nvr used an adaptor b4 so dont know how loud it add to the sound clutter, also not really sure if im on the right track, anyway the reason im thinking of the 140mm fans is bec its big enuf for the air to go around 2 hdd, n hopefully not as noisy as the 120mm fans with respectable cfm....maybe this pix can illustrate better, the black rectangle is suppose to represent a hdd... lol, the blue line is cold air n the red is heat.



seems like any moderate cfm fans that i tried has the unbearable backpressure sound...so running out of ideas

not really into chopping anything so looks like my options are pretty limited....anyway just happened into this pic of someone replacing the 120mm fans with 2 x 80mm...simple but ingenious...wonder whats the sound like....

http://img260.imageshack.us/my.php?image=asdfzy3ul9.jpg

really dont know....still trying to figure out....somore sniper say the diy fans r mostly questionable which sounds about right....anyway i think if put 2 x 80mm fans will be noisier plus twice the vibration, so maybe not a good idea...maybe try aluminium fans.....shud be less vibration right?

@ E-J@1

already tried.., also tried plastic pushpins instead of screws...resonance change a little but not much dif...prob is the really silent fans r just that...silent but not much airflow...hdd temp go up 3-5c

@ J-Slade
high density sponge...mind telling whats that...isit like nexus damptek

anyway bombman suggested aluminium fans...might try that...

actually the pix is clear enuf thx ...anyway does it compress much if u screw it onto the casing, coz if it doesnt then there shud be gaps in between whihc i think shud further lessen the noise n also the vibration...

ehh why didnt i think of that, got a few lying around....actually if can find those in big cut sheets..then maybe can also use as sound n vibration dampener all around

think better to screw it thru the double sided tape, u dont want it to come loose in ur casing like i did coz i just just broke a fan blade trying to use pushpins with extra thick paddings/tape...what a waste

ya thx for the suggestion sniper...actually works like a charm...fan can push a little higher with slightly less sound n vibration, ....think if got longer screws can stick more tape n try run the fans a little higher....but nvr thot of sticking it so nicely....my job real rojak

@ ianho,

ya its actually 2 120mm fans...measured can fit 2 120mm's but ngam ngam only...wonder how that guy mount those fans..

@ J-slade
yup...snipers suggestion works...but i still wanna push the fans higher so that it has enuf cfm to go around 2 hdd....wihtout the added sound and vibration...think neeed to experiment more

actually im also curious..

imagine mount a few of those on the side panel.....i think cat walk pass also it will suck into the casing

come to think of it ur right...where to get 250mm fan grill...anyway abt buying thy rlhh US store bulk....iinm its in one of the links he provided...sorry cant giv u the link coz the net is like kereta lembu...btw if ur thinking of getting one maybe reconsider, coz if order n its faulty or spoil later....u cant actually pop in to Ly for another 250mm's...just my 2sen

could it be the molex connection, i normally plug molex n also push the wires in frm the back to ensure proper contact.

not sure but cud be...reason i mentioned abt the molex was bec i noticed its very loose even after clicking it in...n also was reading one of the causes of psu failure along with instability issues was due to coonections not snapped in properly...

if u dont care abt noise then 120mm i can recommend...thermaltake smaftfan blue led...model a2018....not sure abt 80mm with leds tho'

not sure abt u guys, but referring to the cm blue leds, for mine the led's brightness seems to follow the speed of the fan, even a small rpm change affects the brightness, not steady at all...n it has a small clicking sound, very faint but noticeable...even the cfm is too low. Definitely not on my recommended list ):

guess its not an isolated case then, anyway the thermaltake smartcase blue leds r not too bad, using a few now so no complains, comes with controller, but sure is noisy at high speed.

if ur looking at how much you will safe at the point of buying then i totally agree with u, but if ur looking at extended value then i think the rm20 dif is negligible...give u a few examples, (tried both fans btw):

1) say theres a heatwave n u wanna keep ur case cool, can u do that with the cm?

2) wanna test ur system for stability...say run orthos or prime95, need to run a few hours right? will u dare to leave it unattended with the cm? btw i ran orthos blend at priority 9 for more than 7 hours, my temps increase by less than 10 deg celcius only with the 2 TT case fans running less than half, nvr even bothered to ramp up the cpu fan.

Hope i dont sound coming off too strong as thats not my intention, only wanna save u guyz the money u "think" you'll be saving.

curious what fan n controlller u using? i think ur fan requires a minimum voltage to run, but anyway it sounds quite dangerous as u or someone might accidentally turn off the fan

wow...definitely a high powered fan....maybe get one of the fan experts here to build u a fan controller or build your own...http://forum.lowyat.net/topic/312003