Optimal Air Flow Cooling?

[Nanook]

I have always not been comfortable having a rad in the front intake. To me it just seems to preheat the air coming into the case. If there are any other rads serving as exhaust, then they don't get fresh ambient air going through them. Instead they get case air that is already preheated from the front rad. Plus this preheated air serves to make other components on the motherboard hotter like the VRM's or capacitors. I thought and thought about a solution to avoid this preheated front intake air and what I came up with is the configuration below.

 

 

 

This way no exhaust from anywhere is poured into the case only exhaust out the top and back with copious amount of fresh air coming in through the unobstructed front fans. This should make the air inside the case basically the same as ambient. Ergo then the top and rear exhaust rads get fresh ambient air passing through them.

 

However, I have not been able to find a single case with good air flow that has both 360 top and rear rad capability.

 

So, is my thinking correct about avoiding front rad preheated air coming into the case and is this a good solution to that, or am I making an issue out of a nonissue?

 

Thank you

[Dedayog]

How on earth will a case have rear rad capabilities?  

 

Front rads are fine, and yes they do preheat the air but that means the CPU gets cooler air than the GPU.  Which is what some want.  

 

You're making an issue out of a non-issue.

[emosun]

8 minutes ago, Nanook said:

or am I making an issue out of a nonissue?

yeah that.

it's a computer not a sky scrapper. the air doesn't sit in the machine long enough to make a difference where the rad is.

Note that most every car on earth is blowing hot air directly from the rad onto the engine and they all work just fine. You;re cooling the machine with water not air , wouldn;t even matter if the air in the case was hot anyway as long as the water is cold.

[Jeppes]

Do you really need 2x360?

 

I think at least Phanteks Enthoo pro2 fits those as exhaust in roof, side or bottom.

 

[Nanook]

3 minutes ago, emosun said:

yeah that.

it's a computer not a sky scrapper. the air doesn't sit in the machine long enough to make a difference where the rad is.

Note that most every car on earth is blowing hot air directly from the rad onto the engine and they all work just fine. You;re cooling the machine with water not air , wouldn;t even matter if the air in the case was hot anyway as long as the water is cold.

Yea, I agree it is mostly a nonissue. But would the configuration I posted (if a 360 rear rad was possible) in a good air flow case, then would it make even 1 degree cooler temps? Why not let us aim for optimal, even if it wont matter much.

[Nanook]

5 minutes ago, Jeppes said:

Do you really need 2x360?

 

I think at least Phanteks Enthoo pro2 fits those as exhaust in roof, side or bottom.

 

Absolutely not lol. A GPU with good air cooling and a NH-D15 will work fine. But why not explore new possibilities?

[emosun]

6 minutes ago, Nanook said:

would it make even 1 degree cooler temps?

no probably not.

what you aren't factoring in , is all you've done is take the now hot exhaust air the computer produces and are now blowing it through the radiator. So no , your solution wouldn;t really gain anything and might actually be worse.

 

You want a perfect setup? put the rad entirely outside of the case. cool air goes in , hot air is outside the case. the perfect place for your cars radiator if all you cared about was cooling.... is straight up and down on the roof.

[Senzelian]

Should be pretty obvious, but there is no case with 360mm radiator support for the rear, because that's where the graphics card mounts to.

If you still want to try the concept yourself, simply turn the fans around. That'll cause a lot of dust to get into the case tho.

[Nanook]

2 minutes ago, emosun said:

no probably not.

what you aren't factoring in , is all you've done is take the now hot exhaust air the computer produces and are now blowing it through the radiator. So no , your solution wouldn;t really gain anything and might actually be worse.

 

You want a perfect setup? put the rad entirely outside of the case. cool air goes in , hot air is outside the case. the perfect place for your cars radiator if all you cared about was cooling.... is straight up and down on the roof.

But that doesn't look cool.

[Nanook]

1 minute ago, Senzelian said:

Should be pretty obvious, but there is not case with 360mm radiator support for the rear, because that's where the graphics card mounts to.

 

Unless manufacturers make the case really wide? It could happen.

[emosun]

Just now, Nanook said:

But that doesn't look cool.

Exactly. it RUNS cool

[thrasher_565]

17 minutes ago, Nanook said:

Yea, I agree it is mostly a nonissue. But would the configuration I posted (if a 360 rear rad was possible) in a good air flow case, then would it make even 1 degree cooler temps? Why not let us aim for optimal, even if it wont matter much.

so in taking cooler air will make w/e its contented to cooler but everything els hotter. putting he ran on top will intake hoter air and make w/e its connected to hotter compared to the front but wont heat up the vrm, gpu, mb pcbs. so its a trade off.

 

case that have that were designed around water cooling have a bottom rad mount and intake from the side bottom and out the side bottom.

 

but because of water cooling being so expensive they build most pc case around the 360 aio.

 

lian la has an bottom case cumming end of this year. and hopefully silver stone got SOMETHING...

 

[thrasher_565]

10 minutes ago, Nanook said:

Unless manufacturers make the case really wide? It could happen.

its been done...

 

https://www.raijintek.com/en/products_detail.php?ProductID=124

 

i think there was an inwin 909 case as well that had a back mount but dont remember.

 

 

inwin 982

 

inwin 925

 

 

 

Edited July 7, 2021 by thrasher_565

[Senzelian]

3 minutes ago, Nanook said:

Unless manufacturers make the case really wide? It could happen.

Then you might aswell hang that up onto a wall

[thrasher_565]

the lian li air could do in front in bottom out side and top