Static Pressure vs. High Airflow Fans As Fast As Possible
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- Опубліковано 28 бер 2016
- There's more to choosing the right PC fan than picking a size, noise level, and bearing type! Linus explains the difference between high airflow and static pressure fans.
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my wife said "are you listening to that goofy dude again?" yes i am
Listening to Linus is one of my guilty pleasures. I put on WAN shows that I missed and fall asleep.
You should have said "I'm always listening to you, dear. Oh, you meant linus?"
haha, my wife hates his voice lol
Hahahahahahha gold
haha "goofy"
of course a video about fans comes out the day after I buy a set
Same except I bought mine a few weeks ago :(
+william Booth-Clibborn Did you buy the wrong fans?
Same except I bought mine 5 years ago ;(
+william Booth-Clibborn Heh I just bought some a month ago myself. I had always gone with included fans in the past. Aka, the fans that came with my case and the fans that came with my aio watercooling cpu cooler. I decided I wanted to replace some fans to improve the look of my rig, so I researched this just a few weeks ago.
For fellow noobs like myself, the exhaust side of the fan is the side that the motor is attached to usually, if the fan doesn't have an arrow to know for sure. Therefore, if you are attaching an intake fan, put the side the motor is attached to closer to the center of your case than the rest of the fan, if you are attaching an exhaust fan, put the side the motor is attached to closer to the outside of the case than the rest of your fan.
Also consider what is known as a "positive pressure" setup for your case. That means you have more air coming INTO your case, than getting blown OUT of your case. The reasoning behind this one is dust. You will know where all your dust comes from, specifically your intake fans. Therefore, you could put filters with your intake fans and eliminate a large percentage of the dust in your system. There are always other places dust can creep its way into your case. If you have positive pressure (more intake than exhaust), then those cracks and holes will be expelling air, instead of sucking in air, making it much harder for dust to enter those tiny holes.
I personally have 2 140mm front intake fans, 1 120mm bottom intake fan, 1 140mm rear exhaust fan, and 2 120mm exhaust fans attached to my cpu radiator in pull configuration. As I said earlier, I am not an expert because this is the first time I attached custom fans, but I'm hoping this info is helpful to people that were in the same situation I was in.
Trust this to come out 4yrs before i purchase mine
Speaking of Houses made of Ice, lets talk about payment systems.
Lol
Yep
+Subash Chandra "This video was Sponsored by Cool Master!" :D
+Subash Chandra yeh for once that transition got me. lol
Speaking of iglos: Brainfreeze!
This seems like a very good topic for a "Workshop" type video - to see how much of a difference the types of fans would make in a congested vs airy case
When TechQuickie has better content than LTT
+Matthew Kinney Because some of the videos should be TechQuickies...
Like how to install a FREAKING GPU
+Vinyl Scratch or ....
How installing GPU in FREAKING way.
lol ...
Digging this video up because even 6 years later I needed an explanation for static pressure vs high airflows and I knew Linus would have that covered
So its basically horsepower vs torque.
yeah actually that's a good way to think about it
As a car guy, nobody knows what that means! Lol no jk. It’s just a pain to explain
@@raymondjackI would love to say they are the same thing many would raise a spear against me but really, we are just missing the RPM part
Awesome! So glad you just posted this video! I'm going to microcenter tomorrow to get a couple fans and a network adapter. Now I know what I need!
I think that testing static pressure fans vs high airflow fans in a cpu heatsink and/ or a pc case would be a great video for your workshop series
Some of the transitions that the LMG team have to do between a topic and their sponsor are comedy gold. This is definitely one of the better ones!
Good stuff Linus! Thanks for the much needed info.
pls keep posting consistently, I love this channel, I learn so much.
Love your videos i always find them helpful, keep it up!
linus does ol ways good work on these videos.props to editors too :D
Thanks for that good explanation! I had no idea of this, so I'm with even more doubts about this topic everyday 😂. You only forgot to say how can we differentiate a kind to other, since most of sellers don't include such information.
