PSU mounting – fan facing up or down

My two cents rant about PSU fan facing up or down when it is mounted in the bottom of the case when talking about semi fan less power supplies. Facing up: Heat goes up. When PSU fan is off, all that little heat will go up directly to the GPU. When PSU fan is on, you are cooling PSU with a warmer air from inside of the case. Facing down: When PSU fan is off. Heat goes up. But between PSU circuit board and GPU you have PSU metal case…

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