280mm at the front vs 240mm at the top with 2x 140mm fans at the front?

[RRGT19]

Hi,

 

1. NZXT x62 (280mm) at the front
2. NZXT x52 (240mm) at the top with 2x 140mm fans at the front (Corsair ML140)

Case: Define C

CPU: i7-7700k

 

Which is better?, better temps for my CPU?.

[Tricky12321]

You wont see much of a difference, but i would go for the 240 in the top, since it makes it A LOT easier to run your tubes if you are going to use AIO. If its Custom, i would go for the 280 in the front.

[ARikozuM]

Number 2 offers more directed flow. 

 

The AIO won't offer cooling for your GPU.

[RRGT19]

2 minutes ago, Tricky12321 said:

You wont see much of a difference, but i would go for the 240 in the top, since it makes it A LOT easier to run your tubes if you are going to use AIO. If its Custom, i would go for the 280 in the front. Also what case is this for?

Case: Define C

CPU: i7-7700k

[Tricky12321]

Ye, i saw that after

[RRGT19]

3 hours ago, ARikozuM said:

Number 2 offers more directed flow. 

 

The AIO won't offer cooling for your GPU.

 

3 hours ago, Tricky12321 said:

Ye, i saw that after

so, is better to buy the 240mm because is cheaper and that's it

won't be a huge different compared to the 280mm

[ARikozuM]

4 minutes ago, RodoGodo19 said:

 

so, is better to buy the 240mm because is cheaper and that's it

won't be a huge different compared to the 280mm

No. It's because you have more options for balancing the airflow.

[RRGT19]

Just now, ARikozuM said:

No. It's because you have more options for balancing the airflow.

got it

240mm at the top

2x 140mm corsair ml pro fans at the front

 

thanks

[wildgg]

crazy to me how people say '' you won't notice a big difference''.

actually it can make up to a 10C+ difference between a front and top mounted radiator. 

 

this will depend very much on what style GPU you have, blower vs open air cooler.

 

a front mounted radiator will not heat up the inside of your case more then a open style gpu cooler, so if you have a open style gpu cooler with a top mounted rad the hot air will effect your cpu temps allot, a front mounted radiator will not effect GPU temps as much.

 

if you have a blower style gpu cooler on your card it does not matter where the radiator is because hot air will be pushed out of the case regardles.

 

you can look up channels like jayztwocents and bitwit for more videos on this subject.

 

So to answer OP question for better cpu temps go with a front mounted radiator.

 

[RRGT19]

Just now, wildthing said:

crazy to me how people say '' you won't notice a big difference''.

actually it can make up to a 10C+ difference between a front and top mounted radiator. 

 

this will depend very much on what style GPU you have, blower vs open air cooler.

 

a front mounted radiator will not heat up the inside of your case more then a open style gpu cooler, so if you have a open style gpu cooler with a top mounted rad the hot air will effect your cpu temps allot, a front mounted radiator will not effect GPU temps as much.

 

if you have a blower style gpu cooler on your card it does not matter where the radiator is because hot air will be pushed out of the case regardles.

 

you can look up channels like jayztwocents and bitwit for more videos on this subject.

 

So to answer OP question for better cpu temps go with a front mounted radiator.

 

I have a GTX1080 Founders Edition

 

I thought that having 2x 140mm fans at the front will help a lot to decrease temps of the CPU, that air can go to the radiator at the top as well.

is not that way how it work?.

[ARikozuM]

Just now, RodoGodo19 said:

I have a GTX1080 Founders Edition

 

I thought that having 2x 140mm fans at the front will help a lot to decrease temps of the CPU, that air can go to the radiator at the top as well.

is not that way how it work?.

You need fans on your radiator and the case for best airflow. If you have the radiator with fans up top adding 2 to the front will help cool the case down.

[RRGT19]

1 minute ago, ARikozuM said:

You need fans on your radiator and the case for best airflow. If you have the radiator with fans up top adding 2 to the front will help cool the case down.

I have a Define C case from fractal design.

 

I would like to install the radiator at the top.

So, the fans of the radiator should be on top or on the bottom of the radiator?, and.. why...

I'm new at this stuff

 

My pc: https://pcpartpicker.com/b/gn7WGX

[ARikozuM]

10 minutes ago, RodoGodo19 said:

I have a Define C case from fractal design.

