Should You Mount Your Power Supply Fan Facing Up or Down
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- Опубликовано: 15 ноя 2018
- Should You Mount Your Power Supply Fan Facing Up or Down
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Re-uploaded due to bad audio and minor mistake.
Should you install your PSU facing up or down?
Is it really that important in which way the psu fan is facing? well that depends on many things, which we will cover in this video.
Down seems to be the most popular way nowadays of mounting a power supply, but I would not recommend fan the fan down if computer is sitting on a carpet.
The large fan will draw air in thought the large fan and push it out the back of the power supply.
Also PSU intake fan will suck cool air into the psu unit from outside or inside the case, depending which way you have the fan facing.
Just remember to have enough room for the fan to draw in air. So if you have the Power Supply in an enclosure, its probably going to be betting to face it down.
There is not much difference facing fan up or down
with PSU with the fan facing downwards
with PSU with the fan facing upwards
So just make sure to keep the computer off the ground if you can and remember to install your PSU with its fan facing a good airflow source and don't restrict airflow in anyway and you be OK.
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#PowerSupplyOrientation #PowerSupply #PowerSupplyFanFacingUp #PowerSupplyFanFacingDown
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Re-uploaded due to bad audio and minor mistake.
Thanks
Thanks for another great video (i watch all of yours) Britec09.. Going abit off topic from psu and fan directions. I remember you saying you have turn off windows update's all together for now. what about security updates? what version of windows 10 would you recommend for a fresh install at this moment in time? Considering how unstable windows 10 has been lately . Seem's like after every update, there is a new bug/problem to sort out. Can you please give me same advice? Cheers
Thanks for watching.
Thanks for the video. My Corsair TX550M will only mount in the case (Sahara C500B) with the fan facing downwards otherwise the screw holes don't line up. The case will be on carpet but it has quite a bit of clearance underneath thanks to deep floor standoffs and mesh to catch the dust.
With the kind of dust we have in my part of the world, carpet or not, I think it's a good idea to keep the fan up so that there's minimal dust intake. That way you don't clog up the dust filter every now and then.
Depends if you are in the northern or southern hemisphere. 🤣🤣
lol
You want the ambient temp around the PSU to be low as possible. Face down is recommended
I appreciate your opinion.
We ours facing down on one of our computers and it just went out after 3 years. Was 80+ Bronze and decent unit. The bottom had a lot of dust we never were able to see or clean. So put that fan facing up!
Consider with the fan down, it will draw in dust, even if there is an airspace, below the case. Not much of a problem, if you clean out your case frequently. Some cases have provision for a filer at the outside bottom, but it's still inconvenient to access it for cleaning.
Thanks for another great video (i watch all of yours) Britec09.. Going abit off topic from psu and fan directions. I remember you saying you have turn off windows update's all together for now. what about security updates? what version of windows 10 would you recommend for a fresh install at this moment in time? Considering how unstable windows 10 has been lately . Seem's like after every update, there is a new bug/problem to sort out. Can you please give me same advice? Cheers
I am still running 1803
@@Britec09 Can you give me the link for the 1803 download or the one you would recommend the best version to download please?
The point you make about having it facing up and the thermal bit was so obvious but i never had thought about it , as i understand the fan is off most of the time as the heatsinks do the heavy lifting , with the vent at the top the hot air will rise (duh) and the fan will come on even less than with it the other way round , will be turning my psu around today
Hi Brian, good information vid :)
Is a corsair vs650 is enough for a sapphire pulse vega 56, ryzen 5 2600, 2x8 go ram 3200mhz and a watercooling coolermaster masterliquid 240 ??
My GAMEMAX 850W Power Supply (Fully Modular, 80 Plus Gold) is designed to have the fan point up as in this video. If you flip it, all of the text for the cables is upside down. While my case has a opening on the bottom with a filter, I installed it fan up and it works great.
Hi Brian, I opine: if a PC is going to be placed on the floor with fan taking ambient air in, and there was an issue re dust in, simply putting the PC on a piece of appropriately cut Formica or similar would protect it from a carpet. Extracting dust out of the camera without a hard surface would possibly cover a carpet with dust, but if the priority is to keep the computer clean then having the PSU in the direction you have yours, would anyway seem to achieve the result you wish.
Thanks Jan
My computer sits on two 12x12 inch black flooring marble. Works great and also keeps it cooler.
