Jump to content

Front fans intaking or exhausting?

Michael Rahmani
 Share
Go to solution Solved by Michael Rahmani,

Thanks for everyone's help! Front fans are intaking and back are exhausting now. GPU is WAY cooler.

Posted

Hello,

 

I have a fractal R4. I have two stock fans in the front of the case exhausting air. My H80i is in the back intaking air. Is this setup ideal or is there a better setup?

 

I originally had all my fans intaking but then I figured that was stupid and made my front fans exhaust. 

 

Thanks!

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

Hello,

 

I have a fractal R4. I have two stock fans in the front of the case exhausting air. My H80i is in the back intaking air. Is this setup ideal or is there a better setup?

 

Thanks!

have the front intaking aswell and get 2 fans to exhaust out the top.

CPU: i7 3770k@ 4.6Ghz@ 1.23v - GPU: Palit GTX 660ti - MOBO: Asrock Extreme 4 - RAM: Corsair vengeance 8GB 1600Mhz - PSU: OCZ 650watt - STORAGE: 128Gb corsair force GT SSD/ 1TB seagate barracuda 7200rpm

                                                                                         COOLING: NH-U14s/ 3x Noiseblocker blacksilent pros/ Silverstone Air Penetrator/ 2 corsair AF120s

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

It's just reversed airflow. You're fine.

 

If your liquid cooler is sucking air into the case, you need to suck it out somehow. Putting fans positioned in reverse on the front of the case is a much more viable method than sucking it through a straw.

 

Check example below.

 

mAcQUEb.jpg?1

Shot through the heart and you're to blame, 30fps and i'll pirate your game - Bon Jovi

Take me down to the console city where the games are blurry and the frames are thirty - Guns N' Roses

Arguing with religious people is like explaining to your mother that online games can't be paused...

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

have the front intaking aswell and get 2 fans to exhaust out the top.

He has a liquid cooler sucking air in from the back of the case. OP should have his front fans expelling air, to create a reverse airflow.

Shot through the heart and you're to blame, 30fps and i'll pirate your game - Bon Jovi

Take me down to the console city where the games are blurry and the frames are thirty - Guns N' Roses

Arguing with religious people is like explaining to your mother that online games can't be paused...

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

He has a liquid cooler sucking air in from the back of the case. OP should have his front fans expelling air, to create a reverse airflow.

I just like positive pressure, so I would have the front intaking, but either way its not gonna noticeably affect temps.

CPU: i7 3770k@ 4.6Ghz@ 1.23v - GPU: Palit GTX 660ti - MOBO: Asrock Extreme 4 - RAM: Corsair vengeance 8GB 1600Mhz - PSU: OCZ 650watt - STORAGE: 128Gb corsair force GT SSD/ 1TB seagate barracuda 7200rpm

                                                                                         COOLING: NH-U14s/ 3x Noiseblocker blacksilent pros/ Silverstone Air Penetrator/ 2 corsair AF120s

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

front always intake

bottom always intake

top always exhaust

rear can be intake or exhaust, depending on what works better to get positive air pressure

NEW PC build: Blank Heaven   minimalist white and black PC     Old S340 build log "White Heaven"        The "LIGHTCANON" flashlight build log        Project AntiRoll (prototype)        Custom speaker project

Spoiler

Ryzen 3950X | AMD Vega Frontier Edition | ASUS X570 Pro WS | Corsair Vengeance LPX 64GB | NZXT H500 | Seasonic Prime Fanless TX-700 | Custom loop | Coolermaster SK630 White | Logitech MX Master 2S | Samsung 980 Pro 1TB + 970 Pro 512GB | Samsung 58" 4k TV | Scarlett 2i4 | 2x AT2020

 

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

I use 4 intake ( one front ,two bottom ,1 rear) and have two exhaust through my radiator so i have positive pressure, i should realy make the rear an exhaust so im not pumping all this hot air through my rad.

5820k@3.8GHz| Corsair H100i |Gigabyte x99 SLI | Corsair 16GB | EVGA 780Ti SC ACX SLI x2 |240GB SSD120GB SSD 512GB SSD 2TB HDD | 3x ASUS VN247H 24" ( nVidia Surround)

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

You need to have front intake. Otherwise GPU doesn't get enough cool air to use.

^^^^ That's my post ^^^^
<-- This is me --- That's your scrollbar -->
vvvv Who's there? vvvv

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

reverse cooling can work but its not good... why would u intake warm air from radiator? u just getting heat in case for no reason. if u dont use radiator it would be ok. but again its better to have intake on front so u can better cool gpu.

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

Not getting into the discussion of which's better: negative or positive pressure, I believe everyone agrees that hot air rises(I guess this is a proven fact) and that hot air should not stay inside your case.

 

Heat(hot air) originates from: CPU, GPU, some chips on the motherboard and HDDs/SSDs.

 

With that in mind, the best way to get the hot air out ASAP and the cool air in ASAP is:

 

Front/bottom: intake; top/rear: exhaust.

 

Mess up with the setups, try different things and check the temperatures.

Whichever layout has the best combination of CPU, GPU and Case/Mobo lowest temperatures is the way to go.

 

This is a great example of great airflow, IMO.

DSCN0433.JPG

CPU: Intel Core i7-4790k | CPU Cooler: Noctua NH-D15 | Motherboard: ASUS Sabertooth Z97 MARK 1 | Memory: Kingston HyperX FURY 16GB 1866MHz | GPU: Gigabyte GeForce GTX 770 4GB Windforce


Storage: Samsung 840 EVO | PSU: CM Silent Pro 720W | Case: Phanteks Enthoo Luxe | Headset: Corsair Vengeance 2100 | Keyboard: Logitech G710+ | Mouse: Razer DeathAdder Chroma


"You see, one can only be angry with those he respects." - R. Nixon

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

reverse cooling can work but its not good... why would u intake warm air from radiator? u just getting heat in case for no reason. if u dont use radiator it would be ok. but again its better to have intake on front so u can better cool gpu.

 

Rads that are placed bottom or front can and often are used as intakes. But I'm with you in why to use top rad mount as intake since CPU is already cooled by it. If there would be problem with CPU temps, there's always rear fan to provide fresh air just for rad.

^^^^ That's my post ^^^^
<-- This is me --- That's your scrollbar -->
vvvv Who's there? vvvv

Link to comment
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing Cooling

×