Jump to content

Make a video finally solving if positive or negative air pressure is better

Teemo4Life
By Teemo4Life
in Cooling
 Share
Posted

Run a game, record the temperatures.

Test:

Most fans positive pressure (eg 3 fans positive 1-2 negative)

Most fans negative pressure (eg 3 fans negative 1-2 positive)

Do you think this will be a good idea for a Linustechtips vid?

No one knows which one is better.

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

Jayztwocents made a video about this

Early 2020 Build : Intel i7 8700k // MSI Krait Z370 // Corsair LPX 8x2 16GB // Aorus 5700 XT // NZXT H500 

Early 2019 Build : Ryzen 2600X // Asus Tuff X470 // G.Skill Trident Z RGB 8x2 16GB // MSI RTX 2070 // NZXT H500 

Late 2017 Build : Intel i7 8700k // Asus Prime Z370-A // G.Skill Trident Z 8x2 16GB // EVGA GTX 1080 Ti  // NZXT S320 Elite 

Late 2015 Build : Intel i7 6700k // Asus Maximus VI Gene Z170 //  Corsair LPX 8x2 16GB // Gigabyte GTX 970 // Corsair Air 240

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

Jayztwocents made a video about this

He just made a video explaining it. Same as Linus but no practical evidence. That's what I would like to see.

Just like the case fan video

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

He just made a video explaining it. Same as Linus but no practical evidence. That's what I would like to see.

Just like the case fan video

There won't be a better choice in this, most people go positive to keep dust away from their PCs

Early 2020 Build : Intel i7 8700k // MSI Krait Z370 // Corsair LPX 8x2 16GB // Aorus 5700 XT // NZXT H500 

Early 2019 Build : Ryzen 2600X // Asus Tuff X470 // G.Skill Trident Z RGB 8x2 16GB // MSI RTX 2070 // NZXT H500 

Late 2017 Build : Intel i7 8700k // Asus Prime Z370-A // G.Skill Trident Z 8x2 16GB // EVGA GTX 1080 Ti  // NZXT S320 Elite 

Late 2015 Build : Intel i7 6700k // Asus Maximus VI Gene Z170 //  Corsair LPX 8x2 16GB // Gigabyte GTX 970 // Corsair Air 240

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

He just made a video explaining it. Same as Linus but no practical evidence. That's what I would like to see.

Just like the case fan video

they have talked about this and would have to set up multiple identical systems for months possibly years to get results. its just not worth their time 

Project Iridium:   CPU: Intel 4820K   CPU Cooler: Custom Loop  Motherboard: Asus Rampage IV Black Edition   RAM: Avexir Blitz  Storage: Samsung 840 EVO 250GB SSD and Seagate Barracuda 3TB HDD   GPU: Asus 780 6GB Strix   Case: IN WIN 909   PSU: Corsair RM1000      Project Iridium build log http://linustechtips.com/main/topic/451088-project-iridium-build-log/

 

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

Neat idea, but IMO them benefit of proper air filtration and slower dust buildup via positive case pressure is far more valuable than the possibility of a 1-2 dec C temperature difference.

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

I swear they already addressed this in the video on the number of fans you need.  They didn't directly test air pressure, but they did test similar fan configurations and temperatures. 

 

post-162296-0-46242000-1451179478.jpg

 

 

Really it doesn't matter in terms of thermals, fan placement in relation to components seems more important, but the rule of thumb is positive air pressure is better for keeping the dust in your system to a minimum.

CPU Intel Core i7 7700K; Cooler Cryorig R1 Universal; MB Asus ROG Maximus IX Code; RAM G.Skill Trident Z 3200Mhz (4 x 8GB); GPU ASUS GTX 1080 Ti ROG Strix Gaming OC; Case Be Quiet Dark Base 900 Pro Silver; Storage Samsung 960 EVO 500GB, Samsung 850 EVO 1TB, Seagate Barracuda 4TB; PSU EVGA Supernova 850W G2; OS Windows 10; KB Corsair K70 (MX Brown); Audio O2 & ODAC, Sennheiser HD 600, Sennheiser RS 185, Swan M200MKIII; Monitors 2x Dell U2410

 

Previous Build

 

CPU Intel Core i5 4690K; Cooler Cooler Master Hyper 212X; MB Asus Z97-A; RAM G.Skill Sniper (2 x 4GB); GPU 2x Gigabyte GeForce GTX 970 G1 Gaming (SLI); Case Corsair Obsidian 450D; Storage Samsung 840 EVO 120GB, WD Black 1TB, Hitachi 750GB; PSU EVGA Supernova 750W G2; OS Windows 10; 

 

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

Neither is better. There are too many system configurations to give a definitive single answer of which is better.

 

Moved to Air Cooling--please post in the correct subforum in the future. Do not just dump threads into General Discussion. 

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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

Its too much about personal preference. And evironment in general. Some people just like stuffing their case full of fans. In that scenario they will eventually end up with negative and claim that its better. People who aim to quiet their system go for basic 2 in, 1 out or 1 in, 1 out. Thats more positive or neutral. They too claim that its better. Even when someone has done video proving otherwise. And how would you test it realisticly? Dust build up takes weeks and thats most used reason for going positive.

^^^^ 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

×