Basically, I built this PC in April of 2015. So it's about a year and a half old.
http://pcpartpicker.com/user/jnmatthews9614/saved/ZV23CJ
I've seen some rule of thum like %10 when I first turn it on, then 5% for every month until 6 months, then 10% for every 6 months after that. If that is...