Hello! I've received an old 2008 black Macbook with only 1GB of RAM and I need to upgrade its RAM because I use sample-based software. Now that I read that any 4,1 Macbook can support up to 6GBs of RAM I wonder what would be closer to optimal: - Preserve 1GB in one slot and insert a 4GB stick into the other. - Discard the 1GB stick and get 2 2GB sticks to put into each slot. I don't have enough money to buy the whole 6GB, plus I've read that it doesn't really change performance that much. Please, help me with this one. BTW, just out of curiosity: has anybody tried inserting more RAM into these 4,1 Macbooks?