Macbook Pro Metallic Noise Near Track Pad and Middle Bottom Case

[vbman213]

I know this has been discussed numerous times before (documented on blogs, youtube, etc.)

http://tenonedesign.com/blog/fix-your-macbook-pro-like-a-champ/

I really don't want to remove it and the idea of putting tape in a two thousand dollar computer is pathetic. Will Apple replace my bottom case? They can try reseating the bottom case all day and it won't get any better. Trust me, I've tried. I even follow their exact instructions for reseating the bottom case.

Otherwise, what is the difference between these parts (Aside from the massive price difference: ~$140 vs $60:

http://www.powerbookmedic.com/MacBook-Pro-15-Unibody-Bottom-Case-p-17326.html

and these parts:

http://www.ebay.com/sch/i.html?_trksid=p5197.m570.l1313&_nkw=a1286+bottom+case&_sacat=0&_from=R40

What's weird about those "direct from china" parts is that they have NO engravings on the bottom. I know a bottom case replacement doesn't have your serial number on it (it is supposed to be written on the inside of the case with a sharpie, so I've heard). But do official bottom case replacements from Apple have the model #, federal regulatory insignias, etc?

 

[Brettka7]

In the newer MacBooks there is a piece of (conductive?) foam there, just put some tape in and forget about it.

 

[vbman213]

In the newer MacBooks there is a piece of (conductive?) foam there, just put some tape in and forget about it.

Just checked several high-res pics from iFixit and I'm not seeing what you're describing? Source?

 

[Brettka7]

Just checked several high-res pics from iFixit and I'm not seeing what you're describing? Source?

Source, I've removed my mid-2012's bottom case. The foam is attached to the piece that is removed in the "fix." It is a very thin piece, but enough to stop the rattle.