Case fan guards
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Case fan guards
Hi,
I have noticed my exhuast 120mm fan is producing quite a bit of noise in my system. I have seen people who have cut out the fan guard for it on their system. Is this the reason for it? Would that be the best way for me to reduce the noise but keep the flow?
Also what is the rubber strip which people put round it?
I have noticed my exhuast 120mm fan is producing quite a bit of noise in my system. I have seen people who have cut out the fan guard for it on their system. Is this the reason for it? Would that be the best way for me to reduce the noise but keep the flow?
Also what is the rubber strip which people put round it?
this is all info that you can easily find by doing a search, and i'd encourage you to have a go at finding the info for yourself, as there's a whole lot that's written elsewhere that i won't go into. basically, fan grills are cut to reduce airflow impedance - this has a swag of benefits, have a look into it. suffice it to say that whatever the rated airflow for your fan, it will not be getting anywhere near that with the fanguard in your case.
the rubber is called many things in different places, have a search and work out what it might be called near you. a common name is c or u channel.
the rubber is called many things in different places, have a search and work out what it might be called near you. a common name is c or u channel.
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Well, in many cases, the air flow is affected pretty badly from how restrictive the holes/slits may be for the fan mount. Using a hole saw or snips and cutting it out completely and replacing with a fan guard like this:
It can really make a difference in air flow and noise level (assuming that the restrictive mount is what is causing some of the noise, or that the air flow had to be increased in order to keep the system cool and with the less restrictive finger guard, you can cut the speed of the fan down, and thus, cut the noise level as well).
As for the rubber strip, you might be talking about a fan gasket like this:
or are you talking about U/C channel molding for the fresh cut hole like this:
It can really make a difference in air flow and noise level (assuming that the restrictive mount is what is causing some of the noise, or that the air flow had to be increased in order to keep the system cool and with the less restrictive finger guard, you can cut the speed of the fan down, and thus, cut the noise level as well).
As for the rubber strip, you might be talking about a fan gasket like this:
or are you talking about U/C channel molding for the fresh cut hole like this:
I am wondering, what is the reason these fanguards are fitted to cases at all? They can even be found in cases that are built for silence, in places where fingers are not an issue (like SPCR's own P180), so why are they fitted/stamped?
Maybe they play an important role in shielding the gear inside from electromagnetic radiation?
Maybe they play an important role in shielding the gear inside from electromagnetic radiation?
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One good thing about a fan guard is that it prevents stray cables from entering (and stopping) the fan.Camacha wrote:I am wondering, what is the reason these fanguards are fitted to cases at all? They can even be found in cases that are built for silence, in places where fingers are not an issue (like SPCR's own P180), so why are they fitted/stamped?
I agree about the annoyance of rubbish fan grills on cases but remember hat some of them will be structural, so have a think before cutting large chunks out of your case. If it DOES look particularly structural, either leave well alone or maybe just remove a bit of it (like every other row).
As has been mentioned many times in the past, the open hexagonal grills are probably the best after empty space or the simple wire rings. Still, case manufacturers don't want to have to deal with awkward details like making great cases...
As has been mentioned many times in the past, the open hexagonal grills are probably the best after empty space or the simple wire rings. Still, case manufacturers don't want to have to deal with awkward details like making great cases...
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CE rules. They have strict rules for things with moving objects in it (like cases with fans). when there arent any grills at all the manufacturer is responsibile for injuries. When there is a guard the manufacturer is not responsible.Camacha wrote:I am wondering, what is the reason these fanguards are fitted to cases at all? They can even be found in cases that are built for silence, in places where fingers are not an issue (like SPCR's own P180), so why are they fitted/stamped?
Maybe they play an important role in shielding the gear inside from electromagnetic radiation?
Thats also why the case manufacturers dont deal with 'awkward details like making great cases'. Because they are responsible then.
I dont know a thing about those RF noise.
But that doesn't account for cases where there are also fanguards in places where you can't get your fingers in normal operation. The forementioned P180 has two front inlets with dustfilters, so you have to disasemble half the case before you can even get to the fans.BlackWhizz wrote: CE rules. They have strict rules for things with moving objects in it (like cases with fans). when there arent any grills at all the manufacturer is responsibile for injuries. When there is a guard the manufacturer is not responsible.
Also, I've never hear of anyone getting seriously injured by a normal fan. I'd stick my tongue in one if I'd have to, although I wouldn't like it Only some high-powered varieties have some real potential of hurting you, but those aren't common.
I can imagine these things are considered a bigger problem in the US where it could costs a manufacturer a lot of money, but I don't think that is the sole reason.