Apple MacBook Pro (Early 2008) - Manual (Page 39)

Chapter 3 Boost Your Memory 39
3 If you need to remove a memory card that’s already installed in the slot, spread the
tabs in the slot away from the notches in the memory card. The card should pop up
slightly. Lift the memory card to a 25-degree angle and then gently slide the card out
of the memory slot.
4 Insert the memory card at a 25-degree angle. Line up the notch in the card with the
small tab in the memory slot and slide the card into the slot until the gold edge is
almost invisible. Then firmly push the memory card into the memory slot. You might
feel some resistance.