Odd plinking sound

[Haviland]

I received my MacBook Pro (15 inch) this morning, and so far have been very satisfied with my purchase. However, one nagging issue is getting on my nerves.

When I move the computer sometimes on my lap, or when I am typing, I hear a high-pitched plinking noise (sometimes more than one). It is definitely not coming out of my speakers, and sounds as if it is coming out of the base of the laptop. I have put it on a bed and applied pressure to the corners of the machine (with the lid open), and by applying pressure to the bottom two corners (the ones furthest from the screen) I was able to replicate the sounds consistently.

I would just take it to an Apple store to see what they have to say about it, but the nearest one is an incredible distance away. I am hoping that this is something I can fix on my own. If anyone could help me out I would be grateful.

 

[Theclamshell]

I have the same issue with my 15". If i move it or press on the right corner it will also make the noise. I always noticed it but never bothered to have it checked out and my MBP has had no problems.

 

[Yixian]

Not sure if it's the same sound as me but I get a very high pitched kind of "tink tink" when I turn my laptop on it's side, but it sounds almost as if it's made by tiny pieces of metal sliding down the laptop or something... Very odd.

 

[JasonHB]

It is the disk drive head disengaging from the HDD to protect it against impact.

It has a sudden impact sensor which detect sudden movement to protect data

Jason

 

[Eddyisgreat]

It is the disk drive head disengaging from the HDD to protect it against impact.

It has a sudden impact sensor which detect sudden movement to protect data

Jason

/thread

 

[Wafflausages]

I have the same issue with my 15". If i move it or press on the right corner it will also make the noise. I always noticed it but never bothered to have it checked out and my MBP has had no problems.

got this same issue, its totally different from when i move my laptop and hear the HDD though, its more of a short type of sound and its when its on a stable surface. I use my macbook on my lap and try it, and this sound doesnt pop up when i try to recreate it

 

[voyagerd]

I have the same issue on my 15" MacBook Pro, Early 2008. It happens when I have the fans set too high and nothing CPU intensive running and the machine gets cool.