Good Afternoon,

I recently ordered the EVGA CLC 280 and since I have never installed something of the sort before, I decided to watch some YouTube videos and came across a contradiction on two videos posted by EVGA.
 
In this video, the person installing the cooler clearly states that the radiator is to act as an exhaust pulling air from the fans and through the radiator. However, he proceeds to install the fans towards the outside of the case and the radiator towards the inside. From my understanding, that would pull in colder air from outside of the case and push it through the radiator (heating the air up) and pushing it inside the case. Would that not be bad for the temperatures of other components within the case such as the GPU and HDD? Since the air would be heated up by the radiator? In the video he also de-attached the fans from their original position and reattached them within the case. In doing this, did he swap the orientation of the fans? In other words, after he made this swap, do the fans still pull air into the case or do they pull air from within the case outside?
 
In the other video posted by EVGA, found here: the person installing the cooler does not change the orientation of the fans or unscrew them, but simply places the radiator fans down into the top of the case. From my understanding, this would pull air from inside the case to outside which sort of makes sense to me aside from the fact that the air inside the case would be warm air from other components of the PC such as GPU so I don't understand how this would cool the cpu.
 
Basically, the only explanation that makes sense to me is that in the first video when they removed the fans from the radiator and installed them on the other side of the radiator, they swapped the orientation of the fans which would cause them to still pull air from within the case. That is what would make both of the installations consistent however, in the first video, the person installing the fan clearly states that the fans would pull air from outside to inside the case.
 
So these are two contradicting videos both posted by EVGA which really confuses me in terms of installation. Would really appreciate any advice on what the correct method of installation is and what type of mehcanics I should be going for with the radiator (pulling warm air in from the case or pulling cooler air from outside the case)

Thank you!

Really it doesn’t matter that much if it’s in push or pull. The airflow is the fans will be about the same. In one case your drawing cool air from the room across the radiator to cool it but then that same air is heating up the inside of the case. The other is taking the hot air from the case and pushing it across the radiator and out into the room. In modern cases with good airflow the difference isn’t really that much.

Someone will probably post that it would be one way or the other and link a graph showing a huge 1.2f difference and that same person probably owns a brush for cleaning the dirt off of mushrooms because rinsing them off will water log them...