30 minutes - 1 heure
A lady from my church was distressed because her iMac would not turn on. Apple diagnosed it as a bad power supply but did not have parts to fix it.
Repair was a breeze with the help of the Ifixit tutorial.
Make sure to have all the correct size bits before starting. I had to make 2 trips out upon starting b/c I didn't realize I had no T8 or T6 torx bits.