Water cooling CPU with pull set up.

[jwworld]

I understand how Linus likes to use pull because of the ease of cleaning.  One thing though, if your set up is in pull, the air is being drawn from inside the case. Wouldn't the air inside the case be hotter than air coming from outside of the case thus effecting cooling performance?

[Ghost]

It affects it slightly, not enough to warrant changing the airflow of your whole system to do it.

[Jokrik]

I would always feed my rad with cold air from outside whenever i can

Even if i have to put more filters on an exhaust part so that it can be intake

Its a no to little investment change and you'll get more performance

[Ghost]

you'll get more performance

From what I have seen you would only 1-3C decrease on the CPU with a change of airflow direction. It also makes the airflow more complicated because most cases are designed to have flow from the hard drive cages to the back IO panel.

[Parkway Drive]

I use pull on a RX480 and push in an RX240 cooling 3770K @ 4.6GHz, 2x EVGA GTX670 FTW, Maximus V Formula and 4x Dominator GT @ 1866GHz.

My CPU idle's 30°C and max of 65°C under load. GPUs has never ever gone above 50°C on my max overclock.

I'm using BitFenix Spectres for the fans which are definately NOT static pressure optimised at all but are dead silent which I wanted more than performance.

 

I can vouch for pull only setups at least running smoothly with overclocks.

As Ghost mentioned I'm sure the temperature drop would only be a few degrees if it was in push or maybe even another degree or two in push-pull.

I'm sure my temps would improve if I got some NF-F12 or Gentle Typhs but the most important thing above either push or pull is having airflow. I've had my fans completely off before and the temps climb quick.

[jd2195]

I set my water cooling loop up, gou and cpu, with both rads in pull on Linus's advice. I have temperatures of around 28 degrees idle in temperatures of around 20 degrees. So from my experience it will still give very good temperatures.

[warmmilk]

Whether you're pulling fresh air from outside the case or warmer air from inside isn't affected if your fans are in push or pull. Lets say you have a rad in the roof of your case if your fans are blowing air out of your case it really doesn't matter if they're on the push or pull side, either way its taking the air inside the case. You can flip the fans around so they pull air in from the roof instead of exhaust, but again, that's not a push or pull thing. Or you can put the rad in the front or bottom of your case and pull fresh air in that way.