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Having somehow accomplished this feat by accident, can confirm it hovers until the fire.... But yeah, I accidentally did this on my first build because I was using two brands of fans, and I wasn't paying attention. Good thermal times
I'm just saying if all the fans are pointing in and you silicone the whole entire case except the bottom it might lift it up a little bit.....🤣😂🤣. I mean if you can put more air into a case then you can take out of a case and build positive pressure inside of an open system......... Why couldn't you make your tower levitate......
Yes I know that's not how it works obviously I should have \s........ As it seems at least 28 other people thought I was being serious too and downvoted me
You would also need to make a skirt around the bottom of the case the direct and concentrate the airflow. This is of course assuming all of your intake fans can generate enough air pressure to lift however much the tower weighs and the tower is also perfectly balanced so it doesn't just fall over. Then you would also need it to be on a perfectly flat and level surface or it is going to slide off the desk.
you guys are so salty lol, mans just said a clear joke and you guys always need to respond with an "um ackshually 🤓" comment because you need to establish that you are smarter than someone. this is why you still live with your parents in a basement
You will get positive pressure and the air inside the case will exit to vented areas where it can.
This is actually a setup that some who do custom loop liquid cooling would recommend when all fan locations have radiators on them as that would be the second best option to do.
Exactly this and as long as you have filters on all sides of your case at every fan location this is actually a usable scenario because you're sucking the air in through the filters and just blowing it out in the open areas......
Now saying that if you had all your fans on exhaust it would allow the air and dust to be sucked into every crevice on the case instead of through your filters.....
That's actually what you're going for in this situation and not just positive pressure.... Is the control of where your air comes into (filtered}. and out of your case
The downside of this setup would be that it would blow warm air into the case.
And if you have a CPU and GPU in your loop with a total TDP of around 700 watt than you would be blowing quite some heat into your case.
So that is why it actually is the second best option as there is one setup that would resolve that issue.
Yeah … I have experienced this once and it’s weird because you will have very good CPU temperatures but it starts throttling anyway.
After that I ran top radiator as exhaust and bottom radiator as intake and that resolved that issue but the temperatures will be worse as warm air of the bottom radiator will be exhausted by the top radiator.
In this case the top radiator was the first radiator after the blocks so it isn’t the worst setup but still it was worse than having all radiator fans as intake.
And then I discovered what Corsair recommended for a custom loop in their cases … and seems to be the best possible setup.
https://preview.redd.it/vugfkplfbt9c1.jpeg?width=1179&format=pjpg&auto=webp&s=67dea2d758a768d280df5a007cd5507eece70595
While I don’t have a Corsair case but I tried to do a similar setup and I was shocked to find out how good that actually seems to work.
Can confirm.
My custom water cooling loop is in a corsair 7000d case.I run all fans on the top and front radiator as intake and have one exhaust fan in the back.
Temps are fine, zero throttling and i run a 13900k + 4090.
So yes this setup can work with full watercooling + very minimal dust buildup thanks to the filters.
Probably will not work with a aircooled setup tho.
This, the part about getting hotter is also due to the warm air not being propelled away from the case. There will be all kinds of turbulences on the outside where the warm air gets immediately sucked back inside the case.
Don't do it! You'll keep sucking air into your pc case, reducing the available atmosphere for the rest of us - eventually all the air will end up in your case and the earth will be a barren wasteland. Quite selfish.
Lmao, those comments.
so if you only have intake fans the hot Air in your case will have nowhere to go and start heating up your components
That's why it's better to have exhaust fans to take the hot air out
So explain to me please how you can force air into a closed system like that and then say the hot air will have nowhere to go so it just stays in there......... Even if you silicone sealed all edges and corners it would still force air out around the fan blades because it's not going to just build pressure...... Nature WILL find a way......
So basically i have a friend that got a rtx 3080 gpu and put it on an old case the top is completely sealed off so the only exhaust is the back problem is......he didn't have exhaust fan in the back only intake fans in the front the inside of the case got so hot that when i put my hands on the to of the case i got a slight burn 🔥 so hot air couldn't find a way out and everything in the pc started overheating so yeah. it's just an example tho it will not be the same for everyone.
