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Occassional Thud + Hard Drive Whir?

I purchased a stock 1.83 Macbook at an Apple Store last weekend and think that it's a great machine in all regards but one. No overheating, no whining, heard the moo once faintly when the fans were getting really fired up... the keyboard and display are great, small and lightweight, putting in 2 GB of ram makes it fly, etc.

Unfortunately, it's been plagued with a strange phenomemenon: occasionally, the computer emits a small thud and the hard drive spins for a split second. It happens once every 30 seconds to 3 minutes, just often enough to be really annoying in a quiet room. This is not the computer accessing anything; the computer will be sitting totally idle on the desktop and just beep + whir. It happens when idling/running in safe mode and still occurs after doing both an archived reinstall of Tiger and a total reformat and reinstall of Tiger.

It happens both before and after the Apple software updates and occurs when idling, browsing, chatting, etc. It happens when Bluetooth and Wireless are disabled, and all external devices are unplugged from the computer. It is fairly quiet, so it's not an issue when listening to music, but muting the volume doesn't solve the problem, leading me to guess that it might be a hardware problem. This is, however, just a guess.

I spent a few hours on the phone with different AppleCare representatives, including an expert to whom I was referred after calling in 3 times about this same issue, but none of them could come up with any other instances of this occuring or any real insight other than "Take it into a store and have someone look at it, since the problem is difficult to diagnose over the phone." I do plan on taking it to an Apple Store but was wondering if anyone else experienced this problem and found a solution? Thanks in advance.

Macbook 1.83 Mac OS X (10.4.6)

Posted on Jun 17, 2006 7:56 PM

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Posted on Jun 17, 2006 8:04 PM

I say just take it to the store. Tell them you're afraid your hard drive is going to blow up or something. "I think it's going to crash. Boo Hoo..." See if they will have it replaced for you.

Good luck!
75 replies

Jun 24, 2006 5:24 AM in response to LuckymeLuckymud

Something strange about this "tick" sound. This morning I was using my MacBook for almost 4 hours just on the net and email and not once did it make that sound.

I shut it down and went out for the day and since turning it back on the "tick" has returned. I'm not doing anything different than I was this morning. I noted that if I'm typing for example the sound never happens, but when I stop it reappears.

Has anyone tried resetting the PRAM or anything to see what happens? I might give it a go.

Jun 24, 2006 10:41 AM in response to AppleTalker

Yep, I notice the same thing. It never happens when I'm typing. As Satoru mentioned, this may be because while you are typing, the HD is writing. Then when you stop, it gets a chance to rest -- and then it parks the head, which makes the noise.

But, yes, I also notie that some days, I can be using the computer and won't hear the sound for hours, and then all of a sudden..."tink"

Jun 24, 2006 3:45 PM in response to AppleTalker

All right, maybe someone try installing OSX on an external HDD and see if that'll cause the click? Optimally, someone would swap the HDD, see if the click persists in the new drive AND boot off of the old drive connected via FireWire and see if the click persists. That should really narrow it down. Personally, I think it's firmware related to the internal Serial ATA controller, so I predict that

(1) You won't hear the click when booting off an external HDD, regardless of what drive you use (including the one that is clicking right now) and;

(2) The click will persist with the internal drive even after you swap it to a new one.


I'd try this right away, if only I had an external enclosure for a Serial ATA drive . . .

Jun 26, 2006 4:28 PM in response to AppleTalker

Unfortunately, it has. It was quiet for a while, though.... I really don't know what triggers it, although I guess I will tend to notice it much more at night, when it's quiet (as opposed to now, during the daytime, when ambient noise will tend to obscure the sound). But when it came back, it was back in full force, clicking every 6-7 seconds.

Occassional Thud + Hard Drive Whir?

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