Sanding the fans works, but dont expect too much. I sanded my 120 mm sunons with 400 and 600 grit paper and it took too much patience and nerves if you don't want to disassemble the fan. Just use exacto knife (scalpel) to carefully remove all remains of the molding in fan case and impeller, than sand all with some or none pressure with the paper. The thing is that you must pay attention not to disbalance the impeller.
It's much easier if you disassemble the fan and take the impeller out.
I removed all sharp edges on the impeller and smoothed fan case, than filled the row holding the wires with hot glue gun.
In the end, sunon working on 7 V WAS quieter, but not enough (it's a Sunon!).
Dunno if that is worth the effort, but the fun part is doing it...
Try and see (hear)
btw, what payment method did you use when ordering tygon from BECooling (its
www.aquastealth.com right?), and just for my info, how much money for sh+h?
thx.
