quick question about airflow - mainly about 200 mm intake

TRE IzDOPE

Distinguished
Apr 3, 2013
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okay, i have a phanteks ethloo pro however you spell it.. it came with a 200 mm fan INTAKE in the front, a 140 i believe in the back pushing air out.. i have a master liquid 240 AIO on the top of my case with 2 120 MM fans pushing air out the top.. i am replacing the fans that came with it, with 2 x Noctua NF-F12 iPPC-2000 PWM fans

my real question is.. how many rpm should i have my intake fan? with it being a 200MM fan.. i want to make sure i have a decent air flow.. being that I know the noctua fans are really good.. will be running at 2000 RPM at all times.. and the fan in the rear of the case..

what is your thoughts.. if this was you.. and your system.. what would you have the intake fan running at?