special materials needed?

smilertoo

smilertoo

smilertoo

Soldato
Joined
4 Aug 2005
Posts
3,364
Hello,

I have an MSI 780 gaming gpu, the 2 fan thing that dumps all the heat into your case. I'm thinking of making a shroud to go around the fans with a 120mm fan at gpu powerplug end blowing air through the shroud and out the back (remove the pcie slot covers). Do i need special perspex(plastic) and glue for this due to potential temperatures or will any perspex do the job?

Thanks
 
smilertoo said:
Hello,

I have an MSI 780 gaming gpu, the 2 fan thing that dumps all the heat into your case. I'm thinking of making a shroud to go around the fans with a 120mm fan at gpu powerplug end blowing air through the shroud and out the back (remove the pcie slot covers). Do i need special perspex(plastic) and glue for this due to potential temperatures or will any perspex do the job?

Thanks
Click to expand...
that would just overheat the card as its designed to exhaust air into the case. i would just buy a couple decent case fans.
 
The fans on GPU coolers push air into the GPU, not pull air out. What case do you have? Maybe a new fan or two and repositioning will sort you out.
 
Fractal Design R4, that's why id like to exhaust the gpu heat out instead of into the case. I am talking about a shroud the thickness of a 120mm fan...not one that just skims over the top of the gpu fans; I don't do sli so i have all the room under the gpu to use.
 
All the room below GPU is airflow moving toward the the GPU. To remove heated air you need a shroud around GPU ant out the back. If your Define R4 has a side vent, where is it in relation to GPU? Might be able to duct GPU heat out side vent.
 
I thought of that but the 2 fans on the gpu cover most of the card, the most effective way would be my idea to funnel heat towards vents at the back where the pcie backplates are; it will be a big and ugly shroud but it should do the job, my only concern was needing special plastic to avoid warping or smelling if it gets hot.
 
smilertoo said:
I thought of that but the 2 fans on the gpu cover most of the card, the most effective way would be my idea to funnel heat towards vents at the back where the pcie backplates are; it will be a big and ugly shroud but it should do the job, my only concern was needing special plastic to avoid warping or smelling if it gets hot.
Click to expand...
You can only funnel cool air into the GPU fans.
They move air from case into GPU. You cannot funnel hot air away from GPU with GPU fan for that reason.
 
Your case has a space for a side fan right?

Have you tired putting a fan in it and recording your temps with it blowing air into the case and then blowing air out of the case?

One of the two will perform better than the other.

Use a high performance fan and hook it up to a controller.
 
I have that case and the same MSI GTX 780 and my case temps seem to be acceptable.
The 780 does exhaust hot air out too as I can feel it on my hand.

What is the ambient temperature of your case under gaming conditions and I will compare it with mine.

I have at the moment one fan in at the front and one fan at the side blowing in and one at the back extracting.
 
I don't have any overheating issues, i just thought if i directed all gpu heat out the back, my case would stay cooler allowing me to slow down all my fans a bit more; i'm trying to get as silent as possible.
 
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