You're referring to a couple things here. First of all resetting power management cannot fix a hardware problem. It may fix a couple specific glitches. It simply won't fix any of this. It sometimes fixes long bootup times if the boot order is incorrect. SMC fan control shows 0 rpm, because it can't get a reading. Your macbook uses a fan daemon. If it cannot get hardware readings, it sets the fan to max to avoid hardware damage. SMC fan control has no readings to go by, so...
10/5/15 at 1:21am