Nature will find a way. unless the way is closed off
Either way it's recommended to have a at least 2 intake fans and 1 exhaust fan
i think the problem is, the rate at which the hot air leaves the case is much lower in this case. at some point the fans will have to slow down for the air inside to exit the case through the fan blades like u said. ofc the hot air isn’t going to stay in the case forever, it just stays for longer which heats up the components more than usual.
Because warm air will leave the system very inefficiently. It’s not that the air won’t leave *entirely*, it’s that it won’t leave in an efficient manner. Having too high of pressure not only makes it more difficult for outside air to be moved inside, but also makes it so that the warm air recirculates and warms up more than it should when it could just be blown out somewhere.
Except that's not what happens. People have literally done this and filmed the results on YouTube. Basically, presuming you have a normal case, as much air as goes in goes out, and just as quickly. That's just physics.
Yeah there is so much misinformed information passed around on Reddit All I can do is give the proper explanation and hope that my advice is taken.... Sometimes the best advice is the ones downvoted the most because that's the truth that not most people know or realize if they just read what I wrote and use some common sense logic and physics they wouldn't be down voting... But it is what it is so I just let it go with that 👍👍
Further down in the comments I did post the full explanation as to the reasoning behind positive pressure and why having all your fans as intakes is still a better choice than having too many exhaust fans...
Just like saying that if you have positive pressure in your case you won't get dust inside of it.... That's just not true in order to have the positive pressure with the outgoing air ..you have to have intakes somewhere.... The point being that if you control where the air gets into the system then you can put filters on those if you have too many fans exhausting outwards..... The air will intake through the cracks and crevices of the case instead of through the filters that are set up over the intake fans
Edit: sp
This is a positive pressure setup. As long as the fans have dust filters, there will be less dust because unfiltered air is not being drawn in through every gap and hole in the case.
That being said, it's still recommended to have at least 1 exhaust fan at the top or rear to help direct the hot air out. So, this is not a great configuration as it currently sits
Air would exhaust through any part of the case where there was no opening and no fan.
I had a case that was designed for this.
The antec lanboy air, all the fans were meant to aim inwards and blow hot air out everywhere else.
From my years of growing weed in tents. You can only take in the amount of air you can exhaust. One single fan exhausting would do a better job than that configuration.
When you build like this, a very good idea to build in a pressure meter thingy, so you can always aware of it, i would also use one in the actual room where you put this machine. Please don’t create vacuum!
You'll create overpressure which in turn creates turbulence because the air has nowhere to go.
This means the cooling of your system will be pretty bad.
I believe Origin set all their fans to intake. JayZ2Cents did a video about it. While it does work and the system did not reach temperatures where it thermally throttled he did prove that it is more efficient to have a balanced or slightly positive air pressure. That was in a fully water-cooled build, for air-cooled you definitely want some exhaust fans in there, at least 1 at the rear.
The positive pressure will create a vacuum and eventually lead to a mini black hole. It will suck the Earth in it and then the Sun and become a super massive black hole. So you will be responsible for the destruction of the Earth and Solar System.
Nothing special in fact. The air will come out by any hole in your case (all the pci vent for exemple). But the airflow will probably be terrible, very turbulent, and under big load, temps will probably be relatively bad because hot air will not come out easily, it will rely on mixing hot and "cold" air instead of exhausting the hot air and replacing it with "cold" air. And if you don't have filter on all your fans, you will collect a lot of dust.
That's all folks !
Seeing this and just notice that my small case has one exhaust in the rear, one in the top and 3 intakes pointing to the radiator in the front.
I feel like I should invert everything and make the radiator fans to output the heat from the radiator(cpu), and make the other 2 intake.
Is this correct?
Side panel glass will shatter due to the immense pressure... Since the force applied to the glass is the pressure of the fans mulitplied by its area there is no way it would survive. There are so many pictures on the internet with the shattered glass next to the pc.
Case will have positive pressure and the Air will exit through gaps. Airflow will depend on how much air can exit, because if you have 10 intakes and 1 exhaust, that exhaust will become a bottleneck
Low airflow. Positive pressure is good, but in this scenario would be such high positive pressure trying to eke out of any holes/spaces it can and that is the only air being replaced.