I knew a bit more about this than originally expected, but even still, thank you, I learned some new things, always useful, also, on a side note, I originally found you guys when you were ONLY ltt, and then found out quite late to the game, your other channels, I just wanted to stop and take a moment and say, although I do not always agree with how you guys do certain things, thank you for making all the videos you do, because regardless of my ability to agree or not, with some of the things you guys do, you always make these videos useful for learning new things, so thank you for all that you guys do!
Been wondering what the diff was between these two types of fans. Thanks LMG for yet another great video!
Loved this video a lot, I liked the randomness but keeping to the topic a lot.
This is very useful information for 3D printing fans for part cooling fan vs hot-end fan... Thank you for this.
I would really love for Linus Tech Tips to do an experiment here. Could you do an experiment where you test AF vs SP fans as case fans and as radiator fans, measuring differences in case temps (for case test) and CPU temp (for radiator test)?
Come on Luke I want to see a does it matter video about static pressure vs airflow fans lol
Preproto wait are you joking or...
i turbo charged my computer cooling, im getting about 20 psi of boost, with that i get both high airflow and high pressure
Stututuuu
2:25 AM in Italy here, tomorrow I'll have an important math exam, hope this video will help me
It won't!!
+DragoonDark97
9am here, haven't slept yet, hope this video will help.
+DragoonDark97 Please follow up with how the exam went when you're done
Best of luck to you.
+TheLofren lol. we all must know the outcome. the Internet is watching now
Oh god, this has made the subject so much more understandable! Thanks Linus
That transition to the sponsored part in the ending was so damn smooth.
Drink every time Linus touches that thing in his pocket.
+Nicholas1984Autonomy I'm tanked
gigidy :)
Great video. I will need this for when I build a computer later this year
Nice video. Was always wondering about why exactly these were better for certain things. I was just told that they were better for radiators, so I bought some for my Rads lol.
I love your videos!! they are really well made and very informative but when you keep your voice at the same pitch for so long it's so hard to listen to XD
Do a high flow vs static pressure test on a radiator and heat sink to measure the actual temperature difference. Could work as a workbench episode.
I've got a densely packed itx case. So I'm picking a Noctua NF-P12 as the primary air mover. Probably mount the secondary fan as an extractor on the side or top panel.
Two thumbs way up Linus good job! It's all about blade design, number of blades and angles. The motor is more about noise level , longevity, rpm's and torque but is mostly negligible as the cheapest fan and the best fan operate so similar. A better electric motor with a better bearing will be more powerful, quieter and last longer. More blades will push more air but rotate slower and require more energy. Larger fans move more air have lower rpm's and are quieter as well.
If I had fans in push-pull configuration, would this be just as good as static pressure fans? (other than the obvious more fans and more space used)
Great advices, thanks Linus!
Verry well explained, thanks
This is the info I need! Thank You!
thank you so much linus i learned so much from you . from philippines :)
Is the choice between high airflow and high static pressure an either-or choice or can one fan have both characteristics?
wow great timing on this one
I liked the graphics in the middle of the video. what did you use, i want to learn and create
instead of sliding pictures, I find that more attractive but not sure whether other people will get the messages
when I upgraded my video card from a single to a dual i started getting over heat issues ,.. my solution ,..
I took off the side panel all together and set a 6 inch desk fan blowing directly into the open side ,my pc never ran cooler and surprisingly the sound did not increase in any noticeable way.
the only down side is once a month i need to use a compressed air can to blow a small amount of dust out of the corners of my case.
so i was checking fans on amazon for my first pc build and i saw that there are different types of fans so i checked out this video so i finally understand what are airflow and pressure fans but i still have one question what are air balance fans
Linus, can you do a video of building a CPU INSIDE an igloo??
+ZRovas117 Igloo-shaped CPU case. Made of genuine ice.
+ZRovas117 I don't think he has the equipment to manufacture a CPU. Much less inside an igloo.
+Crazy Canadian I think he means a pc
VoidCrafted Gaming He prolly should've said that, then.
+Crazy Canadian maybe ASML is kind enough to donate a multi million Euro machine for that....
