Is this placement correct?

[mclaren85]

I've decided to put one more fan on the top of my case and bought Arctic Bionix F120. I mounted the fan in a way that blows the heated air out of the case. But in order not to block the outlet, I've cut the magnetic dust filter. Is that the correct thing I've done? Please see the attached pictures.

 

[Ferrum Master]

You overdid it dude...

 

[mclaren85]

You overdid it dude...

You mean unnecessary?

 

[Ruru]

Personally I don't ever cut the filters and I would've put the exhaust near to the CPU cooler as that's where the heat gathers. But I guess that it's fine as it is.

 

[freeagent]

In my eyes, with the top exhaust at the front of the case, you have ensured the CPU will get a steady dose of warm air to feed it. I would move it to the rear position. But if you have already tested both positions don't listen to me

 

[thunderingroar]

i doubt that fan does anything to your temps. could potentially even make it worse since it just exhausts the fresh air from the front intake fans

 

[Sybaris_Caesar]

RIP filter. You will be missed.

After some research I set the forward top fan as intake and back top as exhaust. Ideally I thought I'd put both as exhaust since hot air rises and top exhaust is most efficient. But from my research it looks like setting both top fans as exhaust or more specifically forward top fan as exhaust, steals air from tower CPU cooler.

As for the dust filter, at idle I keep it vanilla

At load like gaming, transcoding snd mining I just slide the filter forward to cover only the intake fan like this

 

[claes]

In my eyes, with the top exhaust at the front of the case, you have ensured the CPU will get a steady dose of warm air to feed it. I would move it to the rear position. But if you have already tested both positions don't listen to me

^This, and I’d bring the filter back if available

RIP filter. You will be missed.

After some research I set the forward top fan as intake and back top as exhaust. Ideally I thought I'd put both as exhaust since hot air rises and top exhaust is most efficient. But from my research it looks like setting both top fans as exhaust or more specifically forward top fan as exhaust, steals air from tower CPU cooler.

As for the dust filter, at idle I keep it vanillaView attachment 238901

At load like gaming, transcoding snd mining I just slide the filter forward to cover only the intake fan like thisView attachment 238902

With respect, your front fan is pulling in the air that your rear fan is exhausting. Did you test?

 

[mclaren85]

i doubt that fan does anything to your temps. could potentially even make it worse since it just exhausts the fresh air from the front intake fans

frankly speaking, there is no change after the installation. I have move the fan to a closer point but there is no change.
The temps are 39-40 C

 

[Cutechri]

Move it near the rear exhaust fan, I never place top exhausts there

 

[Jose Jeswin]

i run a similar setup....i have not cut the filter yet...i just remove the filter while playing a game..

 

[DeathtoGnomes]

frankly speaking, there is no change after the installation. I have move the fan to a closer point but there is no change.
The temps are 39-40 C

is that temps while gaming? or idle?

 

[Bill_Bright]

The TOP is fine as an exhaust fan. That said, I also prefer front to back flow, but if no room in back for another exhaust fan (or another front intake fan), I too would use the top if additional cooling was needed.

I don't understand why you have a filter on an exhaust fan. That makes no sense. You want filters on the intake side.

Also, you want to make sure you have slight "over" or "positive" pressure in the case. That is, you want your intake fans trying to push more cool air in rather than the exhaust fans pushing air out.

Positive pressure ensures all the air coming into the case is routed through the filters - and that is what you want. If "under" or "negative" pressure, you create a vacuum in the case. That is bad because then dirty air will try to get in through every crack, USB port, and connector. Not good.

You don't want to over do it, however. If you have too much over pressure, that can actually restrict the desired "flow" of air through the case which can result in pockets of hot, stagnant air. Not good.

is that temps while gaming? or idle?

I second that question. There is nothing wrong with 40°C. Even if that is at idle, that is a bit warm but nothing to be concerned about. But more importantly is your temps when your system is being taxed.

 

[Cutechri]

i run a similar setup....i have not cut the filter yet...i just remove the filter while playing a game..

View attachment 238909

View attachment 238910

View attachment 238911

All I can see that front top fan doing is dragging in the hot air that the rear top fan is exhausting...

I don't understand why you have a filter on an exhaust fan.

