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Case fan makes strange noise.

post #1 of 5
Thread Starter 
Hey there, got an odd problem with a new fan.
The fan in question is a 80mm Scythe S-Flex, I just got it yesterday, it was working fine initially, but I needed to open the side panel for a while, then when I put it back the fan emits a strange noise that wasn't there before.
If that wasn't clear I'm using it as an intake fan on the side panel.

It's pretty hard to describe, it's a high pitch noise somewhere between a beeping and a humming sound, it's really piercing and after a couple of minutes it becomes painful to hear, so for now I removed the side panel again.

It's not an electronic sound and the noise stops completely when I remove the fan, so I know for certain that's the source of it.
Any idea what it could be? The fan is brand new and has no dust or anything on it so I'm not sure what gives.
post #2 of 5
two questions - does the fan make the same noise in the horizontal position as vertical? some fans just run better one way or the other due to bearing type.

if the fan makes the same noise in both orientations, perhaps it is vibrating against the side panel. are you using some sort of anti-vibration rubber grommets? they help.
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Alienware 15
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post #3 of 5
Does it make the sound if it is unmounted (like in your hand)? It can really only be two things; vibration or a bad bearing. if it makes the sound while it is in your hand then it is vibration and you just need to mount it with some sort of vibration dampening material.

If it is a bad bearing you can try oiling the bearing or simply replace the fan.

Here is how to oil your fans.

http://www.dansdata.com/fanmaint.htm
    
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post #4 of 5
Ehume has a GREAT fan lubing guide on here. And I have a ballbearing guide(in my sig) and Ive lubed PLENTY of fans of both types of bearings. Id recommend refering to Ehume's guide and relubing your bearings, coz it sounds like a bearing noise to me...
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post #5 of 5
Try dismounting the fan and running it in your hand, as Epitope suggested. Then mount it with these. Note the free shipping. Not only will they reduce vibration, they will give you a tiny separation from any grill, and prevent the fan's rubbing on the grill. I've tried all kinds, and these are the best.

And if it is a sleeve bearing fan, lubricate it before you put it back to work. Even if there is nothing wrong with it, it will last longer if you lube it periodically (see my sig).
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alpha updated
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secundus
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