Traduciendo paso 4
Now, hunt down all the little screws on the motherboard and remove them. There are 4 or 5, so if it doesn't want to move, it's probably being held by a screw or two.
Now that all the screws, are gone, slowly lift and remove the motherboard. I say slowly because there are still a few cables attatched to the underside.
Disconnect all cables that aren't soldered on.