- Aug 14, 2012
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Should a top mounted PSU fan face down?
- Thread starter bingaloman
- Start date
Solution
- May 18, 2007
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Fan-down gives air a more direct exit path that works with natural convection instead of against it.
So unless there are circumstantial details favoring or requiring fan-up, fan-down is an easy default recommendation.
So unless there are circumstantial details favoring or requiring fan-up, fan-down is an easy default recommendation.
- May 27, 2010
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A top mounted powersupply should have the fan facing down, but the air blowing up and out of the back vent.
It is the same config for bottom mounted supplies, just that it pulls from the outside of the case and immediately exhausts it.
There are a few configs where flipping a bottom mounted PSU over can be beneficial, but those are special circumstances.
It is the same config for bottom mounted supplies, just that it pulls from the outside of the case and immediately exhausts it.
There are a few configs where flipping a bottom mounted PSU over can be beneficial, but those are special circumstances.
- May 18, 2007
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Air at the top of the case is going to be hot(ter) regardless of facing up or down so might as well go with the orientation with the least airflow resistance: fan-down.
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