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Small cardboard part left after closing MBP (AB990SM/A)

M

macstuart

macrumors newbie
Original poster
Dec 23, 2010
6
0
Yesterday I changed the RAM of my Macbook Pro 13" (AB990SM/A)
I successfully expanded it from 2 to 8GB, everything works fine so far.

However after closing the MBP, there was a small piece of cardboard left on my table. I made a photo of it: http://i52.tinypic.com/2d15tf6.jpg
So I opened it again and tried to find where this piece belongs to.

After searching about an hour plus searching the internet up and down for another hour I could not find any useful or logical information about this piece.

I ended up closing the MBP and start to work without the piece, but I'm worried. Perhaps some of you have experience with this?
 
yes, perhaps, but I was really not able to find where the piece of puzzle fits.
maybe someone has a photo of can explain?
 
Have you reviewed the various disassembly/reassembly guides on ifixit.com?

I glanced there but couldn't find the part # you listed; but I'm a newbie to the Mac world so I'm not familiar with models to part #'s.
 
yes I had a look there before I posted here, but couldn't find a photo containing the part.
 
Does it go any where near the drive?

The rounded corners tell me it's made to fit inside an enclosure of sorts.

Not much help. Sorry.
 
macstuart said:
Yesterday I changed the RAM of my Macbook Pro 13" (AB990SM/A)
I successfully expanded it from 2 to 8GB, everything works fine so far.

However after closing the MBP, there was a small piece of cardboard left on my table. I made a photo of it: http://i52.tinypic.com/2d15tf6.jpg
So I opened it again and tried to find where this piece belongs to.

After searching about an hour plus searching the internet up and down for another hour I could not find any useful or logical information about this piece.

I ended up closing the MBP and start to work without the piece, but I'm worried. Perhaps some of you have experience with this?
Click to expand...

The first letter of the model number is throwing people off - it should be an 'M', which makes your MBP a 2009 13.3".

The curved shape of the cardboard reminds me of the cutout on the logic board for the fan shroud (see http://www.ifixit.com/MacBook-Parts/MacBook-Pro-13-Inch-Unibody-2-53-GHz-Logic-Board/IF163-006 for a photo) but I can't figure out where the two screws that were contacting the cardboard would fit on the logic board. (on the top, towards the right and on the bottom at the rim of the curve - note the indentations from what I'm presuming was a screw head)
 
It is indeed small, like max. 40x40mm
I have tried several positions to put it, without a finding one that makes sence.
It looks looks like an isolator or a cushion.
It fell on the table somehow when I cleaned the bottom panel of the mbp.
It drives me nuts...
 
It would probably be more useful to take a photo of it beside, or on, your MBP with the electronics exposed so we have context, and include a ruler.
 
first, sorry for the confusion with the product number! :D

yes it's a 2009er 13.3 inch with 2.26 GHz C2D

@ouimetnick I guess that it is, rather than the fan
but where the heck is it placed correctly

i checked these photos not finding the piece, nor a proof that it isn't belonging to the mbp, which i doubt since i opened it on a clean, blank table with no things laying around.
http://www.ifixit.com/Device/MacBook_Pro_13"_Unibody_Mid_2009
 
I'm fairly sure it sticks to the inside of the bottom cover to prevent the metal touching a particular part of the machine's internals.
 
ouimetnick said:
It prevent the logic board from shorting out if the bottom case is pressed too hard.
Click to expand...

That reminds me - it's hard to find photos of this, but the MBP bottom case (the plate you remove first) has some insulating bits glued (?) to it that are roughly this shape, for the exact reason oumetnick suggested. Can you post a photo of the *inside* of the bottom case? I suspect this bit has either fallen off or was an "extra" that ended up in the case...
 
I dont think there is anything on the inside of the bottom case.

Take a look at my YouTube Videos, as I open the system up when upgrading my SSD and RAM etc. Maybe you can spot it in my video?
 
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