Is it me or does your PSU have mounting screw holes that allow it to mounted upside down as all the PSU's I look at have mounting holes that onl;y allow one orientation?
I’ve been working with and working on all kinds of computers since 1989. I can tell you from years of testing, trial and error, and building so many custom systems and repairing systems, that it simply does not matter the orientation, it is only situationally dependent. If you have a top mount PSU, the fan faces down (which pulls hot air through the PSU, thus invalidating arguments of “OMG HOT AIR THROUGH PSU BAD”, we’ve been doing that for decades, and now it’s a debate?
If you have a bottom mount PSU with liquid cooling, face the fan down. If your PC is on the carpet, or a dusty floor, the fan goes up. Period. Case closed. I have tried to prove one way to be more effective over the other, especially thermally, and found near zero difference.
It's hard to find REAL information on the net.
Rumers, and speculation should be policed, but there are just too many nuts providing incorrect information.
Thanks for the heads up, and keep making good info for the masses.
RB
Thanks RB
Since the fan in a power supply is to remove the generated heat from the power supply it would make sense to face it outward but if not elevated from the floor it defeats the entire purpose. I must have missed the change but power supplies usued to always blow out the back of the case for that exact purpose .... when did they change or is this something with just a few limited power supplies????
the inside of my case gets preety hot especialy in the summer(32 C +) ,so hot that i need to take the side panel off .My psu is facing downward pulling air in its on a cool floor but i got no fans in the front. And only the default 1 fan at the top 80mm ish 1200 rpm next to the CPU my GPU is a r9 270 that makes a good amount of heat (i think) .Would you suggest switching the PSU to pull warm air in from the case?? And won't that damage the PSU by not cooling it properly?
If you are using LC than put PSU with fan facing down - in case you have a leak the coolant hopefully wont get inside the PSU
I usually tell people who insist on keeping the GPU fan downwards as well as placing their computer on rug to use a piece of shelving on the bottom of the computer, some plush rugs like you said will completely clog the GPU filter area because of the weight of the system compressing the rug. At least a board will keep it flat and insure positive ventilation. I think the thought process for most is if my case has a filter then I should always turn the fan down, well like this video states that’s not always the case. No pun intended.
Yeah keeping it on a bit of wood and board would be a great help and facing the fan down would not be a issue for me, i have found a case holder which I have ordered, which should bring it off the floor.
@@Britec09 I have a stand for my case that's on wheels but the bottom is completely open. I use that stand with my PSU fan facing down so it always pulls cool air instead of warm air from the GPU.
I would face the fan upwards if 1) The PSU has hybrid fan control, meaning it will not spin when on low load. This way heat can escape easily. 2) The case has excellent dust filters, otherwise all the dust will settle in the psu itself - Especially if it's positioned at the bottom. 3) The case is sitting on a carpet. That will kill any airflow from the bottom of the case and will also suck in all kinds of dirt.
I personally have it facing downwards. Why? I have bottom dust filters, no carpet and any dust landing inside the case from the intake fans will not get inside the psu. But it will get in there from the bottom regardless, just less. I think :p Who cares. All my power supplies have always lasted well over 5 years.
You're also not heating up air with components, before it gets a chance to cool the PSU
Does this affect noise levels ?
What can I do when case only allows seating the PSU in the bottom, fan facing floor, and no other option?
Thank you so much for the advice
Thank you for being you
W.Bush
i choose to put my PSU facing down at first few months.. my PC behavior is weird. weird noise weird restart. my case have 3 big fans in the front for intake,but only 1 fans at the back for exaust. and the glass on the right of the case is very warm. after i chose to put my PSU facing up i can feel it with my hand that warm air pumped out faster and only slight warm on the glass case. not only we need to think how to pump cool air into the case. we also need to think how to pumped out that warm air out from the case or it will get trapped.
FYI my temp in idle/ light use only 36-40 which is normal (GPU-Z) but i think all the software can't read the real air temp inside your case. i get weird nose from PSU and weird restart often. but now its gone. thank God
Thank you Brian for this informative video. I have always suggested to people to not place the computer on the carpet, and if they need to do it, cut a piece of wood and place the computer on the wood. In addition, installing the PSU with the fan up makes cable management a bit more cluttered. I can see why you installed this PSU with the fan up though, being that there is no rear exhaust fan.