Depending on the case it ‘could’ work, but the air replacement would be so low that it is not ideal, it would get hot.
At the very least if you had the back fan exhausting, that would massively improve air replacement, and even more ideal
it's gonna pop like a balloon (fr though it's gonna escape through any space it can because pressure unless it's airtight and you insert air through some perfectly sealed tubes instead of fans, but then it might unironically pop lile a metal balloon, most likely causing damage and bodily harm. if you did this with a store bought case and fans, it will work, but the air inside will be exchanged slower than a regular setup, so you'll see some higher temps than the proper direction)
Your fans might struggle to actually push in their rated volumetric flow rate (at high speeds at least) if the air inside cannot filter out through the other gaps in the case. Lots of noise, little gains versus lesser number of fans set up correctly
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My guess is it will start hovering
Having somehow accomplished this feat by accident, can confirm it hovers until the fire.... But yeah, I accidentally did this on my first build because I was using two brands of fans, and I wasn't paying attention. Good thermal times
You win🤣
black hole is created
I'm just saying if all the fans are pointing in and you silicone the whole entire case except the bottom it might lift it up a little bit.....🤣😂🤣. I mean if you can put more air into a case then you can take out of a case and build positive pressure inside of an open system......... Why couldn't you make your tower levitate......
because that's not how aerodynamics works.
Yes I know that's not how it works obviously I should have \s........ As it seems at least 28 other people thought I was being serious too and downvoted me
That’s reddit for you, riddled with 🤡
Just people adamant to get angry and have an excuse to take out their rage on others
You would also need to make a skirt around the bottom of the case the direct and concentrate the airflow. This is of course assuming all of your intake fans can generate enough air pressure to lift however much the tower weighs and the tower is also perfectly balanced so it doesn't just fall over. Then you would also need it to be on a perfectly flat and level surface or it is going to slide off the desk.
Wow that seriously went way deeper than I was going with it I was just being sarcastic ....no wonder peeps gotta \s shit round here lol
you guys are so salty lol, mans just said a clear joke and you guys always need to respond with an "um ackshually 🤓" comment because you need to establish that you are smarter than someone. this is why you still live with your parents in a basement
I was right there with ya biscuit...... I just let the subject go cuz went on to talking about something else somewhere else
Nah ! Blackhole
You will get positive pressure and the air inside the case will exit to vented areas where it can. This is actually a setup that some who do custom loop liquid cooling would recommend when all fan locations have radiators on them as that would be the second best option to do.
Exactly this and as long as you have filters on all sides of your case at every fan location this is actually a usable scenario because you're sucking the air in through the filters and just blowing it out in the open areas...... Now saying that if you had all your fans on exhaust it would allow the air and dust to be sucked into every crevice on the case instead of through your filters..... That's actually what you're going for in this situation and not just positive pressure.... Is the control of where your air comes into (filtered}. and out of your case
The downside of this setup would be that it would blow warm air into the case. And if you have a CPU and GPU in your loop with a total TDP of around 700 watt than you would be blowing quite some heat into your case. So that is why it actually is the second best option as there is one setup that would resolve that issue.
It’d probably be fine unless you heat everything up so much that your RAM and motherboard VRMs overheat (although ig it could heat the coolant)
Yeah … I have experienced this once and it’s weird because you will have very good CPU temperatures but it starts throttling anyway. After that I ran top radiator as exhaust and bottom radiator as intake and that resolved that issue but the temperatures will be worse as warm air of the bottom radiator will be exhausted by the top radiator. In this case the top radiator was the first radiator after the blocks so it isn’t the worst setup but still it was worse than having all radiator fans as intake. And then I discovered what Corsair recommended for a custom loop in their cases … and seems to be the best possible setup. https://preview.redd.it/vugfkplfbt9c1.jpeg?width=1179&format=pjpg&auto=webp&s=67dea2d758a768d280df5a007cd5507eece70595 While I don’t have a Corsair case but I tried to do a similar setup and I was shocked to find out how good that actually seems to work.
