It is currently Fri Jun 22, 2018 5:45 am

All times are UTC - 8 hours




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: Game pc CPU cooling setup.
PostPosted: Mon Aug 07, 2017 4:29 pm 
Offline

Joined: Wed Jun 22, 2016 9:16 am
Posts: 15
Hi, I have a 2500k @ 4.5ghz and a R9 280x. And I was thinking about changing my cpu cooler (Mugen 2) to blow upwards. But I am not sure it would be better since heat rises anyway. So I am asking you experts here :). All my case and cpu fans are PWM controlled. And I have taken out my hdd cage. My case is beside my desk on the floor so the air is free to travel up.

Case fans.
2x 140mm: Noctua NF-P14s redux-900
1x 120mm: Noctua NF-S12B redux-700

I will explain with my paint skills. I dont really expect it so be more silent, but maybe better cooling efficiency (?)

My current set-up
http://imgur.com/a/e42X8

Possible change
http://imgur.com/a/3d1v4

What do you think? Worth the trouble or just stick with my setup?


Top
 Profile  
 
 Post subject: Re: Game pc CPU cooling setup.
PostPosted: Mon Aug 07, 2017 11:46 pm 
Offline
*Lifetime Patron*

Joined: Thu Feb 13, 2003 6:53 am
Posts: 1793
Location: Sweden
I would stick with the current "standard" setup; feeding the CPU fresh air from the front instead of hotter air from the graphics card.

_________________
Main: ASRock B85M-ITX | i3-4330 | 16GB DDR3 | Intel 730 240GB | HDPLEX H1-S | picoPSU | No moving parts | Idle 13.9W
HTPC: ASRock H81M-ITX | Pentium G3420 | 4GB DDR3 | Intel 535 120GB | HDPLEX H1-S | picoPSU | No moving parts | Idle 11.2W
Gaming: Intel DH77EB | i5-3570K | GTX 1060 6GB | 16GB DDR3 | TJ08-E | RM750X
Server: ASRock N3150-ITX | ~30TB | G-360 | Idle ~25W


Top
 Profile  
 
 Post subject: Re: Game pc CPU cooling setup.
PostPosted: Tue Aug 08, 2017 5:39 am 
Offline
Moderator

Joined: Mon Dec 09, 2002 7:11 pm
Posts: 7635
Location: Maynard, MA, Eaarth
A fan out the top would be a good thing. Pulling warmer air from close to the video card, though is not ideal. So maybe a rear exhaust fan and an exhaust fan above the CPU. If that is not enough, try a second top exhaust.

Air flow through the case is better than churning air inside the case.

_________________
Sincerely, Neil
http://neilblanchard.blogspot.com/


Top
 Profile  
 
 Post subject: Re: Game pc CPU cooling setup.
PostPosted: Tue Aug 08, 2017 7:44 am 
Offline

Joined: Wed Jun 22, 2016 9:16 am
Posts: 15
NeilBlanchard wrote:
A fan out the top would be a good thing. Pulling warmer air from close to the video card, though is not ideal. So maybe a rear exhaust fan and an exhaust fan above the CPU. If that is not enough, try a second top exhaust.


Thank you both for your answers.
Do you think adding a fan (on the top of the case above the cpu) would lower or increase the noise? In theory the fans dont have to spin as fast. But adding a fan is adding noise right (?)
And do you think I would lose positive pressure? The 120mm fan is smaller but its blades are different, I think they move more air @ lower rpm. I would then have neutral pressure?


Top
 Profile  
 
 Post subject: Re: Game pc CPU cooling setup.
PostPosted: Wed Aug 09, 2017 5:13 am 
Offline
Moderator

Joined: Mon Dec 09, 2002 7:11 pm
Posts: 7635
Location: Maynard, MA, Eaarth
I think that moving air through the case - lowering the temperature in the case - makes the heatsink fans much quieter. If the case has inadequate air flow, then no amount of fan speed can make the GPU cooler.

The GPU produces more heat than the CPU, and its heatsink is usually much smaller than the CPU heatsink. And the GPU is positioned poorly for cooling - it is exactly in the worst position for quiet cooling.

That is why I think positive pressure is a disadvantage. By definition, the air inside of a positive pressure case is moving more slowly, and that allows heat pockets to build up. And positive pressure has minimal to no advantage for dust control.

Top exhaust fans are reinforcing the natural flow of warm air, and so you get as much use as possible of a given RPM.

_________________
Sincerely, Neil
http://neilblanchard.blogspot.com/


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group