PC case fan orientations
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- čas přidán 21. 08. 2024
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When I built my first PC I had to watch a 10 minute video to get this amount of information lol
Honestly I feel you. I felt like I was tryna hack into the area 51 for what was basic information.
When I built my first PC (a 386 with 1MB of RAM and a 40MB spinning rust), it didn't need fans! Didn't even have a heatsink on CPU. The www, was basically non existent and online video was a distant dream!
... Shit I feel old!
@@balls2bone ok boomer
Legit
@@Josh12323 Technically I am a melenial (Gen Y bother)! I just had an early start!!!
Pro tip, fans scoop they dont push, so when installing your fans keep this in mind
Also, those axial fans are really bad at static pressure, so if you have a very restricted air path, you really won't get much airflow.
@@vincentguttmann2231 Arctic P series, perfect for any arrangement, pretty quiet up until about 80% throttle, and cheap too
I have 2x P14s in front and a generic Thermaltake fan that came with my Versa H18 TG in the back, that's good enough for me. I have an old server chassis that I need to build a computer in, it has one exhaust fan with space for a front intake and two side intakes, I'll probably get a couple P12s for that.
Damn man dropped a whole paragraph
@@vincentguttmann2231 are the corsair fans good?
Just found out that all my fans are set to intake, I should probably change that tomorrow...
Nah, if you look up some comparisons then all intake usually outperforms any attempt at balance. The force exerted by the fans massively outperforms the natural rise of hot air
@@The_Anders except intake in the front to exhaust in the back isn't "natural rise of hot air", it's literally forcing fresh air through your case in the most effecient way possible, it doesn't only rely on "natural rise of hot air". Stop spouting nonsense.
Switch the back fan to exhaust, and you got the best setup, unless your case is too cramped and got next to no airflow.
@@The_Anders U will get more dust in your pc its dumb
@@The_Anders 🧢
I would recommend a positive pressure as it can help with dust if you have a filter. I tested neutral and I found that even though I have dust filter on ground top and for the psu there was a lot of dust, I changed to positive and that helped so much as it pushed air out of places where dust can enter from
Hey bro. I never really understood this. I have 2 120m intake ontop for my radiator and aio. 1 120m at the back for exhaust and 2 140m at front. Does this sound okay and what would you suggest i do if not. Thanks
@@claplord5362 I don't know what case you have, like rgb fans or dust filters, but on my case I have a top front and psu filter, I have an aio on the front with 3 120 rgb fans as intake. I have 1 120 at the rear as exhaust and on the top I have 2 120 intakes
@@claplord5362 yours sounds great, but you'd need to tell me more about your case, aio locations for mounting dnd dust filters
@@claplord5362 mine is positive so it forces air out of small cracks like expansion slots and between side panels, this greatly reduces the chance that dust will enter through these small gaps
I have a thermaltake AH 6000.
I have 4 intake fans and no filter. There's literally no dust since air flows too fast for it to settle in.
And if it settles in when I go to sleep, well, 1 hour of playtime does the job.
Make it slightly positive to keep dust down. You can do this by making the intake fan’s curve more aggressive compared to exhaust. Keep in mind that intakes often have to overcome impedance from the filters and mesh, whereas the exhaust often doesn’t, so you’ll need to account for that as well. If you set same amount of fans for intake and exhaust but do not account for this, and set them all on the same fan curve, you’ll end up with negative pressure instead, and end up having more dust entering the rig.
Fans also have an arrow showing flow direction, if you're not sure.
Some generic ones don't. It better to remember it the way told in the video.
Also fans tend to curve to the direction they spin and bulge towards the side they suck(or scoop) from.
And the shallow side of the blade is the intake side.
Easiest way to keep track across all fans is the side with the frame holding the bearing is the exhaust and the side without the frame is the intake
🙏
@@2jimmycrackcorn Lmao yall try too hard.. literally just "faces suck" or my buddy likes to add "Faces suck and butts blow"
If anyone’s wondering, the music he used here is “Loud Pipes” by Ratatat. You’re welcome! :D
Thanks! I was looking for the song name :-)
I knew I heard this somewhere before!! Ty for the help
This song unlocked a memory that was hidden for years, been so long since I heard that
@@vangledosh it’s a timeless song, isn’t it? :D
I haven't heard this song for years. Feels good to hear good music in shorts and not these nerve destroying songs from TikTok.
Yeah what’s the song? I recognize it but can’t think of the name. Is it by Paris Zax?
