Setup A or B

Deleted member 24505 · Sep 16, 2021

Simple QQestion really. Regarding positive or negative pressure, would A or B be better? with B both rads would be intaking cool air, exhausting out of the front, and probably creating positive pressure in the case.
A

B

Ferd · Sep 16, 2021

I would go. B
A looks like it will create some turbulence

DeathtoGnomes · Sep 16, 2021

You have to consider VRM temps in such cramped quarters, airflow will help keep temps down. You have hoses restricting airflow more so in B than A.

how is that loop flowed? Pump > rad > rad >gpu >cpu > pump?

elghinnarisa · Sep 16, 2021

Try it? a bit of fiddling but at the end of the day it's a bit different from setup to setup which is more effective.
In my case I generally had it as intake, for lower coolant temp, but higher case ambiance. The ambiance was less important for me personally. But I did try both and it was a noticible difference. Neither performed poorly though, just different.

ThrashZone · Sep 16, 2021

Hi,
Every time I've seen images of your build it never has a side wall on
If you never have it on setup does not matter you might as well be using a test bench.

Deleted member 24505 · Sep 16, 2021

DeathtoGnomes said:
You have to consider VRM temps in such cramped quarters, airflow will help keep temps down. You have hoses restricting airflow more so in B than A.

how is that loop flowed? Pump > rad > rad >gpu >cpu > pump?

Yes, in the pic the CPU block was the wrong way around, switched it now.

ThrashZone said:
Hi,
Every time I've seen images of your build it never has a side wall on
If you never have it on setup does not matter you might as well be using a test bench.

The panels are only off for the pics.

ThrashZone · Sep 16, 2021

Hi,
If you use it leave it as is.

lexluthermiester · Sep 16, 2021

Gruffalo.Soldier said:
Simple QQestion really. Regarding positive or negative pressure, would A or B be better? with B both rads would be intaking cool air, exhausting out of the front, and probably creating positive pressure in the case.
A
View attachment 217171
B
View attachment 217172

Option C. Mount your RAD fans to be pulling air through the rads and directly out of the case. You want to always remove heat from a PC, never inject it back in. Thus:

ThrashZone · Sep 17, 2021

Hi,
Now that is Negative pressure
Four fans pulling out more than one fan can pull in
So result is open rear of case will now pull in dirty air and clog rads in no time.

Jetster · Sep 17, 2021

With that much heat you need to move air fast and get it out of the case.

lexluthermiester · Sep 17, 2021

ThrashZone said:
Now that is Negative pressure

Negative pressure measured in fractions of a percent in PSI, a statistically and practically insignificant difference in the context of a PC case.

ThrashZone said:
So result is open rear of case will now pull in dirty air and clog rads in no time.

Incorrect and deeply flawed assessment. Cases need cleaning regularly as a general rule. If a RAD is getting clogged, more frequent cleaning is need, not a rearranging of fans.

dragontamer5788 · Sep 17, 2021

I'd prefer A personally. The airflow is simpler to understand: all air is moving at all locations inside the case towards the top and rear of your computer.

B has the issue of stagnant air: locations where the air isn't moving very much at all. Components in this area won't have as much cooling delivered to them.

No such region exists in A.

Deleted member 24505 · Sep 17, 2021

Case is viewed from top looking down, motherboard is flat.

Also the smaller rad needs to be going in really, as airflow is blowing onto the vregs on the video card as it has not got the stock cooler to cool it. it does have a heat sink on the regs though, see pic.

I'm gonna see if i can slide the big rad a bit to get a fan on the back, empty place, might eliminate stagnant air there, if i fit one, in or out?

dragontamer5788 · Sep 17, 2021

Oh, and here's my "imagination" for how the airflow works in A.

You can see that the green arrows cover the whole region, that no area will be "stagnant". Since airflow is traveling all across your system, it would be the safest option to go with.

Deleted member 24505 · Sep 17, 2021

dragontamer5788 said:
Oh, and here's my "imagination" for how the airflow works in A.

View attachment 217193

You can see that the green arrows cover the whole region, that no area will be "stagnant". Since airflow is traveling all across your system, it would be the safest option to go with.

