how many fans does a pc need?

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abaday789
As long as you have one intake (preferably with a dust filter in front of it) a the font and one exhaust fan at the back you'll be fine. If your case allows try using 120mm or upwards sized fans.

Typically
Larger diameter = More air moved per revolution
More air moved per revolution = Less rotations to match the air flow of a smaller fan
Less rotations to match the air flow of a smaller fan = Less noise

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abaday789

abaday789

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Jul 4, 2014
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As long as you have one intake (preferably with a dust filter in front of it) a the font and one exhaust fan at the back you'll be fine. If your case allows try using 120mm or upwards sized fans.

Typically
Larger diameter = More air moved per revolution
More air moved per revolution = Less rotations to match the air flow of a smaller fan
Less rotations to match the air flow of a smaller fan = Less noise

 
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Solution
Martell1977

Martell1977

Splendid
Oct 26, 2010
3,846
3
24,960


Water cooling is mostly for overclocking or to keep noise down.

The CPU (Processor) usually comes with a stock heat sink and fan, which is fine for standard usage.
Your GPU (video Card) will usually have at least 1 fan, depending on the model.
Your PSU (power supply) will usually have it's own fan as well.
It's good to have 2 or more case fans, an intake (pulling air in) in the front and a exhaust (blowing air out) in the back.
 
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