Mac Pro chirp sound?

[speekez]

Lately, I've been noticing a very quiet chirp from my Mac Pro. I only hear it now and then if the room is very quiet. I always hear a bit of purr from my Mac Pro, most likely from the ATI x1900 fan. But this chirp is different It sounds like a little twinkle chime, very faint, and I'm not sure where it is coming from.

I have a Mac Pro 2.66 version.

Anyone else hear it on theirs, assuming you are in a very quiet room and have good hearing

 

[Eidorian]

I remember some mention that the Power Mac G5 made chirps as well. No memory of the cause though.

 

[speekez]

FYI My stock had drive is western digital not seagate

 

[product26]

I didnt have any sort of a chirp until i put in a x1900xt

now whenever i scroll in safari, and other misc things will cause a small chirp sound..

 

[p0intblank]

My PowerBook G4 chirps when I am working in Dreamweaver. I can hear it chirp whenever I type. It's usually only in that application, though... I don't know what causes it.

 

[xpovos]

A lot of PowerMacs had this issue. If memory served, it was tracked down to a misaligned fan.

 

[iberroa]

2009 Mac Pro Chirping Noise

I have a 2009 Mac Pro (Nahalem) and every now and then i hear a chirping noise that i believe is coming from my main 640GB Western Digital Hard Drive.

I've noticed this sound since day one. When i first got the Mac Pro it only had a 640GB WD hard drive. Since then i've added a 1TB WD, 500GB WD, and a 50GB OCZ Vertex2 SSD. I'm still noticing the same sound every now and then. I'll let you guys know if i hear the sound again after i upgrade my 640GB to a 1TB.

 

[JesterJJZ]

My G5 would chirp, sounded like a dying cat to me. It turned out to be one of the hard drives. I still have that drive, works fine.

 

[zorinlynx]

Some drives make a "chirp" or a "beeep" sound when they spin up the platters. It is harmless.

I've noticed Western Digital drives do it, Seagates tend not to, so far.