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 Air Co0ling Thread, AIR HSF(tm) thread

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mADmAN
post Sep 9 2006, 12:09 PM

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QUOTE(sHawTY @ Sep 9 2006, 10:38 AM)
Exhaust fan have to be slow, but not to slow...
But the intake fan is better if you use a high cfm... thumbup.gif

The intake fan that i mean is the fan on the front of the casing, the hard disk bay...
For the sidewindow fan, [if you have so] don't use a high cfm... smile.gif

Use a slow one also as this would make the fan suck the hot air that has just been thrown out by the exhaust fan on the rear of the casing... wink.gif

Got it? cool.gif
*
wat ur trying to do is create a positive air pressure in ur case la bro... more air in less air out. generally its an accepted thought that negative pressure is better than positive. more air out than more air in. so if ur gonna play with the pressures its better to have more air out aka negative pressure so the hot air wont stay in the case too long and end up being recycled by the HSF.

negative pressure will suck out all the hot air out faster. but the bad thing is itll suck all the cold air in from each and every crack in ur case... meaning dust will be coming in from everywhere as itll be sucking them in too. good for temps bad for dust.

positive pressure will be pushing cold air in and also force the hot air out thru all the cracks in ur case... this is good for dust control coz ur dust intake will be concentrated in 1 area. good for dust...not so good for temps.

the best of course is to have a balance between positive and negative. difficult to achieve sadly.

personally id prefer to setup a positive pressure in my case... coz my room is friggin dusty. but its at negative now by the way.
TSsHawTY
post Sep 9 2006, 12:14 PM

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QUOTE(mADmAN @ Sep 9 2006, 12:09 PM)
wat ur trying to do is create a positive air pressure in ur case la bro... more air in less air out. generally its an accepted thought that negative pressure is better than positive. more air out than more air in. so if ur gonna play with the pressures its better to have more air out aka negative pressure so the hot air wont stay in the case too long and end up being recycled by the HSF.

negative pressure will suck out all the hot air out faster. but the bad thing is itll suck all the cold air in from each and every crack in ur case... meaning dust will be coming in from everywhere as itll be sucking them in too. good for temps bad for dust.

positive pressure will be pushing cold air in and also force the hot air out thru all the cracks in ur case... this is good for dust control coz ur dust intake will be concentrated in 1 area. good for dust...not so good for temps.

the best of course is to have a balance between positive and negative. difficult to achieve sadly.

personally id prefer to setup a positive pressure in my case... coz my room is friggin dusty. but its at negative now by the way.
*
So, there's no way we can get a positive pressure?
Hard eeh?

But, i've read from somewhere else that we should only use low cfm exhaust fan...
I'll try to look to where i found it...

If i found it again, i'll post here the link for sure... icon_rolleyes.gif
mADmAN
post Sep 9 2006, 12:21 PM

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QUOTE(sHawTY @ Sep 9 2006, 12:14 PM)
So, there's no way we can get a positive pressure?
Hard eeh?

But, i've read from somewhere else that we should only use low cfm exhaust fan...
I'll try to look to where i found it...

If i found it again, i'll post here the link for sure... icon_rolleyes.gif
*
eh nono...positive pressure and negative pressure is easy to get. its the BALANCE of both thats hard to get.
TSsHawTY
post Sep 9 2006, 12:22 PM

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QUOTE(mADmAN @ Sep 9 2006, 12:21 PM)
eh nono...positive pressure and negative pressure is easy to get. its the BALANCE of both thats hard to get.
*
Ohh...
Okay...

But, is there an easy way to get it though? wub.gif
mADmAN
post Sep 9 2006, 12:32 PM

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i already say hard to get n u ask for easy way... laugh.gif laugh.gif laugh.gif laugh.gif laugh.gif

even if u use the same exact fan for intake and exhaust theres still alot of factors to consider... like intake restriction due to front panel design. or intake filters bla bla bla.... then u also have to remember that ur PSU fan is also an exhaust fan for ur case.. so wanna get the balance of both its gonna get very technical and probably scientific to get it right.

so my suggestion is choose either u wan positive or negative pressure.
jasonlim
post Sep 9 2006, 04:35 PM

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when ur system create heat,u shud hv cool air from outside 2 blow in ur case..then the exhaust fan must suck out all hot air as soon as possible..else hot air will circulate in ur casing..n hsf will accidentally take the hot air..it will make the temp reading even worse

so conclusion,exhaust fan must be powderful enuf smile.gif

n intake fan too..


vey99
post Sep 9 2006, 05:51 PM

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Yeah I found that my side panel fan wasn't helping the airflow in my casing. Took it out, no temps change in mobo and cpu... reduce the noise a little...
mADmAN
post Sep 9 2006, 06:00 PM