Is it possible to tell the difference between the types of fan just by looking at them? For example by looking at the type/shape of blade?
can we have a video testing the difference between the 2 fans in various configurations on the workshop or something?
Real smooth transition there linus, gg
Would upgrading my airflow 140mm fans to high pressure 120mm fans help as intake. The fans current pull air through a filter with a 90 degree angle vent.
@Techquickie Why does it take so much longer to render a video than it does to render (and record) video game footage? Could there be a breakthrough just waiting to happen?
Im trying to understand whether or not the airflow series of Corsair (AF140) would be a better bottom intake fan than an ML140, but the ml140 claims 97 CFM while the af140 claims 66. But the ML140 has significantly more static pressure?
Super simple question that I can't seem to find an answer for. I really like the Thermaltake Riing fans however I don't use liquid cooling and they only come in static pressure versions. My question, would I be harming the cooling efficiency of my case by not using air flow designed fans for the sake of cool looking ring lights? (Note: I've removed all of the optical and storage drive cages so it's completely open so the only "obstructions" the fan would have to pull through are the dust filters.)
Have Luke do a Workshop video on this. It'd be interesting to see the real world results
Linus can you make test, is the cooling of ps go better if we put case upside down but with old case where psu is on the top of case with 120mm fan and with high voltage gpu?
i WAS SERCHING FOR THIS KIND OF VIDEO 1 - 2 WEEKS AGO !!
I needed this video
I am making a diy NAS case and I want to just use one intake fan at the back and have vents at either side of the case and get my 140mm fan to push the air in and out. I was wanting to get the fractal design 140 static pressure venturi fan? is this a good idea? can't tell if a high airflow fan would be better for this situation
Good video. I have a MSI 970. it has 3 case fan inputs but I can't control the 3rd!!!
how can u tell if
a fan is Static Pressure or High Airflow Fan
you can actually tell by the number of fins on the fan and the angle they have more fins usually means its for airflow. overlapping fins have good pressure
@@Aleph-Noll OK thanks for the info
Fans like any other component in your system need to have SPECS (specifications). The information comes in what is called a "datasheet". If you are shopping on Amazon you will not get such information. If you are really serious you need to be shopping on a real electronics components site like Digikey. You must realize also that the specs given will be for a specific condition. So "200 CFM" is worthless all by itself. It needs to be something like "200 CFM at blah blah blah static pressure environment". Sorry, there is no simple answer here- that's why we engineers get paid so much money ; )
which fans are better Axial (desktops) or Centrifugal (laptop) if they were the same size and same RPM which would cool more?
Please suggest best cooling fans with great static pressure on Amazon if any for 16 inch laptops .
I would assume a high static pressure fans would create more resonance in a case if the intake and outtake were not matched too well, I noticed that my case sort of had a vibration sound (like 10-20hz) when I did 2:1 ratio of fans, only when the cover was on. It feels like it might be best to have a high flow outlet fans near the CPU cooler and a high static near the hard drive cage, and let the outlet "adjust" to the inlet / CPU/GPU fan movement, instead of having them constantly fighting each other and create a pressure delta inside the case, plus having an opening without a fan that has positive outflow seemed to have best results for me in terms of noise.
High Pressure type for Intake and CPU Cooler,
High Airflow type for Exhaust,
Balance Fan type for Both.
If you choose RGB Fan, those fans usually adjust to Balance type,
but more into RGB than Cooling Performance.
Witch one you think would cause less tinnitus
And which one for the top of the case?
@@SRC267 Intake, the back usually for exhaust
@@R3in_Ch I was gonna get one for top, but someone said 80mm fans are loud (case only has 80mm support for the top) plus, I don't think it will make a huge difference.
I don't know if anyone has tried it but is there really a significant difference from using AF fans for the heat sinks and SP for the case, than the appropriate situations for them, or just compare the two types of fans (AF and SP) on the heatsink alone. If anyone hasn't done it, it could be another Workshop episode where the conclusion is always the thing we've known but hadn't got the chance to really test it.
