Optical drive or HDD whirring?

[NonLinearEdits]

Hey guys, I'm having this weird issue... When I shut my MBP off, just as the power cuts out theres what sounds like a whirring or something that seems to come from the front of my Core 2 Duo MacBook pro. Theres no disc in the drive and when I boot it up there's a really quick version of the noise almost like soft grinding. Heres a video of it: http://www.youtube.com/watch?v=DdiruPoMzzI&feature=youtube_gdata_player you have to listen closely since its a little quiet... There are no noises emitted from anything when it's actually running. What could it be? It's not a dying HDD is it?

Thanks everyone!

 

[riptideMBP]

well the noise right before the startup chime is a perfectly normal optical drive sound. If you're talking about the noise after the chime, I have no idea what that is... sounds like the result of what I assume to be you performing a hard shutdown.

 

[Ishmumrhmn]

It is because the HDD head or the reader goes off when the system is shut down and vice versa when turning on.

 

[NonLinearEdits]

well the noise right before the startup chime is a perfectly normal optical drive sound. If you're talking about the noise after the chime, I have no idea what that is... sounds like the result of what I assume to be you performing a hard shutdown.

It's that sound right after it shuts down that sounds like a fan coming to a stop with the blades hitting something, but it's in front of the keyboard by the track pad. The second shut off you can hear it better, it also makes a really really brief noise when you turn it on you can hear it but it's really quick