Sound absorbing foam - really works!

tracerbullet

Golden Member
Feb 22, 2001
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I figured this made more sense to share here than anywhere else, since a lot of talk in this part of the forums is about noise.

I have a desk - one of those Office Max / Depot / Staples cheap ones, with a place for the PC case to sit in. It's boxed in on all sides, and has a panel up the back too - with a couple of holes for wires to run through.

I picked up 5 pieces of sound absorbing foam from this place: http://www.zzounds.com/item--AUR2WD01CG for just under $20, ordered this weekend and had it in today. I put two behind the PC itself, between it and the back panel of the desk. Two more went above it, they just wedged in place underneath the desk, but still above the tower. The 5th is extra for now I guess.

Let me tell you, I'm really impresssed with what this did. I knew it would make a difference, I just didn't realize how much. It made about the same amount of difference as going from 80mm to 120mm fans did, which for me was about the same as going from a YS-tech fan on an AX-7 heatsink to my T-right 900 with 92mm Panaflo. I can't give a scientific measurement in decibels of what it did, but I can tell you it's absolutely noticeable.

It ain't pretty, but it's under the desk and out of sight, so I'm OK with that. I'm really glad I got this stuff, and recommend - if you've been thinking about it, or if noise is an issue for you, definitely take another look at them!
 

tracerbullet

Golden Member
Feb 22, 2001
1,661
19
81
No, not at all.

I'm not sure the description made sense, perhaps a picture would help. I ripped this from the Office Max website in their furniture section - it's similar to what I have, although I don't have the door. Just the cubbyhole: http://www.sallee.org/greg/Other/cubbyhole.bmp

Basically what I did was line the inside of the cubbyhole (I'm getting tired of that word already) with the acoustic foam. Two pieces in back, and two pieces on top. Still plenty of airspace leftover in there, and it's out of site too.

The air goes in the front of the case, and out the back. It spills out the front of the opening like always. If I had stuffed the area with foam, I'm sure things would get too hot. but I didn't, I just used it to basically line the cabinet to absorb the noise - plenty of airspace left.