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ur side panel fan was placed to blow where?? to ur cpu or to ur GC?
akash
post Sep 9 2006, 06:24 PM

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QUOTE(mADmAN @ Sep 9 2006, 06:00 PM)
ur side panel fan was placed to blow where?? to ur cpu or to ur GC?
*
To my CPU....
TSsHawTY
post Sep 9 2006, 09:31 PM

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QUOTE(akash @ Sep 9 2006, 06:24 PM)
To my CPU....
*
Hey akash...
Any updates on your cables mess? laugh.gif

How's your heatsink project?
Started changing the fan yet? brows.gif
PowerSlide
post Sep 9 2006, 09:51 PM

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some ad.. tongue.gif

got 2 delta ffb modded by our mod sifu allngap..model is ffb something..80mm

modded to run slower so more quiet but still push alot air..now jus lying in a box..its quiet..can only hear little whine only..who wan kasi PM me

user posted image
TSsHawTY
post Sep 9 2006, 09:53 PM

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80MM?

Why does it have to be 80MM??? cry.gif

A question though...
Does delta produce 120MM focus flow fans? icon_question.gif

This post has been edited by sHawTY: Sep 9 2006, 09:54 PM
PowerSlide
post Sep 9 2006, 09:56 PM

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yeap 80mm

nice fan..mali mali tongue.gif

120mm ff gotlaa..but too great too handle sweat.gif
akash
post Sep 9 2006, 10:50 PM

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QUOTE(sHawTY @ Sep 9 2006, 09:31 PM)
Hey akash...
Any updates on your cables mess? laugh.gif

How's your heatsink project?
Started changing the fan yet? brows.gif
*
Hmm...Sorry but nop....Kinda bz with Assigments and stuff....so no time to open the pc..Sumore i am downloading using Bitcomet.. notworthy.gif notworthy.gif notworthy.gif notworthy.gif
TSsHawTY
post Sep 10 2006, 12:15 AM

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QUOTE(PowerSlide @ Sep 9 2006, 09:56 PM)
yeap 80mm

nice fan..mali mali  tongue.gif

120mm ff gotlaa..but too great too handle  sweat.gif
*
Delta did produce 120MM fan with focusflow? rclxub.gif

Damn, i should be getting that fan instead of my Nidec Beta 5... rclxub.gif

What's the CFM for 120MM FF? drool.gif
PowerSlide
post Sep 10 2006, 01:06 AM

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no idea..hav a check

but the A is high..some fan controller sure meletup rclxub.gif
mADmAN
post Sep 10 2006, 01:25 AM

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QUOTE(sHawTY @ Sep 10 2006, 12:15 AM)
Delta did produce 120MM fan with focusflow? rclxub.gif

Damn, i should be getting that fan instead of my Nidec Beta 5... rclxub.gif

What's the CFM for 120MM FF? drool.gif
*
got la dude... the one u were talking about with me in PM is the delta focus flow la.. Delta FF... or Delta FFB... model is FFB1212EHE doh.gif

QUOTE(PowerSlide @ Sep 10 2006, 01:06 AM)
no idea..hav a check

but the A is high..some fan controller sure meletup  rclxub.gif
*
as mentioned above its FFB1212EHE with 3.0A. as of this moment there are NO retail fan controller that can officially support it. although theres 1 on sidewinder that can control it but they still dont advise to use it with the fan...

the model of the 80mm should be FFB0812EHE.

This post has been edited by mADmAN: Sep 10 2006, 01:27 AM
TSsHawTY
post Sep 10 2006, 12:18 PM

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QUOTE(mADmAN @ Sep 10 2006, 01:25 AM)
got la dude... the one u were talking about with me in PM is the delta focus flow la.. Delta FF... or Delta FFB... model is FFB1212EHE doh.gif
as mentioned above its FFB1212EHE with 3.0A. as of this moment there are NO retail fan controller that can officially support it. although theres 1 on sidewinder that can control it but they still dont advise to use it with the fan...

the model of the 80mm should be FFB0812EHE.
*
Ohhh....
Yeah, i forgot... doh.gif

Anyway...
How's u're deal with shah81 on testing his 4.0A fan controller?
Tested yet? drool.gif
mADmAN
post Sep 10 2006, 12:27 PM

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nope....havent had the chance to meet up with him yet... kinda busy lately
TSsHawTY
post Sep 11 2006, 11:21 AM

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QUOTE(mADmAN @ Sep 10 2006, 12:27 PM)
nope....havent had the chance to meet up with him yet... kinda busy lately
*
Huhuhu...
Can't wait to see the result... drool.gif

Don't forgot to share with us the results in here abang "lelaki gila"... rclxms.gif

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