Re: [SLUG] quiet case fans
Russell Davie wrote:
>
> Thanks,
> I used what was at hand and cut a cardboard 'flange' to separate the fan
> from the case. This made a huge difference and no doubt rubber would be
> even better.
Old mouse mats, or stick on door/etc foam sealing strips.
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Re: [SLUG] quiet case fans
Thanks, I used what was at hand and cut a cardboard 'flange' to separate the fan from the case. This made a huge difference and no doubt rubber would be even better. Russell At 08:37 PM 31/10/02 +1000, you wrote: On Thu, 31 Oct 2002 23:32:26 +1100 Russell Davie <[EMAIL PROTECTED]> wrote: > Hi there.. > As things get hotter, I installed some case fans and now the box its > sounding like a hive of angry bees... > Any clues on where to get quiet fans?, or just get some ear plugs? Get a 2nd set of fans, all equal to the current set, but put them in reverse, then, make sure they are seperated spacially by the [typical] 1/2 wavelength of the audio-noise you're hearing right now. Theoretically, if you're sitting in just the right place, then the opposing fans should cancel out each others noise... if you move though you could multiply the amplitude :P On a more serious note, there are fans out there which have good dB ratings, otherwise, perhaps consider putting some form of foam-filter on the outside, that would help 'muffle' the sound of the fans. Also, some thin rubber / tape strips on the parts of the case where the outside and skeleton case peices meet ( a lot of noise is generated simply by the case vibrating. If your case is on your desk, consider also putting it on a peice of high-density foam ( rubber like foam ). Regards. -- Paul L Danielshttp://www.pldaniels.com Linux/Unix systemsInternet Development ICQ#103642862,AOL:cinflex,IRC:inflex A.B.N. 19 500 721 806 --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.394 / Virus Database: 224 - Release Date: 3/10/02 --- Outgoing mail is certified Virus Free. Free Antivirus @ http://www.grisoft.com/ Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.410 / Virus Database: 231 - Release Date: 31/10/02
Re: [SLUG] quiet case fans
I should have said get noisy due to less air flow thus the fans run hotter as they run faster with less airflow and the bearings stuff up faster. On Fri, 2002-11-01 at 23:51, Doug Foskey wrote: > On Fri, 1 Nov 2002 22:42, you wrote: > > 1. make sure there is a clear path for the airif there isnt a clear > > path through the box you end up with a air pressure in-balance causing > > the fans to work harder and so they are noisy. > > Actually, fans rotate faster in a partial blockage due to the blades running > in less air, therefore less friction. (This is why when you put your hand > over the end of a vacuum cleaner, the revs increase.) > As a rule the plain bearing fans are quieter than ball bearing fans, until > the oil dries out, then noisier. (you can oil fans by peeling off the sticker > in the centre of the rotor, removing plug, then 1 drop of silicon oil. Do not > overoil.) > The more expensive fans have better designed blades. the Pabst fans have > blades that reduce the tip flutter for instance, so they run more quietly. > Doug -- * Hey if you're going to get mad at me every time I do something * * stupid, then I guess I'll just have to stop doing stupid things! * -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [SLUG] quiet case fans
1. make sure there is a clear path for the airif there isnt a clear path through the box you end up with a air pressure in-balance causing the fans to work harder and so they are noisy. 2. dont setup all the fans so they either blow or suck air from the box they should be in such a way that there is just as much air going in via a fan than out. 3. If you have an un-balanced fan often simple things like adding rubber spacers to the screw nuts between the case and the fan works wonders. 4. You can actually buy balanced fans and tested fans often you can spot them by the small drill indents in them were the fan shaft is. (I think they use lasers now to do the balancing ) 5. If all fails stop buying cheap fans you tight wad..lol To round it off high rpm and or large fans are the noisy onesmany people go for the one small/medium fan at stupid overly fast rpm ratings and then wonder why the things don't last and are noisy as hell. What do I use.2 well balanced large low rpm fans with rubber standoffsnow to just figure out how to stop the hardisk annoying me. On Thu, 2002-10-31 at 23:32, Russell Davie wrote: > Hi there.. > As things get hotter, I installed some case fans and now the box its > sounding like a hive of angry bees... > Any clues on where to get quiet fans?, or just get some ear plugs? > TIA > Russell > > > > --- > Outgoing mail is certified Virus Free. > Free Antivirus @ http://www.grisoft.com/ > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.394 / Virus Database: 224 - Release Date: 3/10/02 -- * Hey if you're going to get mad at me every time I do something * * stupid, then I guess I'll just have to stop doing stupid things! * -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [SLUG] quiet case fans
On Thu, 31 Oct 2002 23:32:26 +1100 Russell Davie <[EMAIL PROTECTED]> wrote: > Any clues on where to get quiet fans?, or just get some ear plugs? You could go the whole hog: http://www.tomshardware.com/howto/02q3/020701/index.html Regards -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [SLUG] quiet case fans
On Thu, 31 Oct 2002 23:32:26 +1100 Russell Davie <[EMAIL PROTECTED]> wrote: > Hi there.. > As things get hotter, I installed some case fans and now the box its > sounding like a hive of angry bees... > Any clues on where to get quiet fans?, or just get some ear plugs? Get a 2nd set of fans, all equal to the current set, but put them in reverse, then, make sure they are seperated spacially by the [typical] 1/2 wavelength of the audio-noise you're hearing right now. Theoretically, if you're sitting in just the right place, then the opposing fans should cancel out each others noise... if you move though you could multiply the amplitude :P On a more serious note, there are fans out there which have good dB ratings, otherwise, perhaps consider putting some form of foam-filter on the outside, that would help 'muffle' the sound of the fans. Also, some thin rubber / tape strips on the parts of the case where the outside and skeleton case peices meet ( a lot of noise is generated simply by the case vibrating. If your case is on your desk, consider also putting it on a peice of high-density foam ( rubber like foam ). Regards. -- Paul L Danielshttp://www.pldaniels.com Linux/Unix systemsInternet Development ICQ#103642862,AOL:cinflex,IRC:inflex A.B.N. 19 500 721 806 -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
[SLUG] quiet case fans
Hi there.. As things get hotter, I installed some case fans and now the box its sounding like a hive of angry bees... Any clues on where to get quiet fans?, or just get some ear plugs? TIA Russell --- Outgoing mail is certified Virus Free. Free Antivirus @ http://www.grisoft.com/ Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.394 / Virus Database: 224 - Release Date: 3/10/02