Don't forget though, the video card is sticking up like a wall, between the small rad and the space in the middle. The GPU does have airflow from small rads fans.

claes · Sep 17, 2021

Option C, all intake

lexluthermiester · Sep 17, 2021

Gruffalo.Soldier said:
Don't forget though, the video card is sticking up like a wall, between the small rad and the space in the middle. The GPU does have airflow from small rads fans.

And that is why turning the fans on both RADs around to suck air out of the case will benefit your setup. Good airflow.

ThrashZone · Sep 17, 2021

Gruffalo.Soldier said:
Don't forget though, the video card is sticking up like a wall, between the small rad and the space in the middle. The GPU does have airflow from small rads fans.

Hi,
Yep that's why I said you have it setup as well as possible now if you use the side wall
Case is a handicap you might look into a vertical gpu mount though it would let more air pass by the gpu.

I've had my pci-e covers off for years it does allow air to pass through easier.

DeathtoGnomes · Sep 17, 2021

It would be interesting to have 1 intake and 1 exhaust fan on the bottom radiator. I imagine cooling will be relatively the same or close.

Not sure what video card that is since @Gruffalo.Soldier never filled out specs info. If that was a beefier card I would opt for Option A to keep the heat flowing away from the vcard. Otherwise, I agree with @lexluthermiester assessment.

Deleted member 24505 · Sep 17, 2021

DeathtoGnomes said:
It would be interesting to have 1 intake and 1 exhaust fan on the bottom radiator. I imagine cooling will be relatively the same or close.

Not sure what video card that is since @Gruffalo.Soldier never filled out specs info. If that was a beefier card I would opt for Option A to keep the heat flowing away from the vcard. Otherwise, I agree with @lexluthermiester assessment.

It's a gtx980ti

If the airflow is away from vid card, will there be enough cooling for the regs on it though?

freeagent · Sep 17, 2021

I would go with B

DeathtoGnomes · Sep 17, 2021

Gruffalo.Soldier said:
If the airflow is away from vid card, will there be enough cooling for the regs on it though?

doesnt the block cover them?

Deleted member 24505 · Sep 17, 2021

No, couldn't get a full cover for the 980ti

ThrashZone · Sep 17, 2021

freeagent said:
I would go with B

Hi,
With this case yeah B seems the best option if a modification is wanted.

lexluthermiester · Sep 17, 2021

Gruffalo.Soldier said:
It's a gtx980ti

If the airflow is away from vid card, will there be enough cooling for the regs on it though?

It'd be fine. That RAD is so close to the GPU the airflow will provide a cooling effect.

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Processor	10900k w/Optimus Foundation \| 5930k w/Black Noctua D15
Motherboard	z490 Maximus XII Apex \| x99 Sabertooth
Cooling	oCool D5 res-combo/280 GTX/ Optimus Foundation/ gpu water block \| Blk D15
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Display(s)	1-AOC G2460PG 24"G-Sync 144Hz/ 2nd 1-ASUS VG248QE 24"/ 3rd LG 43" series
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System Name	Ghetto Rigs z490\|x99\|Acer 17 Nitro 7840hs/ 5600c40-2x16/ 4060/ 1tb acer stock m.2/ 4tb sn850x
Processor	10900k w/Optimus Foundation \| 5930k w/Black Noctua D15
Motherboard	z490 Maximus XII Apex \| x99 Sabertooth
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Audio Device(s)	Built in Realtek x2 with 2-Insignia 2.0 sound bars & 1-LG sound bar
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Keyboard	G710+x3
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Setup A or B

Deleted member 24505

Guest

Ferd

DeathtoGnomes

elghinnarisa

ThrashZone

Deleted member 24505

Guest

ThrashZone

lexluthermiester

ThrashZone

Jetster

lexluthermiester

dragontamer5788

Deleted member 24505

Guest

dragontamer5788

Deleted member 24505

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claes

lexluthermiester

ThrashZone

DeathtoGnomes

Deleted member 24505

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freeagent

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Deleted member 24505

Guest

ThrashZone

lexluthermiester

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