Ok, so I have a mid 2007 Macbook 13". I know that Apple claims only up to 2 gigabites (with it coming with two 512k (or something around that number) chips which is wht mine has, the standard). Ifixit is claiming up to 3 gigs for my computer (saying a 1 gig and a 2 gig together should work). So my question is was it just unwritten that my laptop supported 3 gigs? If so what RAM do I need to get for it and if I just got a 1 gig or a 2 gig ram chip and left one of my 512's in would that work (cause I don't really want to be throwing too much money at my computer but if I could just replace one of those 512's with a 1 gig or better yet, 2 gig chip I might). Also, on a slightly unrelated question, is the headphone jack replaceable (if I can even find htat part. Already found a fan for it plus the keyboard of the next macbooks after it that have the itunes controller. Yeah, lots of stuff broken on my computer and since I'm taking it apart deciding to do everythign at once)? I think mine's been iffy for a while (it's been annoying me but it really just occured to me that since I'm fixing everythign else I could fix that. I've taken for granted that that is broken as well). Though I'm not sure I can find instructions on that (ifixit has something about an i/o port frame replacement instructions but not sure that is what I'd need). (I'm so nicknaming my computer frankenmac after all this is said and done. Already replaced the hard drive a while back, heh).