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ML fan problems


Dave65
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Hey guys, first let me say I love the maglev fans but I do have one problem with them, I have been experimenting with fan placement, when I put my maglev 140mm pro fans in the top pulling air in I get a buzzing sound, but blowing out they seem fine.. My case is a Phanteks s400 and an NZXT 340 elite, both cases have the same problem when fans are positioned to pull air in.. Any feed back on this would be helpful..

 

Thanks1

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This likely means the exact position of the fan blade in relation to something else (case panel most likely) is very close. The normal way to deal with this is to use rubber gaskets or spacers to push the fan further away from the top mesh (?) or whatever is on the top. In would be rather unusual for any fan to have natural bearing noise when blowing air from top to bottom. Many fans struggle in the opposite, inverted position. The ML series should do neither because of its bearing type and you are looking for a proximity issue. You might also clarify is this is speed related. At 2000 rpm+, there is going to be some interaction with the mesh unless you keep it several millimeters away.
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This likely means the exact position of the fan blade in relation to something else (case panel most likely) is very close. The normal way to deal with this is to use rubber gaskets or spacers to push the fan further away from the top mesh (?) or whatever is on the top. In would be rather unusual for any fan to have natural bearing noise when blowing air from top to bottom. Many fans struggle in the opposite, inverted position. The ML series should do neither because of its bearing type and you are looking for a proximity issue. You might also clarify is this is speed related. At 2000 rpm+, there is going to be some interaction with the mesh unless you keep it several millimeters away.

 

Well that makes sense for sure, I will try spacing them..

The buzzing happens low and high speed, buzzing is minimal on low and gets worse when fans ramp up so the sound is pretty annoying..

Will give spacing a shot, thanks much for your input..

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If you have trouble tracking down rubber square gaskets, you can also use rubber washers from your local hardware store. Find some thick ones. In theory, the gasket creates a better seal, but that is not overly relevant unless you have some other issues or pick up some other sounds (air noise). I have several round frame fans I do this with and it works just fine.
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