I ask because i mistakenly ordered a 2GB set from Crucial.com, but when i chose the ram, i chose it for the Core Duo 13-inch Black MacBook, but i have the Core 2 Duo 13-inch Black MacBook system. Is it the same ram? The prices are identical for the 2GB set, so i'm thinking they might be but i am not sure where i can check. The order already shipped, or else i'd just change it. Thanks in advance!