So I got my new computer, a Mac, yes I step in, first because i'm curious and second because I need a Mac environment to develop some Iphone applications and I was tired to fight to install Snow Leopard on regular computer. I gave my Asus Eeepc 1000HE to my mum so I needed to buy a new computer. I choose a MacBook Unibody, the new one with 2gb of ram, as soon as I got it I installed Windows 7 with bootcamp on it and I wanted to make some new VM to work but 2gb memory was clearly not enought. So I bought 2x2gb OCZ (OCZ SO-DIMM DDR3 2 x 2 Go PC8500) and open my MacBook to change that : There are 8 screws to open this computer : The I add to unclip the back, and it came by itself, now you can see the hard drive and memory module above These are the Samsung memory module The second one is under The new ones in their package Here we go It fits :) And this is it, putting back the bottom of the MacBook and boot the computer up [flash http://www.youtube.com/watch?v=XL-4aYu3ioI]