@@XpvtsnowmanfanX Its "Loud Pipes" by Ratatat
wildcat by ratatat is also really good
@@thinkon2127 Tacobel Canon might be one of their best
i didnt even notice the music because i wasnt instantly annoyed by it
Me with my budget case: "WHAT DO YA MEAN TOP OF THE CASE"
ha I had to remove the front of my budget case to even get enough air🤣🤣
What exhaust fan?
Lol I had to mod the crap outta my old cramped case so i could mount the AIO on top LOL upgrade pains
I have a HP DX2000MT from 2004
@@stupidvids0 anything to not spend 60$ on a good new case
"because hot air rises..."
Yes, but it doesn't have enough buoyant force to affect much in an actively cooled case. Going from 25°C to 70°C only decreases the air density by about 20% (1.23 to 1.03 kg/m³). That creates the force of about a few grams given the volume of an average case, which the fans can easily overcome.
🤓 I agree 🤓
Tell me what is better? To swim against the flow or swim with the flow?
Ok now can you explain this like your explaning it to a 9 year okd
@@itsnotabel2k355 Essentially the orientation of the intake and exhaust fans doesn't really matter. As long as the airflow moves from one side of the case to the other.
@@cwheels01 appreciate you 🙌
Its been so long hearing the group ratat, great taste in music!
Ratatat ! That sound clip is used in my local NPR station in Boston all the time. That and a bit from Too Many Zooz
yeah I miss them, wish they didn’t break up
almost thought it was fourtet
havent heard this song since 2008
The "because hot air rises" thing is BS. the fans will overpower convection by a lot. The tip is good anyways, most cases have an intake filter, so, the dust will be mostly kept out, the neutral pressure helps.
The point isn't that the air will rise inside the case, but instead that it won't circulate back into it.
I edited this because i now see how my last statement could've been taken offensively; i never intended to try and present you in a bad light, just wanted to clear this up.
Thanks for responding.
@@beProstofor sure. You're totally right. He made that ABSOLUTELY clear in his Video. I'm am idiot, thank you for your kind comment. That's how the community should work.
@@beProsto how will it circulate back inside after pushed out tho🤔 as the intake fans are on the front
@@king-su5uc he is actually right, the air nearest to the ground Is usually the coldest and of you exhaust at the top, you can get rid of the warmed air best. But that wasn't the point. I was talking about the convection inside the case, wich I didn't make clear.
sarcasm 10/10
Song is " Loud pipes - by ratatat " for anyone wondering
You do this within a minute, Gamers Nexus does this with in 1 hour and makes me question my intelligence
Common misconception. Yes, hot air rises, but because of the RPM of your fans being so high this occurance will never take effect as the speed in which the air moves from the fans greatly outweighs the air moving up on its own due to heat.
In general, it doesnt matter what the configuration is, you will always have similar effects with case fans. Positive pressure, negative, it very rarely matters. I personally use a negative pressure in my case and it works fine. As general info though, you should always have more of one type of fan than the other, wether it be intake or outtake doesnt matter.
TL:DR : Neutral pressure is actually bad.
Wait so 2 intake, 1 exhaust with an aio on top should be good, right?
Extremely important information that nobody talks about. More guides and videos should explain this as some people legitimately don't know, and won't magically learn it.
Instructions uncleaer, took off side panel and taped a room fan into the opening. If set to max, it blows the rams out of the sockets. Anyone know if I can superglue them or something?
Nah just use thermal paste on the ram to keep it stuck on the socket
@@illegalcqt3856 I don’t use fans, I just put thermal paste on all my components, actually keeps my pc at room temp.
@@jacobparedez2999 make sure to put some on your hands for extra fps
@@jacobparedez2999
Funny, when I did that, it kept my room at pc temps...
*plays crysis at 89°C room temp*
I just keep my PC dipped in liquid nitrogen
**nervously sweating not knowing if I installed my fans correctly**
1look dont bother
I'd recommend a slight positive pressure, preventing ingress of dust anywhere but the intake fans, where you can have a dust filter.😊
How would you do that
@@j.m4a1 By having a slightly higher intake of air than exhaust. Any excess will be blown out through cracks and spaces, preventing dust. Just becomes VERY important to dust off the intake regularly. (And it does need some kind of dust mesh.)
@@MichaelBerthelsen I’m getting the h510 flow so I should set 2 intakes on the front and 1 exhaust in the back? Would that be good
@@j.m4a1 Also depends on fans and speed, but in general, yes. As long as the exhaust fan isn't running way faster than the intake fans, should be fine.😊👍
Useful note: Some case fans have a tiny arrow on the side pointing out the air flow, making it easier to identify which side is which.
Even more useful note: If there is no frame, just open fan, that's the intake side.
