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Mac Pro Hard Disk Noises
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Mac Enthusiast
Join Date: Jun 2001
Location: Lancaster, CA
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I recently purchased and installed a 2nd Hard disk for my Mac Pro. I got one of the 1TB Seagate Barracuda 7200.11 SATA II drives and installed in in /dev/disk0. I moved the 250GB drive which came with the machine originally to /dev/disk1. I'm noticing every now and then a clicking sound followed by a whirring sound made by the disk as if the drive is spinning down.
It does this pretty frequently, and I'm wondering if others have experienced this at all? I find it kind of annoying for whatever reason. Is this normal? Does this have something to do with the setting in the Energy Saver System Preference? I was just curious, because I didn't notice this or hear the drive spinning down at all with my original 250GB drive, and didn't know if there was possibly something wrong.
Thanks. 
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Moderator  Join Date: May 2001
Location: Berkeley, yosh!
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Clicking sounds indicate your harddrive is dying.
Buy a new harddrive now. Back up all your data! Now!
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I don't suffer from insanity, I enjoy every minute of it.
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Forum Regular
Join Date: Jan 2008
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Not on my new MacPro (as it hasn't shipped)
but my old G5....i get a clicking sound while Mail is running. Only when Mail is running. I assume the Hard Drive is failing too, but why would it only click during Mail?
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MAC PRO: Two 3.2GHz Quad-Core Intel Xeon 5400 processors
NVIDIA GeForce 8800 GT with 512MB of GDDR3 memory
1600MHz, 64-bit dual independent frontside bus
16 Gigs (4x4) of 800MHz DDR2 memory
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Moderator Join Date: May 2001
Location: Berkeley, yosh!
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Either that clicking sound is present all the time or not. If it's just present when you use a different app, then this does not necessarily imply your harddrive is failing. If it is, then it doesn't make any difference which app you're using.
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I don't suffer from insanity, I enjoy every minute of it.
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Mac Enthusiast
Join Date: Jun 2001
Location: Lancaster, CA
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I can't imagine the clicking sound would be a symptom of a hard drive dying, as this hard disk is only 4 days old at this point. I have a backup of all my files on the second hard disk that I moved to /dev/disk1 which use to be my primary drive.
There must be some other reason for this. It's actually only one click followed by a whirring sound like the drive is spinning down..
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Moderator Join Date: Apr 2005
Location: Cambridge, UK
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Sounds like it might be parking its heads and spinning down. Try downloading the SeaTools CD and running that to see if it turns up any problems.
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Macbook C2D 2Ghz/2GB RAM/250GB HDD/10.5.2 - In Repair...
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Forum Regular
Join Date: Jan 2008
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One huge problem facing new computer owners is that TechTool Pro and DiskWarrior both don't support the new MacPro's released in January.
I wish apple would give these companies at least 1 computer to test their software on so that day 1, support is available.
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MAC PRO: Two 3.2GHz Quad-Core Intel Xeon 5400 processors
NVIDIA GeForce 8800 GT with 512MB of GDDR3 memory
1600MHz, 64-bit dual independent frontside bus
16 Gigs (4x4) of 800MHz DDR2 memory
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Mac Enthusiast
Join Date: Sep 2001
Location: san jose, ca
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haven't mac pros always had some issues with seagate drives? i remember similar reports back when the woodcrest MPs were relatively new.
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not all who wander are lost.
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Moderator Join Date: May 2001
Location: Berkeley, yosh!
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Neither TechTool nor DiskWarrior can fix hardware problems. Random clicking is what a dying harddrive sounds like. If you test the harddrive extensively, it will stress it -- not a good idea unless you have a backup.
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I don't suffer from insanity, I enjoy every minute of it.
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Forum Regular
Join Date: May 2007
Location: Canada
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Originally Posted by Neo.cmg 
It's actually only one click followed by a whirring sound like the drive is spinning down..
If it only clicks once when you haven't used it for a bit, then it probably is just spinning down. Try using the drive after that happens. It should whirl up and click again.
However, if you hear it making clicks while it's in use or it sounds like grinding or scraping, it's trouble.
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Addicted to MacNN
Join Date: Jan 2001
Location: The Sar Chasm
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Have you unchecked the checkbox in System Preferences > Energy Saver... Put the hard disk(s) to sleep when possible? If not, the sound might be your drive waking back up when it needs to be accessed.
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We are indeed drifting into the arena of the unwell.
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Mac Elite
Join Date: Mar 2003
Location: California
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Fresh-Faced Recruit
Join Date: Apr 2008
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hurry up with the back and don't use it anymore for important data. it's very likely to loose it soon.
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Forum Regular
Join Date: Jan 2007
Location: Minnesota
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Originally Posted by Neo.cmg
I recently purchased and installed a 2nd Hard disk for my Mac Pro. I got one of the 1TB Seagate Barracuda 7200.11 SATA II drives and installed in in /dev/disk0. I moved the 250GB drive which came with the machine originally to /dev/disk1. I'm noticing every now and then a clicking sound followed by a whirring sound made by the disk as if the drive is spinning down.
It does this pretty frequently, and I'm wondering if others have experienced this at all? I find it kind of annoying for whatever reason. Is this normal? Does this have something to do with the setting in the Energy Saver System Preference? I was just curious, because I didn't notice this or hear the drive spinning down at all with my original 250GB drive, and didn't know if there was possibly something wrong.
Thanks.
The Mac Pro will spin up and spin down your internal HDDs all day. Normal activity. Something to note: Your Mac Pro will not spin up your drives at once so you may experience a lag if you need something from one of the drives while your Mac spins up the drives.
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Fresh-Faced Recruit
Join Date: May 2004
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Random loud clicking is usually a bad sign, but it's actually something else in a lot of modern Seagates. I've got one that does this and I found it a bit annoying; it's some sort of calibration that it does to extend the drive's life called STIR (Seek To Improve Reliability). I'm not sure if there's a way to disable this, perhaps e-mail Seagate's tech support and ask?
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Posting Junkie
Join Date: Oct 2005
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Why would you want to disable a reliability increasing feature?
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1.8Ghz C2D MacBook Air, 64GB SSD, external SuperDrive, 23" Cinema Display, Apple Aluminum Keyboard, MS Laser Mouse 6000
2.5Ghz C2Q Desktop, 4GB DDR2-800, nVidia 8800GTS512, 42" Vizio FHDTV, Apple Aluminum Keyboard, MS Laser Mouse 6000
Mac update estimates: MacBook Pro 3Q08 (2.6/2.8Ghz+Cantiga); MacBook 4Q08 (2.5Ghz); MacBook Air 3Q08 (45nm); Mac Pro/Xserve 4Q08 (Nehalem); iMac 1Q09 (3+Ghz 45nm); Mac mini 2Q08 (2.2Ghz 65nm).
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Fresh-Faced Recruit
Join Date: Mar 2006
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Originally Posted by mduell
Why would you want to disable a reliability increasing feature?
Because as he already said...
Originally Posted by ManxStef
I've got one that does this and I found it a bit annoying
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Fresh-Faced Recruit
Join Date: Mar 2006
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