A good psu like the one you got there is not even gonna turn the fan on unless the computer is really working hard. So I would not expect it to do anything at all if the fan is facing up! Zip! Makes no sense! it is better to rely on dedicated case fans front and back.
i am flipping ym PSU.. no more dust filter stress. I forgot to clean it often.. mounds of air restricting dust.
well extra juice is needed if your built is high end with that discrete graphic card. I've seen 15 year old pc's still running with that horror of psu which probably is 250W no brand. depending on your built really. Current ryzen 3 APU's with low end mobo and a couple of fans, ssd or nvme, rgb rams, a cheap 500W cooler master can get the job done for 5-10 years the least. Leave the rest to god lol. btw I have my fan faced down for years without any problem at all, the preference should be where you want the logos to be, some are printed awkwardly at the side that u need the fan to face down, If you want the logo to be upwards, then fan goes up. Depending on brand and printing/emblem.
Thanks Brian , for your years of experience and some good "o" common scene
Cheers Earl
My PSU is a 850W Thermaltake which is over 10 years old it's on the top end of my case with the fan facing downward so the air can flow without being impaired which can happen when a PSU is on the bottom of the case & there is not enough clearance from graphics cards. I gave it a deep clean a few months ago with a vacum cleaner & cotton buds to remove all the dust devils that had accumulated over the years (it's amazing how much I found in the components & corners) without taking it apart & affecting it's lifetime guarantee.
I HV cabinet that he top mount PSU... how should I place my PSU..thnx
10 years old god damn I hope my psu lasts that long. Though I’ll probably need a upgrade before then
Using a psu as an exhaust is a terrible idea. Get a fan or two and use them for that purpose instead.
may I ask why you are placing your hands inside the case while it is turned on, isn't that a bad idea?
Well I wouldn't condone it, but psus are connected to the mains so if he was to pass any static into the psu it would ground it
Anti static mats maybe
It's not very dangerous, as the highest voltage is usually only 12V. The dangerous voltages are inside the power supply. If you ever open that, be very careful, even with the power cable disconnected, because there are big capacitors, which store a considerable charge. Aside from the PSU, the main danger is touching a spinning fan.
I bought a PC case where the PSU have to be mounted on the top of the case and there isn't any holes or mesh on the top of the case so the only option for me is to mount the PSU with the fan down meaning it will pull out air from the box and will take it out. This case has only one exaust fan and 0 intake fans.
Gotta get some fans
I have had it facing down like an idiot but changed it also the fan was getting to loud probably from facing down. I changed the fan but I had to rig something up I used a smaller fan and had to zip tie it in place and run the wire through the screen but its working thats all I care about .
So. If you mount it "facing down" and the fan isn't turning, where's the heat going to go?
Whereas if it's "facing up", it's going to rise out of the fan by convection at least.
out the side. Hot air goes to cold air. it doesnt care if it has to go sideways a bit. also: hot air rises is a overstated myth. Air goes where the fans push it.
Ok I have a question, I don't know if you know about overwatch. But almost all the time when I am playing it. I have task view keep popping up when I didn't want it to. Like 5 or more times during the game. If you could help. Me fix it. That would be nice! And great channel!
Wtf ?
My Corsair fan is not turning on; how do I test the fan ?
it should turn on briefly during powerup
At the end of the day it doesn't really matter.
You're right, I put mine in wrong the whole time and I've never had an issue.
😒 Face the Fan into the case, Keep It Old School ✌️😎
yeah its was always like that years ago.
But if i have a psu that is mounted on the top part of the case,do I mount it with the fan up or down?
Down
Down will be better. But if u set top, it does not mean that ur psu gonna burn.... it Will work stability
then you change the case, look for the bottom ones
i thought psu fans are blowing air inside the case instead of sucking air so i faced the fan down to avoid blowing hot air into my gpu lol
Facing up you'd get the same effect just the other way around. The PSU will suck hot air from your GPU. Plus your GPU is trying to get air and your PSU right under that as well so they're fighting each other for air.
It didnt make really sense to my, so when i was chaning my build i took power sup from old PC which was replaced so half a year old and in new case it was power sup on down side, (old pc up side) and i though like it would get warm if i put in fan facing down, but actually it was just making powersupply hotter and it fans were making so much noise, as soon as i faced power sup fan down, everything run smooth, no fan noise, temp better (case on glass table)
WHat do you wana say ? Face up or down, which is better!
What? Now I'm confused by your words.
Huwhat?