My Pure Base 500DX comes with a filter on the top exhausts. I leave it on because it looks horrendous without it lol

 

[eidairaman1]

I've decided to put one more fan on the top of my case and bought Arctic Bionix F120. I mounted the fan in a way that blows the heated air out of the case. But in order not to block the outlet, I've cut the magnetic dust filter. Is that the correct thing I've done? Please see the attached pictures.

Good grief, just step away

ATX is front intake, back exhaust, bottom intake, top exhaust. The mesh is to keep FOD from striking top fans

 

[mclaren85]

is that temps while gaming? or idle?

Idle and light web browsing. During the game (F1 2020) I see 45C

 

[freeagent]

All I can see that front top fan doing is dragging in the hot air that the rear top fan is exhausting..

Have you tried it? Did you check the temp on the exhaust vs what is being fed to the cooler? Just curious. I ran that same setup using 120x38s and in my Meshify C and I did not see the exhaust warming the intake in any kind of meaningful way. I only had a 165w GPU then.

I don't use any filters or mesh.. so nothing to slow the flow other than the stamped grille at the rear of the case.. The top is stamped, but right now I have it sealed.

 

[Bill_Bright]

My Pure Base 500DX comes with a filter on the top exhausts.

Okay. I understand. Your case is designed to support water cooling with the radiator placed on top. In those scenarios, that position is often used for intake so a filter then makes sense.

The top is stamped, but right now I have it sealed.

If no fans up top, I would seal it too. Otherwise, it might disrupt my desired front to back flow - or let dust in.

During the game (F1 2020) I see 45C

That is excellent! So what's the problem.

I hate fan noise. I mean I really HATE fan noise. If the case sits on or near the floor, a top mounted fan might be audible. And that would not be good, IMO.

 

[Cutechri]

Have you tried it?

No, that was an assumption - all I ever used was the traditional two front intakes, two rear exhausts.

Not the most flattering picture, I know - I had just disassembled the case for cleaning, and decided to take a picture of it. But you can see my fan setup properly.

 

[freeagent]

No, that was an assumption - all I ever used was the traditional two front intakes, two rear exhausts.

View attachment 238928

Not the most flattering picture, I know - I had just disassembled the case for cleaning, and decided to take a picture of it. But you can see my fan setup properly.

There is a good chance I would touch one of those fans inappropriately if you weren't looking.. or maybe even if you were..

 

[Cutechri]

There is a good chance I would touch one of those fans inappropriately if you weren't looking.. or maybe even if you were..

I also love my Silent Wings. I doubt I'll ever use any other fan unless they come up with a new version by the time I do a complete re-build around Nova Lake's release.

The chromax NF-A12x25 aren't too shabby either, still the best 120mm fans in my opinion. But I am a 140mm enthusiast, so...

 

[freeagent]

I also love my Silent Wings. I doubt I'll ever use any other fan unless they come up with a new version by the time I do a complete re-build around Nova Lake's release.

The chromax NF-A12x25 aren't too shabby either, still the best 120mm fans in my opinion.

I am thinking about swapping my fans out. These fans are pretty intense. I wouldn't mind a little more quiet but with the same performance or better would be nice.

 

[Cutechri]

I am thinking about swapping my fans out. These fans are pretty intense. I wouldn't mind a little more quiet but with the same performance or better would be nice.

While the Silent Wings aren't the strongest fans on the market, they still go toe to toe with the Noctua NF-A14s I tested, but with significantly less vibration and they're somehow quieter. I've also found that I don't really need strong fans. The 60 CFM of these fans at top speed (1000 RPM for my model) is more than enough for the sub-300W heat output of my whole build, while still being whisper quiet.

Major props to be quiet! for using actual licensed Panasonic FDB and not some fake, sleeve bearing disguised as "FDB" - and for having these pushpin installation mounts. They are such a lifesaver and much less of a PITA to work with compared to screws or those long anti-vibration mounts Noctua gives you.

 

[freeagent]

Panasonic makes good stuff. I have 3 Panasonic fans that ran nearly 24/7 from 2006-2021. They still run but get some internal vibration at full speed, so time to retire.

 

[mclaren85]

The interesting part is, I couldn't find magnetic dust filter anywhere.