is when is plugged in and olso plugged out (power cord). It is maybe one centimeter under MagSafe... But when I look at the picture of macbook pro dissassembled, Airport Express is close to it.
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Thanks for ANY response.
Have a nice day

hello,
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happens with youtube vids.
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Hi,
We just bought a new Laserjet Pro 200 MFP M276n. When the device goes to sleep mode, it doens't recognise any incoming fax call. When the device is on, and someone tries to send us a fax, the device recognises the call, answers and receives the fax.
We tried to update the firmware to the latest version but we still have the same problem.
We use the original HP cables to connect the device to the line and when we tried to replace the device with a telephone cord, the phone rang normally. So I believe the problem is somehow on when the device is in sleep mode
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Thanks

Hi @Fedias,
I understand that when the printer goes into sleep mode, it doesn't wake up to receive a fax. I can help you with this.
Check the settings for the Wake Events on the printer.
Go to setup, System Setup, Energy Settings, Auto Power Down, Wake Events, arrow down and select Fax Ring.
This should wake up the printer when a fax comes through.
If you need further assistance, just let me know.
Have a nice day!
Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

Strange noises when in sleep mode???

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