What side should your PSU fan be facing?
- Thread starter Barend_1
- Start date
Solution
The fan should normally face downward and pull air through a filter that should be cleaned on a regular basis. No damage will occur if the fan faces upwards; this isn't worse that an old case with a top mounted PSU with the fan facing downwards.
For both bottom and top mount the fan should be sucking air from the bottom and blowing out the back.
Bottom mount is better for this because a bottom mount will suck fresh clean air from the vent/filter in bottom of case, while a top mount will suck the already hot air from your CPU cooler and parts to use as "intake air" to cool the power supply.
Mounting the fan the opposite on a bottom mount wont immediately cause any problems but it is disruptive to the natural airflow of the case and could cause heat issues, especially on an overclocked PC that is putting a thermal load on the CPU cooler to begin with.
Bottom mount is better for this because a bottom mount will suck fresh clean air from the vent/filter in bottom of case, while a top mount will suck the already hot air from your CPU cooler and parts to use as "intake air" to cool the power supply.
Mounting the fan the opposite on a bottom mount wont immediately cause any problems but it is disruptive to the natural airflow of the case and could cause heat issues, especially on an overclocked PC that is putting a thermal load on the CPU cooler to begin with.
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