The stock fan on the Hyper 212 EVO is rated for 40,000 hours; >1666 days. I'm only getting ~90. I went with the recommendation by koitsu
. I ordered the Noctua NF-F12 PWM rated at 150,000 hours. Cooler Master is sending yet another stock fan that I'll just stick in the junk drawer as a back up.
My Antec 300 does have an opening for HSF brackets, but it's too small to be of any use. I have to pull the board.--
Today's scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality. ~ Nikola Tesla