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EricHiggin said:

You could likely get away without a CPU fan with the right heatsinks. Just let the top, bottom, front, and rear, exhaust. For high end rigs it's hard to say how well that one side fan would work exactly. You'd still want your CPU fan, but a downflow cooler instead of a tower cooler. Vertical GPU positioning would also be better this way. Could open the door to new third party GPU cooler designs for those types of cases.

Without CPU fan and heatsinks even a 90,000-watts fan is barely enough (03:50 - 04:30 in the video, around 90 degree Celsius with a Ryzen 1800X):