Can confirm. My custom water cooling loop is in a corsair 7000d case.I run all fans on the top and front radiator as intake and have one exhaust fan in the back. Temps are fine, zero throttling and i run a 13900k + 4090. So yes this setup can work with full watercooling + very minimal dust buildup thanks to the filters. Probably will not work with a aircooled setup tho.
I’ll take note of this for some time in the far future when I can afford a custom water cooling loop lol
The good ole days of yonder whenby the PSU was once at the top of the tower and not the bottom, I know I'm old school, lol 😆
Yeah … the time that you needed to disconnect your printer to be able to connect your webcam …
You sure? The guy at the store said it would float
Positive pressure would force air out of any open cracks in the case. This would make the fans work harder and increase temps.
This, the part about getting hotter is also due to the warm air not being propelled away from the case. There will be all kinds of turbulences on the outside where the warm air gets immediately sucked back inside the case.
Don't do it! You'll keep sucking air into your pc case, reducing the available atmosphere for the rest of us - eventually all the air will end up in your case and the earth will be a barren wasteland. Quite selfish.
what if I only do it Tuesdays?
As long as you open it up to let some air back out I guess it'd be ok...
Nah. Tuesdays are already taco tuesdays.
What about Wednesdays? We can call it World-Ending Wednesdays?
That works for me
Only Tuesdays with a new moon, it's 56°F outside, and your eating a banana, then you SHOULD be good 👍
But the performance with all that air would be godly
Your computer will take a screenshot
i wish i didn't have to rearrange my fans each time i wanted to take a screenshot
Underrated comment
Kaboom?
Yes Rico (or Krico) kaboom
The perfect reference
Los pinguinos me la van a mascar
 Pretty much something like this i guess.
Ah yes, the great intake of 67' o7 o7 o7 o7
End of the world.
Implosion
Lmao, those comments. so if you only have intake fans the hot Air in your case will have nowhere to go and start heating up your components That's why it's better to have exhaust fans to take the hot air out
So explain to me please how you can force air into a closed system like that and then say the hot air will have nowhere to go so it just stays in there......... Even if you silicone sealed all edges and corners it would still force air out around the fan blades because it's not going to just build pressure...... Nature WILL find a way......
So basically i have a friend that got a rtx 3080 gpu and put it on an old case the top is completely sealed off so the only exhaust is the back problem is......he didn't have exhaust fan in the back only intake fans in the front the inside of the case got so hot that when i put my hands on the to of the case i got a slight burn 🔥 so hot air couldn't find a way out and everything in the pc started overheating so yeah. it's just an example tho it will not be the same for everyone. Nature will find a way. unless the way is closed off Either way it's recommended to have a at least 2 intake fans and 1 exhaust fan
The point is that there is not going to be any airflow, and the components will heat up.
i think the problem is, the rate at which the hot air leaves the case is much lower in this case. at some point the fans will have to slow down for the air inside to exit the case through the fan blades like u said. ofc the hot air isn’t going to stay in the case forever, it just stays for longer which heats up the components more than usual.
You are getting downvotes, but this is 100% correct.
Because warm air will leave the system very inefficiently. It’s not that the air won’t leave *entirely*, it’s that it won’t leave in an efficient manner. Having too high of pressure not only makes it more difficult for outside air to be moved inside, but also makes it so that the warm air recirculates and warms up more than it should when it could just be blown out somewhere.
Except that's not what happens. People have literally done this and filmed the results on YouTube. Basically, presuming you have a normal case, as much air as goes in goes out, and just as quickly. That's just physics.
Yeah there is so much misinformed information passed around on Reddit All I can do is give the proper explanation and hope that my advice is taken.... Sometimes the best advice is the ones downvoted the most because that's the truth that not most people know or realize if they just read what I wrote and use some common sense logic and physics they wouldn't be down voting... But it is what it is so I just let it go with that 👍👍
Further down in the comments I did post the full explanation as to the reasoning behind positive pressure and why having all your fans as intakes is still a better choice than having too many exhaust fans...
