Help with cooling fans, please? - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > Monitors, Printers and Peripherals
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 01-21-2005, 10:33 AM   #1 (permalink)
Newb Techie
 
Join Date: Nov 2004
Posts: 7
Default Help with cooling fans, please?

i have 3 fans in my system one on the left, top, and back. they all are taking air from inside the system and blowing it out. should any of them be taking air from the outside? help?
__________________

019323 is offline  
Old 01-21-2005, 11:54 AM   #2 (permalink)
True Techie
 
Join Date: Jul 2004
Posts: 170
Send a message via AIM to Spartan 1394
Default

A general rule is you should have the front fans sucking air in and the ones in the back blowing air out.


Here is an example(got to love MS paint)



Fans 1, 2, and 3 suck air in, while the Power Supply and fans 4 and 5 blow air out. This is the way to get optimal airflow. I used a Xaser II as the example, but you you can pretty much do the same with any case.
__________________

__________________
<img src=\"http://img.photobucket.com/albums/v210/alienhunter2049/Mysig.png\">

\".......die screaming with sharp things in your head\"

Proud Bush supporter.
Spartan 1394 is offline  
Old 01-21-2005, 12:10 PM   #3 (permalink)
Newb Techie
 
Join Date: Nov 2004
Posts: 7
Default

what if i have no fans on the front (it isin't possible), i only have one on the top, side, back. which one should i turn around?
019323 is offline  
Old 01-21-2005, 12:17 PM   #4 (permalink)
True Techie
 
Join Date: Jul 2004
Posts: 170
Send a message via AIM to Spartan 1394
Default

I'd say turn the top and side fans around. That way you have two fans sucking air in, and the Power Supply and the other fan blowing air out.l
__________________
<img src=\"http://img.photobucket.com/albums/v210/alienhunter2049/Mysig.png\">

\".......die screaming with sharp things in your head\"

Proud Bush supporter.
Spartan 1394 is offline  
Old 01-21-2005, 12:22 PM   #5 (permalink)
Newb Techie
 
Join Date: Dec 2004
Posts: 32
Send a message via AIM to joshyouah
Default

id say first, you may want to invest in another fan if it is possible to mount one in the front of your case.. their cheap. but if you cant get another, turn the side one around, assuming that it is the fan closest to the bottom, it will also provide best cold airflow to cpu id think.
joshyouah is offline  
Old 01-21-2005, 12:44 PM   #6 (permalink)
True Techie
 
Join Date: Jul 2004
Posts: 170
Send a message via AIM to Spartan 1394
Default

Quote:
but if you cant get another, turn the side one around, assuming that it is the fan closest to the bottom, it will also provide best cold airflow to cpu id think.
While getting air to the CPU would be nice, chances are the fan on the side is probably too low to blow air on the CPU but rather it was put there to blow air on the Video Card. Also, just turning one fan around won't help too much. because you have the three fans try to blow air out but only one is sucking it in. It's basically bottlenecking and slowing down air flow, but when you have two fans sucking in and two blowing out, you get constant air flow rather than waiting for the one lone fan to get cool air in.
__________________
<img src=\"http://img.photobucket.com/albums/v210/alienhunter2049/Mysig.png\">

\".......die screaming with sharp things in your head\"

Proud Bush supporter.
Spartan 1394 is offline  
Old 01-21-2005, 12:54 PM   #7 (permalink)
Wizard Techie
 
Join Date: Oct 2004
Posts: 4,010
Default

what is needed is to get anouther fan to blow at the cpu, and turn the other side one around. It is always better to have more fans blowing air out than have more blowing air in.

atleast turn the side fan around though.
__________________

Cisco CCNA, Comptia A+, 1/3 through CCNP
Trifid is offline  
Old 01-21-2005, 01:48 PM   #8 (permalink)
Newb Techie
 
Join Date: Dec 2004
Posts: 32
Send a message via AIM to joshyouah
Default

its true about the bottle-neck, but rather than increasing pressure within the case, causing temps to rise by having more fans pushing air in than what is pulling it out, you should have one blowing the colder air in, while having the two fans higher in the case ( back, and top) pulling the hot air out of the case. for optimal air flow, a fourth fan also pushing more air into the case would help quite a bit.
joshyouah is offline  
Old 01-21-2005, 03:28 PM   #9 (permalink)
True Techie
 
Join Date: Jul 2004
Posts: 170
Send a message via AIM to Spartan 1394
Default

Quote:
more fans pushing air in than what is pulling it out
It wouldn't be sucking more in than it can blow out. The top and left would be sucking air in, and the back and Power Supply would be blowing it out. Two in, Two out.
__________________
<img src=\"http://img.photobucket.com/albums/v210/alienhunter2049/Mysig.png\">

\".......die screaming with sharp things in your head\"

Proud Bush supporter.
Spartan 1394 is offline  
Old 01-21-2005, 03:41 PM   #10 (permalink)
Newb Techie
 
Join Date: Nov 2004
Posts: 7
Default

thanks guys, but one more thing though. my powersupply has one fan blowing out + another one that actualy blows are into the case from the powersupply itself. this fan is right above the cpu.
__________________

019323 is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:53 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.