Hey, Linus and Luke, we always hear about using SP and AF fans for different purposes, but we also always heard about cable management and thermal paste application methods being important as well. How about a new Workshop episode on this topic to test it out by swapping fans out in different locations on the case. Like intake, exhaust, heatsink and maybe a radiator. So we see just how much of an impact it makes.
+Aarekk i like this concept. do it guys
Is this supposed to be a joke?
***** No. That's the entire point of The Workshop. They put a plushie in a case and it didn't do shit when we always heard that cable management is important to get the best cooling. They just plopped thermal paste in different ways when we were always told that the application method was important to, again, get the best cooling. Here we have another example of "do this to get the best cooling" and I would like to see a video quantifying that in order to see just how much of a difference it makes. What if the difference is one degree again. Maybe the _less optimal_ fan is far cheaper compared to the _more optimal_ one but the lack of temperature difference makes that a fair tradeoff for someone.
We got two Workshop videos in a row where we learned that nothing happens. I feel I am justified in wanting to know if this falls under the same category.
Aarekk OK, I get it now. You meant they should make a video about the effects of changing static pressure fans for airflow oriented ones and vice versa and the rest was examples of episodes they've already made. The way you phrased it was a bit ambiguous and I (and 5 other people, apparently) interpreted it as you suggesting they make episodes about cable management and thermal compound application techniques.
***** Oh, no yeah. I was trying to justify my pitch by making the claim that it would fit right in with the other videos they made. It may have been a bit weird to open my comment with the past examples. My bad.
Well, for a rear exhaust do i need an airflow fan or a static pressure fan ?
just use the Wind-Tunnel Technique -.-' it seems to work fairly well to cool my rig off i basically created a short tunnel out of cardboard to house two fans running in the same direction to increase their effective airflow
So im slowly getting parts to build a pc and im thinking of getting 5 of the Noctua NF-F12 iPPC-3000 pwm fans to replace the 2 120mm intake fans on the front, 2 120mm fans for the h100i gtx and 1 for exhaust out the rear of the case, would these fans be sufficient for cooling everything or should i look at different types for say the radiator or intake/exhaust?
what about front mounted radiators? which fan is the best option for that?
Hi, im from 2020 here:) I have a question, what type of fan: AF or SP is better to use as an outtake fan on the back of the case? I have 3 SP on top, 3 AF on front side and now its a dilemma what to place on the back. Need help, please!
Are dust filters really restrictive enough to warrant SP fans?
Scott A If your 'airflow' fans also have a decent static pressure rating then you should be fine. The most you will gain from switching to SP fans is a couple of degrees anyway. I would be more concerned about noise to be honest.
All I could focus on is whatever Linus kept touching in his pocket.
Ket
I find it quite irritating too!
+Liam Irwin I think it's the remote for the teleprompter...
+Liam Irwin prompter scroller
+Liam Irwin I think that is the audio equipment for his microphone.
both fans have airflow when operational. the difference between the two is the capacity of air IN/OUT, to which you need to measure with anemometer to get the CFM/CMH volume of air output/ input. both fans have static pressure when operational. the difference between the two is the blade design. low static pressure fans are good for open area, free blow. for a specific higher static pressure only needs if the inlet/ outlet has air resistance. examples are vacuums. for a better PC ventilation, you need the right air circulation inside the box. fresh air/ air in should be less 10% to 15% of the exhaust/ air out. hot air always goes up so you need to consider the fan positioning too.
I'm planning on buying the H100i RGB Platinum. But I want to buy RGB fans to pair with the fans on this AIO (as in connecting RGB effects in iCue like you see in all those nice builds).
I need one airflow optimized fan for the front (as I am going to mount the AIO radiator and the (included) ML120 RGB fans to the front) and two airflow optimized fans for the back of my case (one in the rear and one on top).
As I only have space for one 120mm fan on the top of my case, I want one fan there and I cannot mount my AIO radiator there. That's why I'm going to mount the radiator in the front.
As the ML120 PRO RGB fans are static pressure fans (so optimized for radiators and tight spaces, only applicable for me for the AIO radiator itself) I need in total 3 airflow optimized RGB corsair fans that will match the ML120's on the H100i RGB Platinum.
