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Rear fan mesh

post #1 of 4
Thread Starter 
Hi all,

Quick question.

At this point, my rig is pretty damn quiet; everything is watercooled, and there's a lot of sound-dampening foam in the case, so the only things I can hear are my hard drives, which are at the front-bottom of the case.

I'm wondering, would my rig be quieter if I cut out the mesh on the back panel? The fan's spinning at about 700RPM or so. But I'm wondering, would the bigger hole created allow more HDD sound out, and therefore negate the improvements by not having the mesh obstructing airflow?

Anyone done this? Any comments?

Thanks,
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post #2 of 4
The first thing that comes to mind is that sound is a wave, so the fact of covering some x% of the fan with a mesh doesn't mean x% of the sound is kept inside, but much less.

In your case since the fan is 700RPM there might be some turbulences due to the mesh, but they should be like a low hum difficult to notice from more than half a meter. Removing the mesh would eliminate this humm while not affecting at all HDD noise. To silence HDD noise you could try this guide I made several years ago it worked great for many folks.
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post #3 of 4
If the only thing you can hear is the HDDs, cutting a fan grill at the back of the case won't make anything quieter (because you can't hear the fan currently anyway).

If the HDDs are the noisiest thing, you need to quieten them down (suspension is usually best). Nothing else will net you an improvement until you sort out the loudest component.
post #4 of 4
maybe try a low density foam based dust filter? idk about turbulent noise from the fans being created, but I would assume it would provide a buffer for outbound noise.
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