J'ai trouvé ceci :
July 18, 2008 at 5:24 pm
So I bought one today from the Canada Computers in downtown Toronto. I've opened mine up too. People have been commenting about the ram. The ram on the top of the mother board is soldered directly and is non removable. However, it comes with an empty SODIMM slot on the bottom the MOBO which supports an additional 512MB or 1GB of ram. It is a pain in the neck to install, but I've done it and it works, and I'm now running with 1.5GB of ram.
Just a couple of tips if you want to try yourself:
1) Involves connecting/disconnecting tiny fragile parts. Also not much room for fingers to avoid electrostatic things. Only proceed if you are competent/have $400 to burn.
2) The very first step is to take the keyboard off. There are three clips at the top to start with. No screws. Lift the ribbon connector flap on the MOBO to deconnect it.
3) Next unscrew all visible screws. There are two hidden screws under the rear rubber pads on the bottom. Finding these caused me some grief. In total, 8 on the bottom, and a bunch under the keyboard.
4) Unconnect the touch pad ribbon. It is small.
5) Lift the top off. There are a few clips. Lift from the front towards the back. The Fancy cylinder things on the sides near the screen hinges are completely decoratory, which also caused me some grief.
6) Unscrew the MOBO, unplug the speaker cord from the MOBO. Unplug the ribbon on the right. I think it goes to a flash controller board. Also, the power connector is attached to the bottom of the MOBO; unplug it (its on the lower right).
7) Lift the MOBO right to left. You will see the SODIMM slot on the bottom. Pop `er in. 8) Good luck remembering where all the screws went. Remember the MOBO has a tab top left that needs to go back in first.