Because I need airflow optimized fans, I do not want to buy more ML120's as they're static pressure fans.
Any suggestions on airflow optimized RGB fans that'll match the ML120's on my H100i RGB Platinum?
I know Corsair has their AF line-up of airflow fans, but they're not RGB.
I do not know what the LL series do. Are they airflow fans? Or static pressure?
Does it matter if I would mount the static pressure ML120 fans as exhaust fans? Or doesn't it matter THAT much because the ML120's have better performance than the LL120's?
Should I go for the LL120 RGB fans? Or something else?
Also, if I would f.a. buy the H100i RGB Platinum and 3 LL (or ML) fans with a lighting hub/lighting node pro. Do I have to plug the ML fans of the H100i into that hub along with the other 3 fans?
Or do they connect separately into the H100i and can I choose whatever fans I want as they have their own hub? (I've read on some compatibility issue between different fan types and their hubs).
I could not find anything about the airflow/static pressure subject on these two fans. I already know that the LL fans have worse performance but look better but then again, the ML fans are for radiators and are the LL fans meant for cases and are they good enough?
All in all, a whole story. If you read this far, I appreciate it and if you would help me decide, you'd help me even more! Thank you in advance!
does anyone know if/when this sweatshirt will be available? It is so nice
Linus you always kill it!!!
I have an RX480 XFX in a Cougar QBX case. Would it be a good idea to remove the GPU Hard Swap fans altogether and install 2 120mm static pressure fans right in front of it (less than 0.5mm)
NZXT S340 intake fans, Airflow or Static pressure, opinions?
Love your jacket!
"speaking of igloo... braintree!"
i laughed harder than i should xD
How about when the pc case's front fan mounts has a dust filter? (In front of the fan itself). What fan should I use? SP or HAF?
He answered that at 3:18 - ".....a static pressure fan would be more effective at getting air through these small gaps......if you have a case that has very narrow vents on the front or even a dust filter that's designed to filter the dust out of the air but is of course going to obstruct air flow."
TL;DR if you have a dust filter on the front intake of your computer case then you need an SP fan because the filter obstructs the flow of air for intake.
lol just wondering ; what's in your watch pocket that you keep fidgeting with?
For *exhaust* fan on a NAS stuffed with drives should I use Pressure optimized even though it's the exhaust?
I always use high static pressure fans because of the dust and dust filter I put on my chasis
Linus did a High Airflow fan arrange your haircut. LOL :)
so if i have 2 fans, one is high static pressure and one is(low static pressure)advertised as an airflow fan, but BOTH have the same CFM, wouldn't i just go for the high static pressure fan?
You are very helpful!
So which one for exhaust and airflow? I've got a normal, not very packed mid tower case.
in the specs i see alot of cfm and m3/h, so what i know is the amount of airflow, i need to fans for my radiator. if there rated at max.1200 rpm with 101.6 cfm will that be good? thanks :)
Thank you! that helped!
help please! my hyper 212 needs atleast 1600 rpm fan. so im planning to place the original hyper 212 fan at the back of the fan. and place a new cooler looking 1300 rpm fan infront of the hyper 212...... is that a good idea?
so if my pc has filters for dust, should I go full high static pressure?
thanks! would helped if u threw in the angle of attack into the explanation imho :D
Where did you get your jacket? it looks nice
Corsairs SP120 fan has a higher CFM than the Corsair AF120. So is the SP120 also better for airflow?
is it okay to have a highAir flow fan hooked to a Cooler master 212 evo heatsink ?
Make a video about the difference in temps about the two :)
Please
Great vid
Good as always
So, what is the best 120mm?? I have The Noctua NH-U12P, And i need 2 fan for cooling my Xeon X5650@4.3ghz@1.42v, With the noctua fan the temp at full load is too high(98c).
and if nothing else, this video is a good reminder to grab that duster and clean out your case fans and prepare for summer heat.
i have very little knowledge about this..does high RPM means better airflow?