Pull, Push, Push/Pull Explanation

Toggle sidebar Toggle sidebar
A

andos24

Honorable
Aug 19, 2013
52
0
10,630
Hey guys, I was hoping that someone here could explain to me the concept of pull, push, and push/pull. I always get confused when I hear these things getting talked about. Is it pull as in pulling air out of the case or pulling into the case. Same applies with push. Essentially, is pull intake or exhaust. I've looked around but all I've seen are these diagrams that don't really explain much.

Also I'm getting the corsair c70 Vengeance case along with the h100i and was wondering where I should put the radiator and what fashion should I put on the fans. I've read around that I should put the radiator on the top and in a push/pull fashion. I know that I should replace the stock h100i fans and I'm probably going to get the corsair af/sp fans to replace the h100i's stock fans and just put them in my case as well. I would like any advice :).
 
Solution
Darkbreeze
Push pull means that, in the direction of airflow, whichever direction that may be (Intake or exhaust), the first fan is pushing air into and through the radiator while the second fan is pulling air out and away from the radiator. Like this:

2lsfxon.png


In a push, push, pull configuration you have a center fan that is both pulling and pushing. Obviously that's not possible on a radiator unless you have them stacked, but it's used in some air cooled heat sink setups. The push pull configuration is not conclusively better than either push only or pull only. Testing by unrelated third parties have resulted in mixed results with each type of configuration proving to be better using the same fans, heatsinks and...
Sort by date Sort by votes
S

swifty_morgan

Illustrious
Feb 10, 2006
13,566
1
42,960
i find it better to mount the radiator and fans in the top of the cases.......... fans at the roof/radiators under that/fans pulling air from inside to outside.

I do have a set up with dual fans......... same thing........ pulling air from inside to outside.

I found that pulling air in from the outside to inside very inefficient.......... case interior stays hotter. components stay hotter.
 
Upvote 1 Downvote
iam2thecrowe

iam2thecrowe

Glorious
Jul 4, 2010
10,591
21
44,965


i would probably just use the stock fans and see how it runs first, you might be happy with it. Hot air always out of the case, especially if theyre attached to a radiator, do not set up fans to blow it back into your case. Its ok to have a couple intake fans at the lower/front of your case pushing air in, but mostly you want to get the hot air out, air will naturally flow in. As swifty said, my experience is that pushing air in the case will get you higher temps than fans exhausting the hot air out of the case. Negative pressure seems to work better for cooling.
 
Upvote 0 Downvote
A

andos24

Honorable
Aug 19, 2013
52
0
10,630
I'm still kind of confused with the push and pull terminology though. Does push mean it's pushing air out of the system or pushing into the system? Vice-versa with pull.
 
Upvote 0 Downvote
Darkbreeze

Darkbreeze

Retired Mod
Jun 24, 2014
80,414
7,633
176,790
Push pull means that, in the direction of airflow, whichever direction that may be (Intake or exhaust), the first fan is pushing air into and through the radiator while the second fan is pulling air out and away from the radiator. Like this:

2lsfxon.png


In a push, push, pull configuration you have a center fan that is both pulling and pushing. Obviously that's not possible on a radiator unless you have them stacked, but it's used in some air cooled heat sink setups. The push pull configuration is not conclusively better than either push only or pull only. Testing by unrelated third parties have resulted in mixed results with each type of configuration proving to be better using the same fans, heatsinks and radiators so it's a tossup.

Personally, I think if you exactly match the push and the pull fan speeds, or configure your pull fan to be faster than your push fan, it does offer somewhat better results.
 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom