MacBook Pro RAM upgrade: new noises at startup

[Chrysippus]

I've just bought a MacBook Pro (mid-2012, 13") and this morning I installed 16GB of RAM in it.

The computer recognizes the RAM and the improvement in performance is obvious. (I edit audio and photos.) There is, however, a new noise at startup. It is just a small click or rattle, and everything appears to be functioning correctly, but obviously I'd prefer either to eliminate it or at least to know what's causing it.

I've recorded and uploaded the sound (just a few seconds long) here, in case anyone wants to hear it: https://soundcloud.com/user617108725/startup-noises

Did I reattach the bottom plate incorrectly? Is a screw loose? Could something be seriously wrong with the machine?

Thanks for any help you can give someone who has recently made the switch to a Mac.

All my best,

--Chrysippus

 

[MisterKeeks]

That just sounds like the optical drive to me.

 

[duervo]

Sounds like the SuperDrive to me. More specifically, like a disc is stuck inside it.

 

[Chrysippus]

That just sounds like the optical drive to me.

Thanks very much for taking the time to help.

It sounds like a routine/standard noise to me; the only reason I'm slightly worried is that the sound didn't happen before I upgraded the RAM. I'm perfectly happy to live with a small noise at startup, but I do want to make sure I didn't damage anything.

All my best,

--Chrysippus

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Sounds like the SuperDrive to me. More specifically, like a disc is stuck inside it.

There is no disc in the drive.

 

[MisterKeeks]

Thanks very much for taking the time to help.

It sounds like a routine/standard noise to me; the only reason I'm slightly worried is that the sound didn't happen before I upgraded the RAM. I'm perfectly happy to live with a small noise at startup, but I do want to make sure I didn't damage anything.

I don't think you have anything to worry about.