Airflow Question

[Damonoxide]

Which setup do you guys think would be best?

The first picture is my current PC setup. I'm not worried about my CPU temps too much because I have an AIO. What I am worried about is having negative (or low) airflow for the rest of my PC, especially the graphics card (PNY 1070 dual fan if that matters) as it doesn't have any air being blown towards it because I have exhaust fans are sucking out the air from either side so it has to suck up what air it can.

The 2nd picture is the only alternative I can do (well, I could turn the left exhaust fan inward, but I don't have a dust guard there). I'm wondering if it'd be better to have the hot air blowing in from the radiator to help move the rest of the hot air out. The way it's positioned that most of the hot air would blow above the graphics card, I think. Also, wouldn't the cold air from the top cool down the warm air from the radiator some?

Thanks in advance! 

Edited June 15, 2022 by Damonoxide
Grammar

[dogwitch]

what case is it?

[NorKris]

this is how ur nr2 rly is

 

and this is prob ur best option

[jaslion]

What case do you have?

 

Usually all intake (except the back)BUT radiator on top is the best option for all around cooling. Dont even need a fan in the back

[NorKris]

26 minutes ago, jaslion said:

BUT radiator on top is the best option for all around cooling. 

this is not rly backed up by... anyone? 
Front intake rad is the way to best cooling

[venomtail]

Why are you trying to take cold air from the top down? Hot air rises. You're fighting physics here. The hot air you've just pushed out of the case now gets sucked in at the top the moment it leaves the case. 

[venomtail]

6 minutes ago, NorKris said:

this is not rly backed up by... anyone? 
Front intake rad is the way to best cooling

Depends on what you prioritize. If rad is at the front and it's an AIO for the CPU, your GPU will get the hotter temps. If your AIO rad is at the top or back, GPU will get all the colder air making ur CPU run hotter.

[NorKris]

4 minutes ago, venomtail said:

Why are you trying to take cold air from the top down? Hot air rises. You're fighting physics here. The hot air you've just pushed out of the case now gets sucked in at the top the moment it leaves the case. 

does it? does it rly when u have fans? look into it

 

1 minute ago, venomtail said:

Depends on what you prioritize. If rad is at the front and it's an AIO for the CPU, your GPU will get the hotter temps. If your AIO rad is at the top or back, GPU will get all the colder air making ur CPU run hotter.

0-2c + for GPU in tests. while cpu temps can drop 4-10c

[venomtail]

6 minutes ago, NorKris said:

does it? does it rly when u have fans? look into it

Going against rising air probably won't determine if you "break" your cooling but there's some performance to be gained. How much tho can be debated. Maybe if you only gain 1C in temps won't make that much of a difference.

[NorKris]

9 minutes ago, venomtail said:

Going against rising air probably won't determine if you "break" your cooling but there's some performance to be gained. How much tho can be debated. Maybe if you only gain 1C in temps won't make that much of a difference.

Air does not rise at all if a fan on 200rpm blows on it. 

[venomtail]

1 minute ago, NorKris said:

Air does not rise at all if a fan on 200rpm blows on it. 

So all the hot air outside the case won't just fill in the the space where cold air just got pulled in to. Apart from opening windows to make a draft, there's nothing moving air around my house. Maybe in the US it's different where everyone has AC, maybe that moves the air around constantly around the house thus your PC itself gets fresh air.

[NorKris]

3 minutes ago, venomtail said:

So all the hot air outside the case won't just fill in the the space where cold air just got pulled in to. Apart from opening windows to make a draft, there's nothing moving air around my house. Maybe in the US it's different where everyone has AC, maybe that moves the air around constantly around the house thus your PC itself gets fresh air.

Air pushed by pc fans enters and exits pc cases so fast, air has no time to natural go up or down bases on how warm or cold it is. 

having a top exhaust (if no Rad in the top) can benefit you trying to keep a  natural pressure in ur case. If u have a Rad in the top of ur case, u should have it as intake 

[Somerandomtechyboi]

2 hours ago, jaslion said:

What case do you have?

