Is it ok to have a Scythe S-Flex fan facing down? Was looking at putting one in the top fan position on a Lian Li A10, which would put it lying horizontal at the top of the case. Is this ok, or is this position not good for this fan? I'm not sure how the internal mechanisms of these fans work and if they need a vertical position to work properly? If this isn't workable, what good silent fan would be ok in this position, or does it not even matter?