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How to Determine A Case With Good Air Flow?, How many case fan needed?
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TSE-J@1
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 May 20 2007, 04:24 PM
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QUOTE(Xtreme_Hightz @ May 20 2007, 03:34 PM) mmm... if you wanna run high rpm fans and scared of the noise... use rubber gromments. It cuts down alot of the vibration caused by fans and therfore cuts down significantly on the noise level. Better yet, (i'm still looking for the link) create a vacum in your case. What i mean is that, close every hole in your case except for your intake and outake areas. This create a suction effect jus like a vacum.. once i have found a link i'll post it up.. kinda interesting... any ideas where to find those rubber gromets?  |
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Xtreme_Hightz
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May 20 2007, 05:35 PM
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Getting Started
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normal hardware stores... i bought alot jus under 3bucks... you can get really think ones that will fit the screw for your fans which only cost 20cents extra.. they are full rubber so they can take alot of the vibration away. The rubber grommets are usually used for piping.
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lohwenli
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May 20 2007, 06:16 PM
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QUOTE(Xtreme_Hightz @ May 20 2007, 03:34 PM) mmm... if you wanna run high rpm fans and scared of the noise... use rubber gromments. It cuts down alot of the vibration caused by fans and therfore cuts down significantly on the noise level. Better yet, (i'm still looking for the link) create a vacum in your case. What i mean is that, close every hole in your case except for your intake and outake areas. This create a suction effect jus like a vacum.. once i have found a link i'll post it up.. kinda interesting... Yeah, vacumn or otherwise known as negative pressure ventilation cools down cases quite well because of thermodynamic effects (long story, that one). However, don't forget that the air movement of high airflow fans also causes noise on their own. Well designed and well balanced fans make no vibration noise and only have the 'whoosh' sound of air moving. Vibration damping will have no effect of those fans' noise levels. Removing airflow obstructions would work better. |
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vincent09
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May 26 2007, 01:04 AM
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Xtreme_Hightz can u show some image about that rubber grommets?
No idea what is that.
Em my casing ( Lian Li pc-60 plus ) got 2 12cm fan( front intake, side exhaust) and 8 cm fan ( real intake for cpu, top exhaust ).
My 2 12cm fan can control the speed, so if my hardware ( GC, CPU )hot i need to make more intake coming or i make that side exhaust more air going out ?
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TSE-J@1
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May 26 2007, 12:26 PM
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QUOTE(vincent09 @ May 26 2007, 01:04 AM) Xtreme_Hightz can u show some image about that rubber grommets? No idea what is that. Em my casing ( Lian Li pc-60 plus ) got 2 12cm fan( front intake, side exhaust) and 8 cm fan ( real intake for cpu, top exhaust ). My 2 12cm fan can control the speed, so if my hardware ( GC, CPU )hot i need to make more intake coming or i make that side exhaust more air going out ? if add exhaust fan --> no need to add intake fan if add intake fan --> need to balance with intake/exhaust air or exhaust cfm greater than intake cfm --> don't want the hot air trap inside due to the excessive intake air & insufficient exhaust fan to suck the air out of the chassis which one to add?  if possible try to add intake fan that can directly blow ur hardware (proc & vga) but then again, you will need to add exhaust fan also to create the negative pressure  This post has been edited by E-J@1: May 26 2007, 12:28 PM |
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vincent09
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May 26 2007, 01:25 PM
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I see, thanks E-J@1. But any idea about that rubber grommet? I totally no idea what is that. Just like a rubber ring.
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Xtreme_Hightz
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May 26 2007, 02:06 PM
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Getting Started
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yeah... it's a rubber ring... lemme find a pic... it's usually used in piping to create a good seal. -this is a pic of the rubber grommet: http://cableorganizer.com/images/rpd-gromm...RPD-grommet.jpg |
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vincent09
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May 26 2007, 02:27 PM
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Hmm need go hardware shop there c c, scare later ask also don't know what is that......