 

Usually all intake (except the back)BUT radiator on top is the best option for all around cooling. Dont even need a fan in the back

 

2 hours ago, NorKris said:

this is not rly backed up by... anyone? 
Front intake rad is the way to best cooling

 

2 hours ago, NorKris said:

does it? does it rly when u have fans? look into it

 

0-2c + for GPU in tests. while cpu temps can drop 4-10c

i agree with @jaslion since cpu cooling is just straight up unimportant due to no oc headroom (unless you can get it <60c) and you just need it to run <90c for max load and hit its turbo speeds, but the cooler the gpu the more oc headroom even if its very slight and that means abit more fps for higher clocks since the main bottleneck is usually the gpu anyways and not the cpu

 

 

But it really depends on what you wanna prioritize, personally gpu > ram > cpu due to gpu being the main bottleneck and a decent overclock on rams being able to also raise fps slightly depending on game compared to cpu oc, though ram cooling is only relevant for 1.6v+ and ics that oc past 4500 or time tight <4000 so just ignore that

[jaslion]

3 hours ago, venomtail said:

Going against rising air probably won't determine if you "break" your cooling but there's some performance to be gained. How much tho can be debated. Maybe if you only gain 1C in temps won't make that much of a difference.

The moment you have eveb the littlest of airflow rising air becomes a non factor

[Damonoxide]

Thanks for the replies!

I forgot to mention that the reason I don't have the radiator on top with the fans exhausting and pulling cool air from the front, is because the radiator wont fit up there, lol.  As far as CPU cooling goes, the AIO I have works well so I have plenty of wiggle-room there and I won't be hitting throttle temps anytime soon.  I also placed the rear exhaust fan there, because I had an extra fan and didn't know what to do with it and I had that one spot that doesn't have a dust collector, to I used it as exhaust.

So to reiterate, my main concern is the GPU getting the air that it needs because it's definitely my bottleneck, and my only options are to switch the fan orientations.

Also, someone asked what case I have, so here's the Newegg link  ^^
https://www.newegg.com/white-corsair-crystal-series-570x-rgb-atx-mid-tower/p/N82E16811139092?Item=N82E16811139092

Thanks again! 


 

38 minutes ago, Somerandomtechyboi said:

 

 

i agree with @jaslion since cpu cooling is just straight up unimportant due to no oc headroom (unless you can get it <60c) and you just need it to run <90c for max load and hit its turbo speeds, but the cooler the gpu the more oc headroom even if its very slight and that means abit more fps for higher clocks since the main bottleneck is usually the gpu anyways and not the cpu

 

 

But it really depends on what you wanna prioritize, personally gpu > ram > cpu due to gpu being the main bottleneck and a decent overclock on rams being able to also raise fps slightly depending on game compared to cpu oc, though ram cooling is only relevant for 1.6v+ and ics that oc past 4500 or time tight <4000 so just ignore that

 

[Damonoxide]

4 hours ago, NorKris said:

this is how ur nr2 rly is

 

and this is prob ur best option

hmmm, so have the radiator blow in and just exhaust everything? 

 

[jaslion]

10 minutes ago, Damonoxide said:

hmmm, so have the radiator blow in and just exhaust everything? 

 

No I'd still do all intake and keep the back open.

 

The 570 has decent airflow (still restricted due to front glass) so having the top fans help create pressure in the case to help launch the air out the back is more beneficial here

[Damonoxide]

4 minutes ago, jaslion said:

No I'd still do all intake and keep the back open.

 

The 570 has decent airflow (still restricted due to front glass) so having the top fans help create pressure in the case to help launch the air out the back is more beneficial here

That makes sense.  Any concerns about blowing hot air towards the GPU then? 

I can remove the front panel if needed  ^^

[jaslion]

1 minute ago, Damonoxide said:

That makes sense.  Any concerns about blowing hot air towards the GPU then? 

I can remove the front panel if needed  ^^

It'll run a bit hotter thats about it with a rad in front. But with the added top fans blowing some more freh air will make its way to the gpu than there is now.

[Damonoxide]

1 minute ago, jaslion said:

It'll run a bit hotter thats about it with a rad in front. But with the added top fans blowing some more freh air will make its way to the gpu than there is now.

My GPU is my bottleneck, so I think that's the way to go for now.

Someone else said that the top fans are potentially sucking in some of the heat from the front anyways, and as you said the GPU will get more fresh air, so it makes sense to me now to have all the air moving in one direction.

I appreciate everyone's help   

[NorKris]

4 hours ago, Damonoxide said:

My GPU is my bottleneck, so I think that's the way to go for now.

Someone else said that the top fans are potentially sucking in some of the heat from the front anyways, and as you said the GPU will get more fresh air, so it makes sense to me now to have all the air moving in one direction.

I appreciate everyone's help   

when your posting in the cooling part of the forum, and saying that ur GPU is the bottleneck. Do you mean that ur GPU is the hottest part?