As long as you're not running crazy OCs & don't disable or alter the CPU max thermal limit and similar settings it should be really hard to kill it from cooking the CPU. Even if the cooler somehow fell off the CPU the system should most likely just instantly power off.
If you're really worried about it running a little too warm you could always disable Precision boost etc. so it just runs at the base 3.6..? Even a stock cooler should keep temps low.
They self throttle under standard BIOS settings so it will just drop it's speed up and down to maintain it's max allowable running temp.