 

I would like to install the radiator at the top.

So, the fans of the radiator should be on top or on the bottom of the radiator?, and.. why...

I'm new at this stuff

Put the fans in [push [(air through the radiator)] with the radiator beneath the fans. This will help keep dust from being a pain to clean as the dust will accumulate of the fins rather than between the fan and radiator. 

[wildgg]

1 minute ago, RodoGodo19 said:

I have a GTX1080 Founders Edition

 

I thought that having 2x 140mm fans at the front will help a lot to decrease temps of the CPU, that air can go to the radiator at the top as well.

is not that way how it work?.

so your original question was, what option is better for cpu temps.

since you have a founder edition card (blower style cooler) it would be best to go with the 280mm rad since its bigger and will cool your cpu better.

 

now since you have a blower style card it would not matter where the radiator goes, so go with the bigger radiator.

[wildgg]

1 minute ago, ARikozuM said:

Put the fans in push (air going out of the case) with the radiator beneath the fans. This will help keep dust from being a pain to clean as the dust will accumulate of the fins rather than between the fan and radiator. 

wouldn't that be pull?

[RRGT19]

Just now, ARikozuM said:

Put the fans in push (air going out of the case) with the radiator beneath the fans. This will help keep dust from being a pain to clean as the dust will accumulate of the fins rather than between the fan and radiator. 

like this example?

(given by another member on this forum on another thread)

 

[ARikozuM]

Just now, wildthing said:

wouldn't that be pull?

Same difference to me. I always think of where the air is going in relation to the case not the radiator as I don't watercool.

[ARikozuM]

Just now, RodoGodo19 said:

like this example?

(given by another member on this forum on another thread)

 

 

Yes. That's much easier to clean. Same applies for air-coolers. 

[wildgg]

2 minutes ago, ARikozuM said:

Same difference to me. I always think of where the air is going in relation to the case not the radiator as I don't watercool.

well the reason it's called push or pull is because air is pushing through the radiator or getting pulled through the radiator.

you can't say push because the air is going outside of the case, that would be miss information.

 

all i'm saying is you can't use the terms push/pull for airflow indication.

[ARikozuM]

5 minutes ago, wildthing said:

well the reason it's called push or pull is because air is pushing through the radiator or getting pulled through the radiator.

I'll remember that for next time.

[Mick Naughty]

Always have fresh air coming in. Rad up top. Don't let a horrible gpu desicion ruin a build. Having a blower is best anyway. Won't heat up everything else in the case, won't effect the aio temps either. 

 

2 140s in the front would be easier to balance against  2 120s on a rad, a single 120 exhaust and the blower onthe car. 

[For Science!]

On Wed Apr 19 2017 at 2:09 AM, RodoGodo19 said:

like this example?

(given by another member on this forum on another thread)

 

I would recommend how I have it in the picture above. I've actually now added a thermal probe (2 pin through z270 mobo) onto the GPU so that the two intake 140mm fans ramp up according to GPU temperature through the UEFI BIOS (desirable for me because I use a lot of Linux as well)

 

Getting the intake fans to react to GPUs is more desirable for blower cards in the context of balancing airflow. I have my intake fans to move about the same amount of air as the H100i v2 but during gaming or scientific calculations the GPUs start to kick in resulting in more exhaust than intake (in my system the power supply also contribute), this negative pressure in the case will promote more dust build up.

 

By getting the intake fans to react to GPU temperature  (and therefore to the GPU fan speed) it is possible to maintain  positive air pressure in the case for most scenarios.

[RRGT19]

1 hour ago, For Science! said:

I would recommend how I have it in the picture above. I've actually now added a thermal probe (2 pin through z270 mobo) onto the GPU so that the two intake 140mm fans ramp up according to GPU temperature through the UEFI BIOS (desirable for me because I use a lot of Linux as well)

 

Getting the intake fans to react to GPUs is more desirable for blower cards in the context of balancing airflow. I have my intake fans to move about the same amount of air as the H100i v2 but during gaming or scientific calculations the GPUs start to kick in resulting in more exhaust than intake (in my system the power supply also contribute), this negative pressure in the case will promote more dust build up.

 

By getting the intake fans to react to GPU temperature  (and therefore to the GPU fan speed) it is possible to maintain  positive air pressure in the case for most scenarios.

I like a lot your build, I will do the same, exactly the same position