As the fan is near to the top of the gpu the fan when set to push the air out as exhaust cools the gpu in a better manner.
Computer side panel fan intake or exhaust.
The gpu intakes the air using fans attached to it and lets the air out from the top.
By changing the direction a fan is mounted it can act as either an intake or exhaust.
The rest of your case fans will then exhaust any circulating warm air.
Generally it s best to have as few obstacles as possible between the intake fans on the front of the case and the exhaust fans on the rear and top of the case.
If you use it as an intake fan you ll only have one exhaust fan in the back and maybe one or two in the top depending on your case.
The heated air is pushed out of the computer via exhaust fans.
This is called a computer s airflow and is a great way to make the most of your system s fans.
Fill this first followed by the rear exhaust mount followed by the roof exhaust mount.
Gpu s generally run a bit hotter than cpu s.
Air travels one way through a fan in one side and out the other.
Use proper fan positioning.
And no i would keep your side fan as an intake directing air toward the graphics card in order for the graphics cards fans to ingest the cool outside air and efficiently cool the card.
This is clearly not enough as your computer gets warmer.
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If you have one two or three fans in your case the side panel intake mount is the most important.
Side mounted fans can be intake or exhaust depending on the setup.
As your gpu is placed in upright position in reference to motherboard which means the fan on the side panel must be placed near to its top.
Having your side fan set on exhaust will help to remove this heated air.
Manage your cables and other obstructions.
What we have is a simple intake extract exhaust system where a computer is consistently fed cool air while heated air is expelled.