I have 1 in the back and 2 on Top running at 1500rpm and 3 in the Front with my radiator running at 3000rpm for positive pressure in the case to help getting that hot air out and keeping dust out
3000rpm? Holy shit thats loud 😯
Also, sleeve bearing fans can only be placed vertically and Ball bearing fans can be placed in any orientation. Furthermore, some fans are a lot better at pushing air through restricted areas (Static pressure) than others.
It's also important to have equal or more intake fans than exaust because that way you won't have a negative pressure in your case drawing dust in from all the openings
Negative air pressure can sometimes make your computer cooler (although don't do what I did before which was having *all* fans being exhaust) but yeah, draws in a lot of dust.
it is a good idea to have more intake fans to create a positive air pressure it will prevent dust from building up in the case
I prefer a positive pressure approach as all the extra vents (particularly the ones you can't attach a fan and filter to) will then be an output and don't bring dust into the machine!
I've been studying and dont understand this yet. But I have a serious dust problem and would like to know how to set up a positive pressure system and what that even is and why it is good for keeping dust out. I really hope I get a response.
@@1122markj Positive air pressure basically means there's more air being pushed into the case than is being exhausted out.
E.g. having 2 intake fans and 1 exhaust fan would mean that more air is going in than out.
Dust is going to enter the case from holes in your case where it can travel with air through. With positive pressure air is being pushed OUT in all holes other than intake.
This means that if you attach dust filters to your intake fans and have positive pressure, the only major source of dust will be your intake filtered fans. You can then take off the filters and clean the dust every 2 weeks or month/s depending on long it takes for them to get dusty. All other holes will have air blowing out and so it'll be hard for dust to enter from there (while the PC is on).
You will still have some dust entering your case but it should be a lot less. Other factors to consider are if the case fans are of the same model or not as this will affect how much air they move. The example with 2 intake 1 exhaust assumes same fan model and that all the fans run at the same speed.
Hope that helps :)
@@1122markj Yeh, I set up all or at least most of fans pointing inwards (dependant upon case) with filters. There is usually a lot of areas where the air can escape (e.g. holes in pcie slot covers & etc), also you need more air in than out because the GPU is taking air from inside of case and venting out back.
Sorry for delay in reply.
So for positive I need to have more intake than exhaust?
@@adamriaz8203 thanks man, I was actually wondering this same question! That was really informative.
Got those loud pipes
Ayoooooo
Neutral and negative pressure can result in more dust in your case than positive pressure... Fun fact
Interesting..thanks for the tip!
Positive pressure was more intake then exhaust right?
@@tesora917 correct
@@Avibah wait how does this work because wouldn’t that mean ur pc is taking in more dust than it’s expelling?
@@Qball__ negative pressure can cause air to be pulled through gaps in the pc which arent filtered, resulting in dust getting in through those gaps
with filtered intakes less dust gets into the case because of those filters blocking it
For those looking for the music
Ratatat- Loud Pipes
Most fans push through grate side some are reversed flow but those usually have some sign like rp or rf for example
Good choice of fan color to increase contrast, helps with instantly "reading" the setup from a viewer's perspective
Forgot 1 crucial bit of advice. For the air coming in, you need equal or greater air going out. Always shoot for equal
AIR FLOW is so fricken vital its insane. I'm happy he discussed air flow and direction. Remember also, the psu, cpu, graphics card and North Bridge chip create the majority of the heat in your PC! Plan fan placement accordingly!
FYI all intake usually outperforms any balanced setup, as case fans massively outperforms the natural rise of hot air.
the idea that "hot air rises" is quite literally blown out of the picture by any of those fans running at like 5% or something very low.
You just want the hot air to be pushed out of the case into an open area of the room the thing is in, that doesnt mean it needs to come out of the front or the back.
But with that said, some cases are designed to be a specific way. So unless you are willing to remove fans and flip them around, maybe just do the front to back like most case designers tend to have it already.
Depends on the case honestly. Some cases only allow for this setup, and some cases have more options...a lot more options in some cases.
USUALLY this is the case, however there are fans that run in reverse. There should be an arrow on the fan to show how the blades turn or the flow direction, or both. So I reccommend looking at that to know for sure, or, you know, just test it
Haven't heard Ratatat in a video in more than a decade.
Actually the best way is just vent at bottom and 3 badass fans onto with the sides closed off. Pulling air out is way more affective.
Informative vid, love Ratatat aswell!
