Towercase ressonance (on pee cees)

[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.

[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.