It is currently Thu Dec 12, 2019 6:09 pm

All times are UTC - 8 hours




Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: Extreme Sound Damping
PostPosted: Thu Jul 30, 2015 1:47 pm 
Offline

Joined: Wed Oct 20, 2010 11:11 am
Posts: 7
I'm trying to work out how to make fan's sound dampened as much as possible so I come across the thought of using a gasket, rubber washers, long screws which span the whole width of the fan and fastened together. I'm going to trial it on my current machine before building my next. The images below should clarify.

Gasket
Image

Screws

Image
#6-32 x 1.1/4 Imperial Slotted Pan Head Screws

Image

Anyone got any thoughts on it?


Top
 Profile  
 
 Post subject: Re: Extreme Sound Damping
PostPosted: Thu Jul 30, 2015 2:19 pm 
Offline

Joined: Fri Aug 05, 2005 3:29 am
Posts: 1680
Location: UK
I have used the gasket pictured which is the Acousti AFG120B. The main point of the combination of the waisted screw, washer and gasket is to give a soft mounting. So the screw only needs to be tightened just enough to compress the washer and gasket sufficiently to close the gap between the fan and the case. Nothing firmer than that is needed. The plain or waisted area at the top of the screw means that it does not contact the fan mounting hole giving a floating fixture which should help reduce fan vibrations to a minimum. However many fans now come with anti-vibration pads either fitted separately - for example Noctua - or built into the frame and may also be supplied with soft rubber mounting pins. So the need to buy and fit gaskets is questionable.


Top
 Profile  
 
 Post subject: Re: Extreme Sound Damping
PostPosted: Thu Jul 30, 2015 4:56 pm 
Offline
*Lifetime Patron*

Joined: Sun May 21, 2006 9:09 am
Posts: 2269
Location: Northern California.
IMO, far better off just using rubber fan mounting grommets.

_________________
Help SPCR keep the lights on, use these links when you buy: NCIX, Amazon and Newegg


Top
 Profile  
 
 Post subject: Re: Extreme Sound Damping
PostPosted: Thu Jul 30, 2015 7:44 pm 
Offline
Moderator

Joined: Thu Oct 06, 2005 4:36 am
Posts: 7363
Location: Monterey Bay, CA
xan_user wrote:
IMO, far better off just using rubber fan mounting grommets.

+1

_________________
1080p Gaming build: i5-4670K, Mugen 4, Asrock Z97 Anniversary, MSI GTX 1050 Ti Gaming, 8GB 1866 RAM, Samsung 860 Evo 500GB, Crucial MX100 256GB, WD Red 2TB, Samsung DVD burner, Fractal Define R4, Antec True Quiet 140 (2 front + rear) case fans, Seasonic SSR-550FX. 35W idle, 45-55W video streaming, 170-200W WoW, 318W stress test (Prime95 + Furmark)

Support SPCR through these links: Amazon and Newegg


Top
 Profile  
 
 Post subject: Re: Extreme Sound Damping
PostPosted: Thu Jul 30, 2015 10:47 pm 
Offline

Joined: Sun Oct 14, 2007 4:32 pm
Posts: 77
Location: US
Rubber (or silicone) grommets by themselves are much more effective at decoupling the fan. Gaskets can serve another purpose in this case; I use them to seal the gap around the fan created by the grommets.


Top
 Profile  
 
 Post subject: Re: Extreme Sound Damping
PostPosted: Wed Aug 12, 2015 4:50 am 
Offline

Joined: Fri Jan 30, 2015 1:18 am
Posts: 64
Location: FIN
Placid wrote:
Rubber (or silicone) grommets by themselves are much more effective at decoupling the fan. Gaskets can serve another purpose in this case; I use them to seal the gap around the fan created by the grommets.


Have you found any noticeable drop in turbulent noise compared to not using a gasket?

_________________
Cooltek U2 / TY-147A - Z77N-WiFi - i7 3770 / Macho Rev. B passive - GTX970 / AC Mono Plus - SX900 64GB - UV400 240GB - Valueram VLP 2x4GB - CM V450S


Top
 Profile  
 
 Post subject: Re: Extreme Sound Damping
PostPosted: Wed Aug 12, 2015 5:29 am 
Offline

Joined: Wed Jun 13, 2007 10:12 am
Posts: 5275
Location: ITALY
est1984 wrote:
Anyone got any thoughts on it?

It's faintly reminiscent of the NoiseBlocker BlackSilent Pro bundle: in that case, I never noticed a clearly audible difference.

_________________
Regards,
Luca

Support SPCR, use these links when you buy: NCIX, Amazon and Newegg


Top
 Profile  
 
 Post subject: Re: Extreme Sound Damping
PostPosted: Sun Oct 25, 2015 11:53 am 
Offline

Joined: Sun Jan 19, 2014 9:39 am
Posts: 39
I have a few NoiseBlocker B12-2's which come with the mounting hardware linked below. I've found that you can make a small but noticeable difference by getting the tightness of the nuts just right. It can help to lessen reverberation through the case.

http://content.hwigroup.net/images/prod ... 800rpm.jpg


Top
 Profile  
 
 Post subject: Re: Extreme Sound Damping
PostPosted: Sun Oct 25, 2015 5:24 pm 
Offline
*Lifetime Patron*

Joined: Sun May 21, 2006 9:09 am
Posts: 2269
Location: Northern California.
why not simple rubber grommets to mount your fan?

http://www.amazon.com/Cosmos-Pieces-Rub ... B00H9905KA

even a squirt of soft silicone caulking with adhesive in each mounting hole performs nearly as good, and there's still no mounting hardware needed...

_________________
Help SPCR keep the lights on, use these links when you buy: NCIX, Amazon and Newegg


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group