I have a Rosewill Challenger case with 3 fans but my mobo only has 2 chassis headers. If I run 1 fan on molex would that affec

Solution
If you have to have one maxing all the time, I think I would make it the 140mm on top (assuming you're using the stock fans and stock configuration). It should be slightly quieter than one of the 120s.

Toothikins

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Jul 31, 2014
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Which fan do you recommend running on the molex?