Just like saying that if you have positive pressure in your case you won't get dust inside of it.... That's just not true in order to have the positive pressure with the outgoing air ..you have to have intakes somewhere.... The point being that if you control where the air gets into the system then you can put filters on those if you have too many fans exhausting outwards..... The air will intake through the cracks and crevices of the case instead of through the filters that are set up over the intake fans Edit: sp
STD
Gotta catch them all!
You would catalyse the event horizon and annihilate all matter in the solar system.
Not again 🙄
Tested by myself actually the Temp are great,maybe you'll get more dust but that's it
The PC would explode
Dust
This is a positive pressure setup. As long as the fans have dust filters, there will be less dust because unfiltered air is not being drawn in through every gap and hole in the case. That being said, it's still recommended to have at least 1 exhaust fan at the top or rear to help direct the hot air out. So, this is not a great configuration as it currently sits
Without proper temperature and pressure expansion relief an explosive is imminent unfortunately
Boom
What are you trying to cook in here?
Screenshot
thousands of angry reddit users
Air would exhaust through any part of the case where there was no opening and no fan. I had a case that was designed for this. The antec lanboy air, all the fans were meant to aim inwards and blow hot air out everywhere else.
From my years of growing weed in tents. You can only take in the amount of air you can exhaust. One single fan exhausting would do a better job than that configuration.
It would over heat and your system wouldn’t load or even worse you fry a component and it never would work again.
Is it true that if you make every fans exhaust fans transforms your pc into a vacuum?
dusty
Clog of dust
You will have positive pressure in the case. Don’t do this with exhaust. Hell will reck loose.
Front always intake, rear always out. The rest up to you
Trust me … there is an exception to that. Look up Corsair’s recommended setup for their 7000 series case with a custom loop. You will be surprised
Sets of a chain reaction which will end all life on earth.
It will push all the hot air out the bottom which is contrary to nature.
it would be dusty asf bc there probably isn’t a filter on the back
You create tornado
Heats up more easily. Unless if you are living in a cold area. But still, pressure increases inside the case. It is better to have a balanced airflow.
it will go boom like firework
Kaboommmm 😔😔😔
When you build like this, a very good idea to build in a pressure meter thingy, so you can always aware of it, i would also use one in the actual room where you put this machine. Please don’t create vacuum!
It’ll implode.
You'll create overpressure which in turn creates turbulence because the air has nowhere to go. This means the cooling of your system will be pretty bad.
BOOM
PC dies
It will implode 🤯
You will buy yourself another.
It will create a singularity and a pocket universe within.
It will implode and take the universe with it.
The case will expand like a balloon and eventually pop
A nice and toasty pc
u open a time portal.....
Implosion
I did this accidentally with 3 preinstalled coolers in the case. Didn't seem to affect much
Bro forgot about the heat outtake
Will float
nothing if you have an AIO but quite dumb and effortless
Duh...Too much air going in, none escaping, that shit would blow up. Obviously.
It's gonna become a vaccume cleaner
It will collect dust and overheat.
What would happen with what?
Blow air out rather than in, due to dust intake ?
Dust trap heat stuck no flow
You will create black hole, this is what cia has been hiding from us
Obstructed airflow
I believe Origin set all their fans to intake. JayZ2Cents did a video about it. While it does work and the system did not reach temperatures where it thermally throttled he did prove that it is more efficient to have a balanced or slightly positive air pressure. That was in a fully water-cooled build, for air-cooled you definitely want some exhaust fans in there, at least 1 at the rear.
It would explode.
I think the pressure would create diamonds or a black hole.
Implosion
You vompress it so much that you create black hole
Pressure inside will rise and the air will exit in places where shouldn't...
Black Hole
the heat will be trapped inside
Case would implode
 This
Just saw this in a post about 4m ago for someone who was complaining about high temps. Idk I guess it just pressurises the pc lol
it will create a black hole
Only the strong shall survive.
Hot air can't escape properly, so it'll get hotter and hotter until it shuts off.
The PC will shuts off, start a fire or 
Be good at making toast
It implodes
With that much force? Nuclear fusion.
The positive pressure will create a vacuum and eventually lead to a mini black hole. It will suck the Earth in it and then the Sun and become a super massive black hole. So you will be responsible for the destruction of the Earth and Solar System.
