Hello there . I have some problem with my casing cm Elite 371 . The side panel is attacted with fans and it make a very annoying noise like small jet engine when turned on . Here is the pic of it . Anyone know how to make it silent without removing the fan ? The fan is just cheapo fancy type nt any high rpm fan . Any help will be appreciate







SOLVED : No choise so change side panel fan as exhaust .

This post has been edited by Jayi: Jun 6 2011, 01:35 AM

change to a low dBi fan

dBi ? dBa isnt ? Btw , the fan is not making noise if I put it as exhaust .

This post has been edited by Jayi: Jun 3 2011, 02:37 AM

thats normal bro.. any pull setup will have wooshing sound. what u can do is control the fan speed or put a spacer between the fan and the acrylic.

change it to AC F12.. btw, the fan is 120mm rite?

Put spacer/gromet btween fan & acrylic...so it wont vibrate that side panel

Have u screw ur fan properly?
i mean tightly..

Normally need much for space between the fan and acrylic ?

F12 no led
Vibrate make sound or because pulling air ?

Yes bro

if u want led, then try the xigmatex or aerocool fan.. or u just can refer here

even with the lowest speed fan any pull setup will make the slightest sound. if u want to reduce the sound u need to create a gap between acrylic and the fan or change to the lowest speed fan.

Bro , it is not about wad type of fan i am choosing . Its about how to silent a intake fan . I'm still looking forwad any help guys

owh.. i got it wrong..

try dismantle from side panel and run fan w/o attch at side panel..isit sound like before.

maybe sound like small jet engine come from side panel fan grill/hole when air suck into ur case

Yes bro . The fan is silent but when attack with side panel it make noise

I can just explain why this happened, up to you how to understand it and i hope it can help.Heat is useless energy, however air contain a heat that cant make any small differences of pressure because your casing is open system . First actually its about heat transfer law and integration of material vibration . Air intake from outside either inside the casing,where act u want sink the hot air? or you want use the fan for cooling process.Act any casing fan behave as air circulation for most electronic part except the blower one have potency to cool your electronic part from temp 0 to ~~ be constant. The noise is coming from normal forced air conduction,convection why forced? because you use a fan, when use a fan it is not natural.How it make the casing side panel absorb vibration, you think what the material is tempered for the casing side panel? .You can touch your side panel,the material is not strong enough to store your fan vibration energy, You can try it ,if u stop the air intake using your hand the noise level will drop dramatically.you must know every mechanical unit like casing fan spinning horizontally or vertically axis have a different level of noise. this is not fan problem or casing.Act you can still using same side panel and fan with silent condition. To counter the physical behavior or your material because or air flow through the fan blade going inside or outside is not important.See the fan frame is fixed with a screw or nut.However the fan is bearing mechanical in operated in 1000rpm - 3000rpm is not operates at good condition, the bearing hold the blades and spinning to make small scale. when its turning on more less 0.09 sec small noise until the inconstant fan operation operated at maximum point the vibration start making distribute to other material attached to it + small potential energy .In addition how is your casing side panel . the fan can make a loud noise because of material blocking inside or outside between the fan, it is about air pressure intake or release.For example your casing fan design is like grill,many small holes or its no any cover?.maybe we wrong when choosing the real casing if you wanted to put a fan at the side panel., because all the manufacturer want the casing to be smart not the fan that we can touch through it. hope you will find the answer on your own, that make you ill be better.

This post has been edited by pcminc: Jun 4 2011, 02:01 AM

wahhh what a very long explanation. but frankly i dont understand any of it.. but nevertheless thanks for the effort

whooshing sound are from the arcrylic i think try put the from outside. is it still sound?

If put outside for sure not more noise but how about the wayering ? lol

another problem occurred. get a slower fan might helps. u have to sacrifice either one laaa noise or performance

As a side note, we see that OP uses a CM 690 which has a side intake fan and it is not noisy (maybe bcos he not complaining). BTW I am also a user of that paticular side panel and it is silent too.