H100i - Push vs Pull

[nexusmaniac]

Hi All,

 

I've looked through 10+ pages of the watercooling thread and I've googled about but I haven't seen a definitive answer on whether to put fans on the h100i in push or pull?

 

Currently - 

 

Case

NF-F12 - Pulling out

RAD

 

Better?

Case

RAD

NF-F12  - Pushing out

 

Alternate

Case

NF-F12 - Pushing inside

RAD

 

Alternate 2

Case

RAD

NF-F12 - Pulling inside

 

I am asking this because I have the 4670k@ 4.6GHz with 1.227v and it gets hot... Really hot ~90^oC with OCCT, Inte burn test or Prime95, 90^oC is a safe temp but I'm not happy and without using push and pull I just wanted to lower temps without making much more noise.

 

Other info - NF-F12's are at about 1000Rpm, TIM is Arctic MX-4 and the Corsair Carbide Air 540 case

 

Thanks!

 

 

[Oshino Shinobu]

Push is normally slightly better, but the difference is very small. If the air in your case gets pretty hot, then maybe have them pushing fresh air inside. 

[CCap]

Right now i have mine as:

 

Case

Fan (pushing through the rad into the case)

Radiator

 

My CPU temps don't get higher than 50c (at stock) under a gaming load. (Haven't run it under Prime95 yet) 

[WoodenMarker]

It doesn't really matter. Go with whatever goes with the rest of the case airflow. 

[nexusmaniac]

I've just put push pull on both my AIO's and there was barely a degree in difference ahh well

Edit: did make a difference to the AIO on my GTX 780

[Faa]

It really depends how much heat you can get in the rad.

A 4670k isnt gonna dump that much heat as a 3930K@5GHz and there it would make a difference. NF-F12's are really bad to use in pushpull.

Theyre starting to make an electrical whine noise at 70% as you can hear in the vid. Like others said you won't see a temp difference

[nexusmaniac]

It really depends how much heat you can get in the rad.

A 4670k isnt gonna dump that much heat as a 3930K@5GHz and there it would make a difference. NF-F12's are really bad to use in pushpull.

Theyre starting to make an electrical whine noise at 70% as you can hear in the vid. Like others said you won't see a temp difference

The fans in that video aren't nf-f12's and mine don't make any noise like that

I know that (that's physics) but my read stated to get warm to the touch, and as said in the 1st post, my CPU is getting slightly too hot for comfort so I wanted to try and improve temps. Using push pull on my 780's rad dropped the temps by ~4 C though

[Faa]

The fans in that video aren't nf-f12's and mine don't make any noise like that

I know that (that's physics) but my read stated to get warm to the touch, and as said in the 1st post, my CPU is getting slightly too hot for comfort so I wanted to try and improve temps. Using push pull on my 780's rad dropped the temps by ~4 C though

They have the same bearing, happens to nf-f12's as well..

Anyways have you tried to monitor the water temp? So at idle and full load? If there's no difference you don't have a great contact. The backplate doesnt really allow the block to put more pressure, some people just added some washers to have a tighter fit. youtube.com/watch?v=UnWMlcB3nTg