27" iMac hard drive noise

HD "funny" noise started again, although my iMac was on the replacement program and I had my HD replaced. I should take more often back-ups

Hi there I have been having the same problem with the hardisk noises on my 27 inch i 5 2.7 ghz mid 2011 model and i am working with a sata hardisc on mine. My grumbling is quite faint and apple say that it is normal operating noises that the hardrive prduces sometimes even when the computer is on but not being used,I mean i woudn't bother changeing the drive as I think its normal on what apple say but i suppose it depends how loud it is,If it is terribly loud then yer you need to get it sorted but I think for computes like these they should be all dead quiet.I am thinking of upgrading to a 500 GB SSD Drive as there is no moving parts and there for no noise can be prduced but they also increase the performance of your computer quite alot.

This is what Apple Say about it

http://support.apple.com/kb/TS3204?viewlocale=en_US&locale=en_US

I believe I have "stumbled" upon the fix for the "percolating" noise in Imac HD. I was looking around in Safari and doing some editing. Open Safari Preferences, when the dialog box for General-Tabs-Autofill-Passwords etc appears,under Autofill dialog uncheck all four boxes ..... Worked for me. I am happy. I hope this works for all

I have a 27 inch imac 2011 with a 1tb wd hdd in , have had it replaced twice due to load noise and it still does it but every time i take it in the store say its ok and nothing wrong really does my head in as it was my 1st mac and cost a lot of money

After about 2 years i struggled with the noise (see my post in this thread below). So, suddenly a couple a weeks ago, the noise dissapeared. Don´t know why, but seems that my plan to send the iMac to service, can be cancelled.

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«I have Imac mid 2011, 21,4" (2,8 GHz, 16 gb ram, Apple 256 GB SSD-hd + 2 TB serialata-HD (Hitachi) and use the Imac as no 2-screen and Eizo CG223w as mainscreen.

I have to say that the noise is making me crazy.

I have been in contact with apple support, but their suggestions (restart etc) did not help. So they adviced me to send the machine to service. Support told me it was fan-noise, but i dont know, sounds more like HD.

Tried to download smcfancontrol, did not help.

So the terrible sound as many of you in this tread describe seems to come from the right side of the Imac. So it seems that it not helped change the Seagate-HD.

By the way: Where is the hd placed it the imac?»

i don't know if i already replay to the first tread but.. for all of u with this problem and i guess are many! the only solution is to add an ssd and remove that stupid HDD with 5400 rotations and add an external very slim and slick design hdd. my imac is dead silent now! the only problem is the HDD that huge grumbling noise u hear is not the fans.. not the mac is just the HDD! add a ssd and u will be the happiest imac user ever trust me!

gl and hope this helps!

and trust me few bucks more will solve this big deal noise!

Wow, just acquired one of these, Jan 2016, **** Seagate HDD. Obviously, well out of any warranty, great to know that the machine you got missed a vital recall. Meh. Noisy as you can imagine. No fail so far, but jeez, in a quiet house alone, it's the only noise I can hear.

I have a situation similar to @akisok and solved it after download and install http://www.crystalidea.com/macs-fan-control. Set the SSD to Ambient Sensor and the noise ends.

(new) iMac are quiet - probably the most quiet you can buy

I just got a 2015 uMac I ran it in a quiet room and couldn't hear anything at all 1 TB HD 5400/7200 noises or fan noises either no matter what my "usage / application" running/load was. i was surprised because this site had many noises fear Q&A.

I've read in other "mac is noisy" complain questions that other iMac users say the same: on iMac you can't even hear it it's so quiet.