4 x 120mm or a 200mm fan for intake?

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PimpSlap

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Jan 16, 2016
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I'm currently using a Corsair 600t and have a 200mm fan at the front for intake, two 120mm on the top for output and a 140mm at the back for output. I'm thinking to replace the window on the side of the case with a mesh insert and I was wondering whether i should hook up a 200mm fan or four 120mm fans. This is because my new gpu gets some really high temps and was wondering for what i should go for. the aesthetics don't bother me because my case is on the floor where i can't see it and the noise doesn't bother me.
 
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Sneezer
It shouldn't but unless you're overclocking too far, you shouldn't be having overheating issues with that H100i GTX.

You may want to check the thermal compound. If there was an issue when it was installed, you get overheating issues like this.

As for the fans, it's all going to be about the airflow. Add the total airflow of the fans you have (look up the specifications online if needed). If that number is higher than what you'd get out whatever 200mm fan you're looking at, use the fans you already have.
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Sneezer

Sneezer

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Dec 28, 2015
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It will depend on what fans you get.

They'll list an airflow movement rate in the specifications. For instance, this fan can move 63.47 CFM (cubic feet to minute).
http://www.corsair.com/en-us/air-series-af120-performance-edition-high-airflow-120mm-fan

You should be able to simply do the math. If you buy 4 of those fans, you'd need a 200mm fan that has over a 253 CFM rating. I think most 200mm airflow fans are between 80-100 CFM.

However, focuses only on airflow. It ignores power draw, fan controller, etc. You may care about those.

If you're trying to solve GPU overheating issues, you may have the most luck with a different CPU cooler. What CPU cooler are you using now? You may be able to get a much better one for the same price as 4 fans (not cheaper than one 200mm fan) while getting better cooling on your CPU.
 
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PimpSlap

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My current cpu cooler is the Corsair h100i GTX but the thing is that right now I'm on a budget and i can't afford to get 4 of these fans being that they are over 30$ each, I actually have fans from cooler master that have an equal cfm and are currently on sale for 6.99$ each and have a slightly faster rpm. Also power draw is not an issue being that i have a fan controller. I'm just now wondering if getting a 200mm fan would be better in this case.
 
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Sneezer

Sneezer

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Dec 28, 2015
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It shouldn't but unless you're overclocking too far, you shouldn't be having overheating issues with that H100i GTX.

You may want to check the thermal compound. If there was an issue when it was installed, you get overheating issues like this.

As for the fans, it's all going to be about the airflow. Add the total airflow of the fans you have (look up the specifications online if needed). If that number is higher than what you'd get out whatever 200mm fan you're looking at, use the fans you already have.
 
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