Towercase ressonance (on pee cees)

[whabang]

I'm using self-adhesive foam rubber to keep my drives in place. It keeps the resonance away. Dunno how well that would work on fans, tho'. :-)

[Waccoon]

My PC is very silent, almost unhearable. I got some cheap engine soundinsulation mats, which are made of a kind of foam with aluminium foil on one side and sticky stuff on the other. I put that all over the inside of my case leaving as few holes as possible (otherwise sound will escape through the holes) and it worked very well.

The kind they put under car hoods?  That's a good idea, though it must take a lot of space inside when the case is closed.  I've also heard that old mousepads (with the cloth removed) work pretty well.  Still, nothing beats just throttling down your fans and improving airflow.

[QuikSanz]

Hi,

You can get some stuff at your local car stereo shop that maybe all of 1/8" thick. self adhesive, very dense, works well. I think it's called "Dynamat".

Chris

[Casper]

Waccoon wrote:

The kind they put under car hoods?  That's a good idea, though it must take a lot of space inside when the case is closed.  I've also heard that old mousepads (with the cloth removed) work pretty well.  Still, nothing beats just throttling down your fans and improving airflow.

Yes, that's the kind. It was available in 10mm thickness where I bought it so there was no problem fitting it on the inside of the case and it's not taking up much space either. It was dirt cheap too, like $4 for half a square meter.

The andvantage the sound insulation is that it will dampen all sounds from the inside of the case. I have a pretty silent WD harddrive in there and with the insulation even the noise from the drive heads is almost unhearable.

[Floid]

There was/is an automotive spray product called "Noisekiller Blue" that I always wanted to try; designed for stereo installation deadening, apparently a very light thin foam, for a similar effect to the asphalt sheets without the weight and sticky mess.  (Water soluble cleanup before drying.)

Apparently it was or wasn't folded in under someone else's "Roadkill" brand, which used to belong to a competing, more tarry/less useful spray... I never managed to find the stuff, not that I was looking hard, and my current tower is an IBM tank with few noise issues, so it's been less of a personal concern.

[Floid]

GadgetMaster wrote:
A good way of eliminating resonance I once read about was to suspend the case fans from rubber bands. I don't know how you would do that the PSU fan though.

Oh yeah, the noise-tolerable IBM has the CPU fan (Pentium II exhaust-style, so it's mounted to the case, not the processors, with one of those plastic ducts) mounted on little rubber nipples instead of screws; I believe it's Antec who are now marketing the same bits of rubber to normal humans.

Probably a little foam weatherstrip on the edges of the fans (where they'd press to the case), with normal screws in rubber washers, could approximate.  Or strips of rubber band, anything 'gaskety' to keep the rattle from coupling.

IBM were also nice enough to drill the HD mounting holes wide and insert rubber grommets, which help as much; for those without, there's the "two rubber bands and pencils" trick for suspending 3.5"s in 5.25" bays.

[GadgetMaster]

Karlos wrote:

I can't think of anybody who uses suspended fans...

/me peers over at GadgetMaster's 1200T... Yes, suspended fans are pretty quiet ;-)

LOL  :-D

I used plastic ties rather than rubber bands. Not the same effect but surreal looking nonetheless :lol:

[Floid]

Hm, I think the "NoiseKiller Gray" at NoiseKiller.com is what's become of that product, but I'm not really sure, and they haven't updated since 1999.  Dropped them an email for correctness's sake, and I'll report any findings back.

[adz]

Argo wrote:

Quote:     Argo wrote:  Here I was thinking I was nuts having a Jet Turbine on my CPU.       What...a Coolermaster Aero 7+???

Close, I have the lite version.

They are actually quite good at cooling, not to mention quiet compared to a high speed 80mm fan. I did find that the Aero 7+ was a tad bit tricky to mount with the fan still attached. Is the light version all copper like the plus??

[Argo]

Is the light version all copper like the plus??

No, the Heatsink is aluminum with a copper core.

[adz]

Argo wrote:

Is the light version all copper like the plus??

No, the Heatsink is aluminum with a copper core.

Probably the same sink that my X-Dream uses, I've been able to push quite a few extra MHz out of my 2500+ with that.