2 intakes and 2 exhaust fans does not automatically mean it‘s neutral pressured aurflow. This heavily depends on your fancurve. Consider making a custom facurve for optimal airflow.
slightly positive pressure is what you want to prevent dust from getting in the case
Why can't more videos be this helpful. Label out, air out is what I learned the hard way though
I run 3x filtered 120mm intakes, one 70mm intake above the gpu into the cpu and mosfets, one pointed at the actual mosfets, and one 200mm exhaust top mount. The 200mm exhaust out sucks the 3 120mms so i added the 70mm for POSITIVE PRESSURE
Positive pressure is way better than neutral pressure because it lets air exit through more pathways, also hot air rising is irrelevant because even just swinging your hand can beat that so it has no effect.
That many fans is gonna sound like a fighter jet
I have a Arctic F12 pro pwm. It the exact oposite, the grate comes from the back, over to the front and the motor is in the front.
There are some exceptions to the rule, so that's why you need to pay attention.
That's a rare exception, for sure. But as some comments allready mentioned, there's an arrow on the fan, that indicates the flow direction, if you're not sure.
That is the single best fan setup for any case size.
Props for playing ratatat in the background, loud pipes is an awesome track. More people should know about them
I'm not saying this is bad advice, but it's very vague. Positive pressure is usually a better option as long as your case has plenty of areas for air to be pushed out. I have had an issue with an old PC with a tower style CPU cooler where the fan in the rear of the case was fighting with the CPU fan so be mindful of that. The reasoning behind a positive pressure setup is it will exchange the air faster IF the case has plenty of ventilation i.e pcie covers with perforations or vents on the bottom of the case. If you don't have ventilation then the air pressure in the case will rise and drastically reduce air flow. If your case doesn't have good ventilation the a push/pull setup is what you should use.
Positive pressure is always the way to go
Well, and here's the explanation for those wondering why it should make a difference: Theoretically it shouldn't. But it does, on a case with fan air filters.
If you have a slightly higher pressure in one of those cases, excess [filtered] air will push out through all the nooks and crannies. If you have a lower-than-ambient pressure, you can suck air in through there, which will be unfiltered and bring more dust into your case.
Thank you I just now took out all my fans for cleaning and forgot which way my fans were configured
Positive pressure (more fan driven cfm in than out) is the way to go, filters on all intake fans. Positive pressure + filters reduces dust ingress at cracks and seems which means lower cleaning requirements.
Why do those brown fans look so old but look so good. Id build a whole old style pc with colors like that
I really wish people would stop spreading the whole "hot air rises" argument without understanding how little that matters in a pc case with decent air flow. It takes very little effort to overcome the pressure of hot air rising.
Bro i could never find a very good video to show exactly how these fans work.
I remember I bought a prebuilt PC and I saw a video about some dude who had the same PC and had to fix his fans because it was facing the wrong direction and I was like oh sucks to be him and then I look at mine and it looks exact the same as his and im like shit
That sucks
Sucks that prebuilts quality control is lacking. Some prebuilts evencome with loose cpu coolers or gpus
Positive pressure doesn’t work like most are thinking. Unless you have sealed filters on all of your intake fans, they are blowing dust into the case. With numerous intake fans, you are actually sucking more dust into the case that you would with equal intake and exhaust, which is why most PC makers use an even number, it’s most efficient and economical way to remove heat from the case, period.
Pro tip have slightly more intake than exposed to create a positive pressure in the case this will keep dust from comming in though the tiny little gaps in the case where fans arnt
It might be better to go with more intakes than exhaust fans for positive air pressure. That way air will leak out of any available hole or slit pushing dust out. Also make sure to filter any air coming in but not any exhaust. We want to prevent dust from getting sucked in but we don't want to prevent any dust getting blown out.
Loud pipes by Ratatat is the backing song.
it doesn t matter what orientation he is i love him either way
Loud pipes good choice
I always have a higher pressure in the case. And only put intake fans on slots with dust filters. The air wont leak in your case through ports and slits. Because pressure is higher i side then out. Higher pressure doesnt matter for cooling.
This saved me, thank you so much.
My favourite is 3×3 configuration 3 intake at the front and 1 at the back and 2 at the top
The effect that hot air rises does not matter because the case fans are way stronger.
Yeah, this effect will only matter with passive systems since the airflow is dictated by the heat
@@NYgasman8 What do you mean?
Fun fact, unless you have a top mounted radiator, don't put an exhaust fan in the front most top mount. You just suck the air from the top front intake right back out of the case lol.
Me who doesn't have a case fan: *Well that's good to know...*
Front pull inside, back, pull outside, up, pull outside
I like to have positive pressure in my case. This minimizes dust in the PC
How do I orientate fans to get this
@@j.m4a1 more intakte than exhaust! And make sure that the intake fans have a dust filter if your case has some. You can make it more complicated by reading up on fan airflow and static pressure but the common rule is more intake than exhaust to have positive pressure.😁
@@vidarsjogren Im getting the h510 flow so I’ll set two intakes on the front mesh and 1 exhaust on the back
@@j.m4a1 that would work fine! But two exhaust wouldn't be the end of the world either. Just don't have too much exhaust and you will be fine. Make sure to install some high quality fans as well.
