Prodigy Optimal Airflow

[GabrielDrake]

Hi guys, what do you think about this airflow setup?

2x Spectre Pro -on H100i
1x Spectre Pro 140 - Rear
1x Spectre Pro 230 - Front

- The top of the case is filtered and restricted, as an exhaust (fan>h100i>mesh) it won't let all the hot air go out properly (fact, tested), so as a filtered intake should work better

- One of the main goal is mantain positive airflow to reduce the dust (side and front filtered)

Lemme know, any suggestion would be great

 

[nothingspecial]

Instant thought is that heat rises, so you're fighting against physics with the fans set up like that. Would be better to have front and back sucking in cold, then pushing the hot air out of the top.

 

[GabrielDrake]

Instant thought is that heat rises, so you're fighting against physics with the fans set up like that. Would be better to have front and back sucking in cold, then pushing the hot air out of the top.

ATM is like that, but top is highly restricted, so inside is getting warm (mostly because of gpu), top in fans>h100> mesh don't exhaust properly

 

[Etlar]

I was doing that on my old build, taken air in. But after going whit push air out. My temp drop down 3c.

 

[jamesriley94]

Instant thought is that heat rises, so you're fighting against physics with the fans set up like that. Would be better to have front and back sucking in cold, then pushing the hot air out of the top.

Agreed to an extent...
It would be better for you to intake from the back, and front, and exhaust through the rad in the roof.

As for the fighting physics, I really don't think it makes a great deal of difference. Yes heat rises, but if you put a fan there pushing the other way, it doesn't rise, it's forced in the direction of the fan.

As I say though, I don't really think it'll make too much difference in temps with your set up. Having fans blowing through a rad rather than pulling out is however louder, which is the main reason I'd do it my way. Chances are, the differences we're talking are likely to be about 2 degrees, so it's probably not worth overthinking about.

 

[GabrielDrake]

Again, with physics in mind, this is my actual setup (so thanks for the help but i got it by myself )

Problem is, too much warm inside (even at idle), gpu temp under load it's too high

Exhaust is the problem, restricted, IMHO

So I'm considering other options

 

[jamesriley94]

When you say temps are too high, can be more specific? Is the side panel getting enough air from the mesh at the side?

The setup you're considering changing to I don't really think will change GPU temps much at all tbh.

 

[GabrielDrake]

When you say temps are too high, can be more specific? Is the side panel getting enough air from the mesh at the side?

The setup you're considering changing to I don't really think will change GPU temps much at all tbh.

FC3 1680x1050 on high, 80° + , laud as hell, 100% fan

Why not? Gpu exhaust hot air in the case, so if the heat is not taken away all the components get warmer, including gpu itself

And so if you manage to exhaust more heat, all components will benefit, including gpu, because you will reduce internal temperature

 

[jamesriley94]

FC3 1680x1050 on high, 80° + , laud as hell, 100% fan

Why not? Gpu exhaust hot air in the case, so if the heat is not taken away all the components get warmer, including gpu itself

And so if you manage to exhaust more heat, all components will benefit, including gpu, beacouse you will reduce internal temperature

Your current setup has more fans exhausting than the proposed one?

If you're getting temps like that, I'd say you have bigger problems than it just being a case of fan positioning tbh. It should not be getting that hot.

 

[GabrielDrake]

Your current setup has more fans exhausting than the proposed one?

If you're getting temps like that, I'd say you have bigger problems than it just being a case of fan positioning tbh. It should not be getting that hot.

The proposed one has 140mm exhaust "free", fan>mesh, done.
Now i have 2x120mm highly restricted by 1) H100i and 2) filtered-top-mesh

What's the bigger problems?

 

[jamesriley94]

Maybe change the rear fan to exhaust then. But I'd leave the H100 fans how they are.

Your GPU is still intaking fresh air from the side panel mesh. And you do still have reasonable airflow in the case. Changing fan orientation will barely make any difference - certainly not 15-20 degrees which you should be aiming for for drops on your GPU. A 6870 with one of the best aftermarket coolers should not be hitting 80 degrees, so I'd say there's something wrong with the cooler on it. Is it still under warranty, are you planning to upgrade soon? Have you ever taken the cooler off?

 

[GabrielDrake]

Maybe change the rear fan to exhaust then. But I'd leave the H100 fans how they are.

Your GPU is still intaking fresh air from the side panel mesh. And you do still have reasonable airflow in the case. Changing fan orientation will barely make any difference - certainly not 15-20 degrees which you should be aiming for for drops on your GPU. A 6870 with one of the best aftermarket coolers should not be hitting 80 degrees, so I'd say there's something wrong with the cooler on it. Is it still under warranty, are you planning to upgrade soon? Have you ever taken the cooler off?

Well, the gpu is not directly attached to the side panel, some of the air is recycled from the inside, the hot air inside will still affect the gpu...
Anyway, in the Obsidian 550D it barely reached 65°, nothing is changed since then, stress test and games never showed artifacts or problems (idle temp are the same)

So i'm guessing it's airflow problem

I've never take off the heatsink, no more guaranty, planning to change as soon as I sell it and current gen cards drop a bit in price