I thought hot air moves upwards and this will remove cooler air from the intake and throw it out
And also it could suck some of the air the GPU needs
Thats the same thing i was thinking...so which is the correct position upward or downward?
I would still put it upwards since not all hot air manages to get out, especially if you dont have fans on the top of the case and if your GPU produces a lot of heat so there will be a lot of hot air around the GPU and i wouldnt worry that the GPU wont have enough air since if you have fans on the front of the case then those will be blowing air directly to the CPU and GPU and there will be enough air for those.
@@AmeerQ99 I know this is an old comment but a good general rule of thumb is that the back of the fan is where the air gets pushed out for example in the video that psu fan is facing up (you can tell because there’s no wires on that side) the air will go Into that psu or down through the fan and out the back of that fan.(for anyone wondering I used the psu as an example because the psu was the Main Focus of this video)
@@facade0074 i see... so position would be facing upward but dependa bcs some casinga have air ventilation for PSU to absorb Air
what if the power supply is on top of the cabinet?
Then your case is old or meant for a rack/server. Top mounted power supplies should always face downwards as they will help get rid of hot air in the case.
@@vBDKv whats the number 1 law of thermodinamics and heat
@@user-qc9jz5vx2f hot air go up?
Yes, whats the airflow in the old PSU, i have one, they throw air away
But why noise level increased while mount on top of the cabinet?
Always put a small board that fits the length and width of your computer if you're going to put a computer on your carpet never ever and I repeat ever leave it on a carpet surface touching your computer's feet
Power Supply Fan Facing Up .GPU heat goes into PSU
Yea, im about to flip the PSU since my GPU is producing a lot of heat and maybe it will help a little bit with the airflow
@@jovanvita2010I know your comment is 3 years old but I just did the same
Hi
While I realize this video is old regardless there is no debate. If you have good airflow and your PC isn’t on carpet(which is terrible either way) the PSU fan should always be facing down provided you have exhaust vents under the case. The only time it should be face up is if you have no exhaust vents on the bottom or have it on carpet both of which isn’t good. When the fan is up it draws in hot case air into the PSU. This makes it hotter and also makes the fan spin faster and more often as well. So it’s hotter, more noise, and shortens the life of both your PSU and its fan. That isn’t a debate that’s just how it is. Also if someone can afford to buy and build an entire gaming/work station PC they can afford a damn 10 dollar exhaust fan for their case. That’s just ridiculous not to have one which in the case of this video will make the PSU fan EVEN more loud and hot.
I would partially agree to this. The air inside the case should not always be this hot that it is really badly affecting your psu. Its depending on the airflow management. Currently I have my psu fan facing up with not much noise comming from the psu. Probably because I have an 200mm intake fan at the front and on top of my case an aio cpu cooler radiator with two 140mm fans pulling the air out at the top. The only big heat source is my gpu which is in the airstream facing upwards. I am open for discussion 😉
There are advantages and disadvantages, to mounting the PSU facing in either direction.
It's more of a situational issue (already addressed) and perhaps an aesthetic one as well.
Most, if not all of today's modern PSU's. Are designed for mounting in either direction.
Some PSU's, which are non-modular or semi-modular, with cables permanently attached to one side or the other.
Could present an aesthetic issue, which may interfere with cable management.
😏 yeah i was thinking the same, if u like tall full tower cases with a bottom psu, u better order cable extensions if u want to flip the psu upside down! at minimum order an extension for the cpu 4/8 plug 😋
Thanks for sharing Geo
@@Britec09
You're welcome, cheers. 🍺
What if som1 places a psu wrong for a good 2 months playing around 2-3 hours a day ?
trial and error
Computers should never sit directly on carpet. Carpet can carry static electricity which is obviously not good. Place some wood or cardboard under the computer. Just something that does not conduct electricity.
Computer rack is on order :)
its grounded and its a metallic case, why would it matter?
Been putting my pc on the carpet for a decade with no issues.
I think the terminology is confusing. To me, the way a fan is "facing" is the direction in which it is moving air. So an intake fan on the top of the power supply would be moving air down into the PS and is facing down, but is on the top.
Some power supply got rgb. Waste it if facing down
up is always bad or is blowing hot air in graphics card or graphics card blows in psu
No one cares Brian tbh it's your pc your rules ???
This is the internet, everyone cares lol
No lol r you stupid? Oh yeah your own rules who care till your pc explode psu is one of the important
@@Britec09couldn’t be more true 5 years later