i replace all my mmm fans with these
http://cgi.ebay.com/Internal-laptop-...4.c0.m14.l1262
ive never killed one , the blades are smaller and dont get clogged as easy , i also remove the grill from the top.
losi 8ight-t 1515 tekno 1Y/MM 4s/5S flightpower
losi 8ight-t 1515 tekno 1y/MM 4s/5S flight power
RIP 4x MMM . MM still lives on !