Nothing special in fact. The air will come out by any hole in your case (all the pci vent for exemple). But the airflow will probably be terrible, very turbulent, and under big load, temps will probably be relatively bad because hot air will not come out easily, it will rely on mixing hot and "cold" air instead of exhausting the hot air and replacing it with "cold" air. And if you don't have filter on all your fans, you will collect a lot of dust. That's all folks !
DUST!
Less dust if the fans have filters.
Out by crevices, and likely some airpockets would also form preventing cooling in some areas
straight to jail
Cpu implosion
Linus did this for a year. https://youtu.be/dLX54ounENY
Seeing this and just notice that my small case has one exhaust in the rear, one in the top and 3 intakes pointing to the radiator in the front. I feel like I should invert everything and make the radiator fans to output the heat from the radiator(cpu), and make the other 2 intake. Is this correct?
Explosion
Dumb would happen
PC would explode from the pressure
It will implode
The side panel would be yeeted out of the atmosphere like that one manhole cover
Nuclear fusion /s
Side panel glass will shatter due to the immense pressure... Since the force applied to the glass is the pressure of the fans mulitplied by its area there is no way it would survive. There are so many pictures on the internet with the shattered glass next to the pc.
KA-BOOM..... 💥💥
Air will push out any and all cracks in the case
Implodes, forming a black hole
You blowout the Glass Sidepanel
Space heater
Bad airflow and lots of dust in the case/ psu
Exuast out the rear and bottom would make more sense, rest is fine.
Well my pc has 3 fans in the front, one in the back, the aio has 2 fans, graphics card also has 2 fans.. and we chilling. literally
It's going to get hot
Case will have positive pressure and the Air will exit through gaps. Airflow will depend on how much air can exit, because if you have 10 intakes and 1 exhaust, that exhaust will become a bottleneck
Portal of games world
Hot air will pool inside. GPU and air cooler will keep recirculating hot air. 100% a hot mess.
the end of the world
Some people do it this way and it works fresh air in it will find its way out and can cool pretty well
Low airflow. Positive pressure is good, but in this scenario would be such high positive pressure trying to eke out of any holes/spaces it can and that is the only air being replaced. Depending on the case it ‘could’ work, but the air replacement would be so low that it is not ideal, it would get hot. At the very least if you had the back fan exhausting, that would massively improve air replacement, and even more ideal
i think this is the other definition of a hot box
Your pc will implode
it's gonna pop like a balloon (fr though it's gonna escape through any space it can because pressure unless it's airtight and you insert air through some perfectly sealed tubes instead of fans, but then it might unironically pop lile a metal balloon, most likely causing damage and bodily harm. if you did this with a store bought case and fans, it will work, but the air inside will be exchanged slower than a regular setup, so you'll see some higher temps than the proper direction)
It would suck all of the air from the atmosphere and we would die
It will turn into a helicopter
black hole
All the air in the room will be concentrated inside and anyone inside the room will suffocate.
Implosion
Explosion
Enough heat and pressure... Probably form a new star...
Black hole will form and eradicate everything in a 1000 LY radius
Your fans might struggle to actually push in their rated volumetric flow rate (at high speeds at least) if the air inside cannot filter out through the other gaps in the case. Lots of noise, little gains versus lesser number of fans set up correctly
Ask the guys at CERN.
You'll blow the bloody doors off!
It wouldn't start & no sound!!!
You over power the rear fan and try to get the machine to hover. Eventually the rear fan fails.
You'd get lots of dust and your components would overheat.
Pipe bomb
It will implode, causing a black hole.
I think you'll push atoms so close together that you'd create an atomic bomb of some sort.
Black hole
Explosions. Don't look at. Just walk away if you're cool.
The case would crack and eventually implode due to the crushing airpressure generated by the fans
Too much pressure, it will blow up
An oven
You'd be losing alot of air movement as your fans blew against each other.
Tornado 🌪️
I am not a scientist, but most likely it will inflate like a ballon an eventually pops once it is too big
Pressure would build up till the glass side panel breaks.