Currently Being ModeratedJul 7, 2012 3:38 PM (in response to pjb_uk)
Are you moving it around when this happens? All MBPs have a motion sensor in them that makes the HDD dock the heads when the notebook moves. More then likely that is what you are hearing. Stop moving it around and if and when you do need to move it from place to place close the lid which will put it into sleep mode. ,And if you are usinig it opn your lap/knees stop moving it in a quick motion. Put it on something more stable.
Currently Being ModeratedJul 7, 2012 3:41 PM (in response to Shootist007)
Nope. Not moving at all, just on the desk at all times. Even went as far as to turn the SMS off for a short time to see if maybe it was faulty, but still the same periodic click. :-(
Currently Being ModeratedJul 7, 2012 3:48 PM (in response to pjb_uk)
Then I'd say it isn't the hard drive or Apple really didn't replace it.
When you got it back were all your programs and files still on it? If they were Apple did not replace the hard drive.
Simple way around this. Apple has a 14 day No Questions Asked return policy. Us it and return that system and buy another. As it is now that is not a new system, IMHO. Any system a few days old that has something replaced is no longer new. It is used and refurbished. You did not buy or want a Used or Refurbished system. Go return it and get another NEW system.
Currently Being ModeratedJul 7, 2012 3:55 PM (in response to Shootist007)
I was thinking that. Annoyingly I didn't write down the drive's serial number before I took it back in. It'd be stupid for Apple to have not replaced it, especially as I had to wait a day for them to order in a new drive. Besides, yes, all my files were gone along with my user profile. I'd installed about 20gb of development apps on there the day I received it, and there was no trace of them being on the "new" drive.
I think you're right, it's probably best to return it, especially if it's something faulty on the logic board causing a power issue with the SATA interfaces. I'll argue the "refurbished" vs "new" thing with them and return it.
Currently Being ModeratedJul 7, 2012 3:58 PM (in response to pjb_uk)
No arguement needed. Just take it in with all the packaging and say "I want to return this". they will say OK or at the most ask why. If they ask why say "because I would like to return this". End of story.
Currently Being ModeratedJul 16, 2012 1:29 PM (in response to Shootist007)
Ok, so... Apple replaced the entire machine and priority shipped me a new one. Problem solved? No. This second brand-new laptop exhibits *exactly* the same problem as the last one.
It's left me wondering if:
a) it's a faulty batch of HDDs that Apple have as others have reported clicking noises from Toshiba MK7559GSXF drives?
b) it's a design flaw with the mid-2012 MBPs?
c) it's something to do with the high-res display model?
d) both got damaged in shipping and I'm just very unlucky?
Considering it takes 7 days each time for a new one to be custom built and shipped, I'm really peeved that this is happening. Am considering going out and buying an SSD and sticking it in there, but then I worry about the warranty on a brand new machine. But then again, it's is a faulty machine. Grrr.
Going to call Apple Care again in the morning and moan at them.
Currently Being ModeratedJul 26, 2012 1:18 AM (in response to pjb_uk)
I have exactly the same problem wih my MBP 13" mid 2012 and 500Go HDD bought on 15th June.
The problem was not present at the beginning.
Maybe it is due to one of the recent update.
Waiting for ML to see if problem disappears.
Currently Being ModeratedJul 26, 2012 3:15 AM (in response to pjb_uk)
One more point : my HDD is not a Toshiba but Hitachi : HTS547550A9E384.
So I am not sure that this noise is related to the disk itself.
I have used the laptop with SMS desactivated (sudo pmset -a sms 0) and the click is still there...
Currently Being ModeratedAug 27, 2012 6:55 PM (in response to pjb_uk)
Even though chances are small, but it is not impossible to get a second faulty drive. Or a third for that matter, just really really unlucky.
It doesn't however look like an issue with all mid-2012 MBPs since I haven't personally seen too many complaints on this issue. Though some less technically aware users might ocnsider it "normal sound".
Upgrading Hard Drive and RAM (if they are user-replacable) are authorized operations that will not void the warranty unless you break something during the upgrade work.
On a related note, when I replaced the drive on my MBP, it suddenly started doing the clicking, right after boot up. It seemed like it only clicked if the drive was not active for a few seconds. This of course should be a longer period of time, e.g. 10 minutes, to click and put the drive in sleep mode. It starts spinning again if required. Extra clicking however can and will kill the drive eventually since it's designed and built for a certain number of those clicks.
The source of the problem was that Apple modfies the firmware of the HDs they include to be compatible with their custom instructions. The drive that I purchased, along with many others are incompatible and that causes the excessive clicking.
The solution was a tool called "hdapm" which some guy wrote (you can Google it) and fixed the problem for me. No more extra clicking at the cost of more battery usage of course since the drive doesn't stop spinnng with hdapm script run at boot time. The tool hasn't been updated since so now on ML, I have to run it manually on reboot using sudo.
Point is, this might be one of those cases were a batch of not faulty, but just incompatible (unmodified) drives went into production.
Either way return and replace is my recommendation too.
Currently Being ModeratedSep 5, 2012 5:45 AM (in response to rrahimi)
Hi. I'm the developer of hdapm. Lots of third party HDDs suffer from this clicking issue. It doesn't mean your HDD is faulty, but it can be rather annoying. Usually it is third party HDDs that do this, however, so it's surprising if an Apple OEM HDD is doing it.
I recently released a new version of hdapm which works better on systems that have multiple HDDs, and also includes an uninstaller in the package. It's been tested with Mountain Lion and you should not need to run it manually on every boot with this new version.
You can get it at:
Currently Being ModeratedSep 5, 2012 5:54 AM (in response to Shootist007)
I mean to say: Apple OEM HDDs traditionally have modified settings/firmware and in my experience do not suffer from the 'clicking' issue[*]. It usually occurs in standard, aftermarket HDDs.
[*] Caused by repeatitive load/unload cycle as the drive enters and exits its low-power state.
Currently Being ModeratedSep 5, 2012 6:21 AM (in response to Bryce McKinlay)
Sorry to disagree with you again but Apple does not load any special firmware on the spinning HDDs they use in any of their computers. They are just standard drives made by any manufacturer, the same as you can buy for multiple vendors. In fact the original drive that came in my MBP is now inside a Windows XP desktop system as the third drive in that system. Working just fine in a home built Win computer running XP. Just need to be formatted NTFS and the partition table changed from GUID to MBR.