Yewen said:silencing stuff
Only thing I can hear in my heavily OCed pentium D with air colling is the HD now - damn maxtor! Time to get the elastic out or buy a silentmaxx enclosure.
To the OP I havent bothered with filters as it will lower my already tiny amount of air flow (all case fans at 5v/ freezer 7 pro 7v / zalman vf700 5v) and just live with cleaning it out every so often.