My mac would not turn on. I checked the power cord and outlet and they were all fine. The Apple store said that since it was five years old that it was a "vintage" and they wouldn't be able to help me in any way.
I found this sight and ordered a new power supply to put in it. The step by step photos and instructions were great! It just took a little bit of time, but I now have my mac back and it didn't cost me an arm and a leg.
I would order the torex screwdriver if you don't have one. I have a set, but they were all too big. I then had to go on a hunt to find the T6. Lowes smallest one was a T7. (So close, but not small enough.) When I did find it, I paid more for it at the store than I would have if I just bought it from here.