Normally is for what pipe use it, maybe easy let that hardware shop ppl know.
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Doom
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May 26 2007, 03:33 PM
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hmm usually those that u could found in hardware shop is in quite large size .
so I' doubted it could fit for case fan ... besides some aren't that soft like rubber grommet found in some premium case ..
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vincent09
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May 26 2007, 07:05 PM
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Yaya, hardware shop will large size because for other type of pipe use. All way ask hardware shop what for pc also get large size 1.
If tell them rubber grommet they will show you what is it or still got other name?
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zx12
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May 26 2007, 07:17 PM
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QUOTE(Xtreme_Hightz @ May 26 2007, 02:06 PM) yeah... it's a rubber ring... lemme find a pic... it's usually used in piping to create a good seal. -this is a pic of the rubber grommet: http://cableorganizer.com/images/rpd-gromm...RPD-grommet.jpgits also know as a rubber washer rite?.. try asking for rubber washer at the hardware stores |
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vincent09
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May 26 2007, 07:44 PM
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ya o XD take a picture let them see easier.
Hope can get some of them to try on my fan XD.
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Xtreme_Hightz
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May 26 2007, 08:47 PM
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Getting Started
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hahah.. hopefully you like the result lar.. so far i did it for my gf's case and it's really effective..
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vincent09
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May 26 2007, 09:03 PM
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Hehe hope so, i slot 2 12 cm fan for my pc-60 plus, after turn on, same rpm got 2 different sound from the fan, dont know is that front intake got panel block or what will noisy abit. So try and reduce that vibration then got low down that noisy or not XD.
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zx12
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May 28 2007, 03:12 PM
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QUOTE(Xtreme_Hightz @ May 26 2007, 08:47 PM) hahah.. hopefully you like the result lar.. so far i did it for my gf's case and it's really effective.. but if you put the rubber washer, won't there be a gap between the fan and casing?.. does ties affect the fans functionality? |
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vincent09
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May 28 2007, 03:46 PM
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ya, oh got a space between casing and fan, I havn't go find that rubber grommet. If got i try and c how.
But if there got a space, i think no so wide, because that rubber grommet is put on case there then u only screw your fan.
Now i wonder the size that the rubber grommet i want looking for.....
This post has been edited by vincent09: May 28 2007, 03:52 PM
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Xtreme_Hightz
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May 29 2007, 07:54 AM
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Getting Started
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There isn't much space... if there is also... this is what prevents your case from vibrating and making noise. Then space is about half a centimeter or less... you can barely notice it. Any hows... there are different thickness for rubber grommets that you can buy. Just need to find the size that you want.
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katunX
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May 29 2007, 09:17 PM
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QUOTE(vincent09 @ May 26 2007, 01:04 AM) Xtreme_Hightz can u show some image about that rubber grommets? No idea what is that. Em my casing ( Lian Li pc-60 plus ) got 2 12cm fan( front intake, side exhaust) and 8 cm fan ( real intake for cpu, top exhaust ). My 2 12cm fan can control the speed, so if my hardware ( GC, CPU )hot i need to make more intake coming or i make that side exhaust more air going out ? I got the same casing as vincent09, wanna replace my case fans with UV led or led fans, can anyone recommend good 80mm and 120 mm fans(possibly a high performance but silent, is there any?) By the way, the 120mm(front intake) and 80mm (top-exhaust)... For the other two fans (120mm side exhaust & 80mm back intake), is it ok if i'm using normal led or uv led fans(meaning that, not high performance fans)?  |
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vincent09
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May 29 2007, 10:21 PM
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katunX, if u just want buy case fan at Low Yat with nice performance and acceptable noise can try VIZO UV fan. If got fan controller any terible air flow fan also can use, u just need to control it.
But katunX, make sure u balance the air pressure.
I'm using 2 12 cm ThermalTake smart fan with own controller, hot day turn it 2000rpm ( game sound can cover the noise XD ), midnight if still open then turn it 1500 rpm and silent for sleep.
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