Go Back   Hardware Canucks > PC BUILDERS & TWEAKERS CORNER > New Builds

    
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old July 1, 2008, 08:48 PM
Rookie
 
Join Date: Jun 2008
Location: Quebec City
Posts: 11
Question New case airflow

Hello all,

I have ordered a new case a couple of weeks ago and it should be arriving soon. The case comes with a 80mm rear exaust fan and im planning on strapping another 120mm to the front. My question is, would I be better off switching the 2 fans (having the 120mm do the rear exaust and the 80mm do the intake at the front). What would create the better airflow and grant the lowest temps?

Thank you for your replies!
Reply With Quote
  #2 (permalink)  
Old July 1, 2008, 08:57 PM
shumway's Avatar
Top Prospect
 
Join Date: Jun 2008
Location: London - Ontario
Posts: 95

My System Specs

Default

I would switch them around if you can.

The more hot air you can get out of the case the better
Reply With Quote
  #3 (permalink)  
Old July 1, 2008, 11:14 PM
enaberif's Avatar
Hall Of Fame
 
Join Date: Dec 2006
Location: Calgahree, AB
Posts: 10,582
Default

Quote:
Originally Posted by tubabub View Post
Hello all,

I have ordered a new case a couple of weeks ago and it should be arriving soon. The case comes with a 80mm rear exaust fan and im planning on strapping another 120mm to the front. My question is, would I be better off switching the 2 fans (having the 120mm do the rear exaust and the 80mm do the intake at the front). What would create the better airflow and grant the lowest temps?

Thank you for your replies!
Cases with 80mm fans are gonna suck regardless of fan configuration.

Should have invested in a case that only has 120mm fans.
Reply With Quote
  #4 (permalink)  
Old July 2, 2008, 05:57 AM
MVP
F@H
 
Join Date: May 2008
Location: Cambridge
Posts: 343
Default

What case did you order? Someone hear may have the same case and be able to give you first hand advice on a fan configuration.

I'd suggest you ditch the 80mm and replace it with a 120mm and add another 120mm. Fans that come with cases usually aren't great fans and cheap 80mm are often load. generally a 120mm will move more air and do it with less noise.
Reply With Quote
  #5 (permalink)  
Old July 2, 2008, 06:03 AM
DK2 DK2 is offline
Allstar
F@H
 
Join Date: Apr 2008
Location: GTA
Posts: 821
Default

I'm a fan of more cooler air in, it'll get out regardless, but a 120 exhaust sure wouldn't hurt.

Look at it this way, in the summmer when you use a fan to stay cool, do you set it up to blow towards you or away.
Reply With Quote
  #6 (permalink)  
Old July 2, 2008, 07:42 AM
Rookie
 
Join Date: Jul 2008
Posts: 18
Default

I'm just wondering what you guys recommend? Negative pressure/Positive pressure/Balanced?
Reply With Quote
  #7 (permalink)  
Old July 2, 2008, 08:57 AM
DK2 DK2 is offline
Allstar
F@H
 
Join Date: Apr 2008
Location: GTA
Posts: 821
Default

I vote balanced and lean towards the positive side.
That said, every case and installed components are different.
Say you had a small case and shoehorned a GTX 280 video card in it,
then I’d say more exhaust or negative because your going to have ALOT of heat that you’ll need to get rid of,
and a little bit of positive pressure just isn’t going to do it.
Reply With Quote
  #8 (permalink)  
Old July 2, 2008, 10:59 AM
Rookie
 
Join Date: Jun 2008
Location: Quebec City
Posts: 11
Default

The case I ordered is a Compucase 6C28B. It comes with a 80mm rear fan mounted to a 120mm to 80mm adapter. I'm actually wondering if it's better to have negative or positive pressure. Also, since the psu, cpu and the 80mm fans are all pushing air out of the case, wouldn't it be better for the 120mm to do the intake to make the airflow more balanced?
Reply With Quote
  #9 (permalink)  
Old July 2, 2008, 11:23 AM
Rookie
 
Join Date: Jul 2008
Posts: 18
Default

negative pressure brings more dust + grime in i believe, but keeps temperatures cooler.
Reply With Quote
  #10 (permalink)  
Old July 2, 2008, 11:58 AM
zlojack's Avatar
Hall Of Fame
F@H
 
Join Date: Nov 2007
Location: Toronto
Posts: 2,057

My System Specs

Default

Quote:
Originally Posted by calvincheng14 View Post
negative pressure brings more dust + grime in i believe, but keeps temperatures cooler.
This is about right, in my experience.

You just need to dust more frequently.
__________________
[SIZE=3]
Reply With Quote
Reply


Thread Tools
Display Modes