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Need help with case fans

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Wildhunter

New Member
Joined
Apr 9, 2003
I just started overclocking and my case temps are getting high (45-50c),so i'm thinking of getting a couple of case fans but I don't know where to put them and what fans to get.

I have a cheap mid tower case with only one 80mm hole in the back and I just made a 90mm hole on the side near the video card cause my ti200 is getting hot. Should I put an intake or exhaust fan there ?

Right now i'm thinking of putting a 92mm intake on the side, 80mm intake front, 80mm exhaust and I have a enermax double fan. Is this enough exhaust, if not should I make a hole on top of the case?

About the fans, I want something cheap (not more then 3$) and quiet, less then 35dba cause I have a vantec aeroflow and it's a bit noisy.

-I found this fan in the cyber deals section:
http://www.directron.com/9cm.html
are they good and whats the dba?

-I also found this 12VDC 3-1/8" X 1-1/4" BOX FAN :
https://www.mpja.com/viewallpict.asp?dept=287&main=
Are they good? and do they have 3 or 4 pin connectors?

What other good 80mm and 90mm fans you guys suggest ??

Btw, do you guys know by how much will my case temps drop and will my case be much louder then now with only a vantec aeroflow?


Please help me out.

Thanks alot
 
What you pay for is what you get. If you want quiet, you need to buy panaflo case fans. Your idea of using a 92mm intake on the side, 80mm intake front, 80mm exhaust is a good one. You may or may not benefit from a blow hole at the top. It depends on how tight things are on the inside. Route all of your cables to maximize air flow inside the case. Don't bother with round cables. They are a waste of money. Just route the cables so the biggest amount of air flows through the center of the case over the mobo and video card area. If your cables are too short to allow this get longer ones, but don't exceed 18" max length for IDE cables.
 
I have spent many a lnog hour on my case, getting the perfect case fans and flow setup and runnig pressure and dust acumulation tests on old gutted PSU poxes. i know this that may help, you NEED 2 80mm outputs or one 92mm bahind the cpu on the back fo the case. also you need good intakes on the front side and or bottom of the case. and lastly get a rheobus so you can turn em up or down at will, a good one is the zalman mfc1 tho it is a nasty b**** to wire correctly. i use 92mm panaflow for the bi ones side top and bottom. and 80mm panaflow silent fans for the rest cept cpu and psu, tha way all i can hear is the 92s in the summer when its really hot and the psu fan that i should really switch out and do some modding. often the case is that the psu cpu and gpu fans are the real problem with noise. for case flow use anything with greater than 20CFM of airflow in each fan. get the total cfm in and out to about match and have the in (which is more important from my perspective) to be about 40cfm or more, same with the out.
 
Thanks alot for the info guys,

I guess that I'll get me some panaflows but on the directron website they are pretty expensive, do you guys know other good online stores that have panaflows or is there any other good fans?
 
Another thing that really helps, especially in a situation like yours, is ducting. Get some cardboard and duct tape, and build something to guide air from your intake to your CPU. Also, if you can, expand that intake- throw in a 92 instead of an 80, or a pair of 80s, or whatever space allows. Just whatever you do, make sure you balance things out, so that its not extremely negative or positive pressure, so you get your money's worth.
 
Ok though, think about this first. If you case temp is 45C, that means it is, by my calculations, 113F. I hardly believe this is your case temp, it has to be your Diode or CPU Socket temp. Stick your hand in your case, if it starts sweating like you wouldn't believe, then maybe it is, otherwise I think this isn't the case temp.

Smithers
 
Mr_Smithers said:
Ok though, think about this first. If you case temp is 45C, that means it is, by my calculations, 113F. I hardly believe this is your case temp, it has to be your Diode or CPU Socket temp. Stick your hand in your case, if it starts sweating like you wouldn't believe, then maybe it is, otherwise I think this isn't the case temp.

Smithers

agreed. he's prolly saying CPU temp which is probably still wrong but if you can make the sensor say something lower than it's probably possible that you're a bit to hot.

use that side hole as an intake. cut a hole in the top panel and put a fan there as exhaust. generally bottom is for intake top is for exhaust because heat rises. if you don't have the funds for a fan on the top just cut a grill out in the panel. make sure it's not bigger than what a fan you could put there would be. cutting out a grill would be passive cooling but you'll still be able to evacuate hot air.
 
thanks for the replies

I'm pretty sure that it's my case temps because my case is in my desk and when I open my case and put my hand in it's really hot.

I have an MSI K7n2-l and an xp 1700+ tbredb @ 2177 1.55v. I'm using MBM5 to check my temps and my cpu is at 47c, which I guess is high for the low vcore. But even if it isn't my case temps, I still want to put a couple of fans because summer is coming.

anyways, do you guys know of any good online stores that are selling case fans??
 
Well jeez, it seems to me if your case is in your desk, like actually in a cabinet or drawer that has no holes, that that would be a very very bad thing. With CPU's and all your other components putting out crazy amounts of heat, all that is going to happen is the heat cycling around, getting hotter each time. It would be like watercooling with no fan or rad, over a long enough time the water would heat up to the internal temp of the proc, right. I mean, it is a little different here, cause surely SOME air gets out, but I doubt too much....

Smithers
 
my case is in a compatment of the desk made for a case, the de4sk was built by me and my dad for this purpose. it has holes in the back and side and it is wood so it actauly buffers some of the noice and i still get great temps. tho i am considering adding a side hole for my side intake fan, might lower my temps a bit more, and also i need to widen the back holes so i can get more flow outr from amongst the mess of cables in there.
 
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