I have 4 * 120mm system fans on my case 2 blowing in + 2 blowing out. one of the ones that is blowing in is giving me noise lately and i ordered one to replace it with. can i take it off while i wait for the new one to arrive. that would be 1 blowing in and 2 blowing out. there is also the 120 mm of the psu blowing in too.