im just starting to build my new system in a 800d and im putting 3 akasa blacks in the roof as exaust fans. What it is ive taken the akasa sticker off the them as it looks ugly but when ive taken the sticker off ive found a tiny magnet underneath can the fan run without it as if I try and fit it with it in it just comes out and sticks to the roof of the case, if it is need I suppose could stick it to the fan with something.