Dust Filters and Fan Type.

[Sarah9780]

Hey everyone,

 

I'm running a pretty warm rig (3080 and 12700k) with a D15 in single fan mode. So far my temps have been really good with all my in game settings maxed! The problem is, I'm using a Lian Li Lancool II Mesh with 5 intakes and 3 exhaust, and I'm already noticing a lot of dust.

 

I picked up some Silverstone fan filters for my front and bottom intake that get here on the 19th, and I'm trying to decide if I should switch my fans to static pressure fans to pull through the filter. I really need to strike a balance between keeping this build cool and keeping some dust out. Is switching from my Arctic F12/14's to P12/14's necessary, and will is it likely to raise, lower, or make no difference to my temperatures? 

 

(I can never find a solid answer about this.)

[WoodenMarker]

If you're just adding dust filters, temps will increase. P12/P14's are newer and better but it's not necessary to swap fans.

How long has the system been running and where are you noticing dust?

[Sarah9780]

5 hours ago, WoodenMarker said:

If you're just adding dust filters, temps will increase. P12/P14's are newer and better but it's not necessary to swap fans.

How long has the system been running and where are you noticing dust?

System was actually just built. I had it running all day yesterday and noticed dust on the gpu and around the floor of the case (easy to see on the GPU's shiny metal). I dust my house bi-weekly, but I've got two cats and a dog, so only so much I can do. 

 

I was only asking because the F12/14's are airflow focused while the P12/14's are static pressure. I wasn't sure if the airflow fan would struggle with the filter. I'm prepared for the temps to go up from the dust filters, but I think it may be best in the long run (I at least want to test it).

[Ralfi]

Is the PC on or near floor level? Simply moving it to desk height may help (before you go & buy a new set of fans).

 

Put some  "" signs outside of the room?

[SavageNeo]

2 hours ago, Sarah9780 said:

I was only asking because the F12/14's are airflow focused

this is a common misundertsanding, yes the F12 vare airflow focused but actually the P12s still move more air, while beingm ore quiet, so going for F12s are not a good choice since P12s are so much better

[Dogzilla07]

If you want to put additional dust filters on the meshfilter front, that's gonna be too obstructive. And it's very likely the front is not the reason you get increased dust.

 

1. The case probably has openings through which air gets sucked it, without getting filtered.

2. Specifically around the GPU, the GPU fans are probably intaking air through the PCI-E brackets around the GPU and the mesh next to the GPU and you're getting dust in the case that way, because there's not enough static pressure when then PC is running + dust comes in when PC is turned off.

 

You need to tape all holes and entrances at the front part of the case which aren't the exact intake in front of fans (imagine cutting the case with a saw in the half from the top, anything towards the front needs to be blocked off). Air needs to only be able to move into intake fans.

 

Then you need to put smaller filters, and/or tape a bit of the back as well if dust keeps coming in there.

 

Arctic P12/P14 will make a decent difference compared to F12/F14 in regard to keeping a positive pressure to keep the air out when there's lots of secondary holes around the exhaust area. But if you tape it off, and reduce the amount of exhaust fans/exhaust area you could get away with F12/F14 (empty exhaust mesh/grill is comparable to an actual exhaust fan, in the way in changes the overall case pressure equation).

 

Additionally having a front top exhaust is counter-productive, and is what's probably causing a negative pressure pocket/vortex to form at the back and intake dust. In general the more fans you have in the case, the harder it gets to properly dust and noise proof it, and setup the airflow.

[freeagent]

Just buy a metro datavac and don’t waste your time with filters if you care about performance.