I'd always got for positive pressure if possible. it pushes more air out of the case on every possible holes, rather than pulling air in from every holes that have no filters on it
"Hot air rises" is neglectible with that much fan force. In most setups, I think you'd be best off with complementing the internal unit's fans, like the GPU, CPU, PSU etc. 2-3 intake in front and 1-2 exhaust in the back is usually fine.
Just remember front to back and bottom to top and you'll be good if your case is a fishtank then use "front" as the side
i just spin them and feel which way the air flows with my hand. usually there is a side where the blades seems flatter. that is the pull side
I have Three intake up front, one Exhaust on the back, and two Exhausts on the top.
Wow
I did this right completely randomly
That's a lot of fans u got there
Bruh thanks so much I was legit looking for this and just happened upon it
I tend to exhaust out the front of my case as mine are typically under a desk so rather than creating a hot zone under the desk I pull in through the bottom and top and rear and either passively exhaust out the front or add a fan depending on flow
but you wont get as much air going into your pc if the top fans and rear fans are intake AND your pc is under the desk, its just gonna suffocate airflow, also heat rises so top fans are just pulling in hotter air, please use a program to check your thermals sndand benchmark it (jist use msi afterburner) and show the results, theres no way youre not thermal throttling
@@zentar2646 dude, I've been doing this for over 10 years for the fact that it continually runs cooler, it gets more than enough airflow.
@@exogator doubt it, your desk must be very big
@@zentar2646 you're a peanut man and yes my desk is big 2mx3m.
It can't suck hot air in when there's no hot air under the desk it sucks cold air that is at floor level in from under the desk and next to the stone wall, then exhausts it to basically the centre of the room, that heat then rises to the ceiling...
I literally have 5 intake fans sucking cool air and my legs stay cold...
A tip directly from TechSource himself: The face of the fan sucks air
I remember it like "Faces suck"
General rule: Air always flows towards the cross.
I switched to intake from top and front, one exhaust at the back. GPU and CPU have never been cooler. The "hot air rises", doesnt matter in a case with good airflow.
My choice is to put two fans at the top then one at the back for exhaust and I have a radiator with 3 fans as intake
First thing I noticed was Ratatat - Loud pipes in the background
Same
It was also the second third and last thing I noticed. We're all Ratatat fans here!
Fuck, just now remembered that fans' orientation matters more than how many rgbs it has
My pc is prebuild and fan is at perfect place and cooling is perfect
Remember, "hot air rises" doesn't apply to a computer case, the foot print is too small and fan pressure dictates the flow of air.
For simpler terms, the "X" on the fans means exhaust or exit for the air.
you are the only tech toker who knows what they are talking about
The effect of hot air rising is completely, entirely, unequivocally negated by the forced airflow of even the slowest fans.
Rule of thumb: the ugly part usually points towards the back of your case (or the top of you're mounting them on the top of your case)
Just finished adding two fans to my new Lancool Mesh II, a 140mm exhaust at the top rear and a 120mm intake above the power supply. Had to add a cover on the 140mm to prevent cable contact
I have three 120mm intakes attached to my 360mm Radiator and two 120mm exhaust on top and one 140mm exhaust in the back.
Ey that’s exactly how I set mine up, except I have 3 front fans. Glad to know I did it in a good orientation on accident 😂
I think you should change the direction on the top fan because Heat always goes to the top of the pc so the fan helps to push it out
I keep an extra fan intaking air because if your pc has openings in the top it naturally exhausts a lot of the hot air anyways, but i do definitely suggest keeping at least one exhaust at the top alongside any other exhaust you want at the back
One of my fans spin in the opposite direction. I had to use my hands to feel the wind to actually see/feel if it's intaking or exhausting
Tip it's written in the fan the direction it must be installed and says the direction of the airflow
Worst case just take ur glass panel off, it may be louder but it has all the air it needs.
Also, I'm new to pc gaming, my bro started gettin into it and got to a point where he can make and change a pc like he can work on a vehicle. I asked him a couple of years into it if he could build me one and nearly died at the price range (over $3000 CAD for an avg/good pc build) got a Ryzen 5 2600 and a 1660 super, AIO CPU cooler and full RAM (tho It's underclocked due to the TUF Gaming motherboard, but I don't remember wat series it is)
I prefer a little over pressure aka 2 in, 1 out. That pevents dust from coming into the case.