Hi, I have a zalman Z3 with 5 Zalman ZA1225ASL fans.
http://www.watercoolinguk.co.uk/p/120mm-Zalman-White-Case-Fan-ZA1225ASL-1600-RPM_43428.html
Problem is theyre all running only on 1000rpm, but they should be running on 1600 as the manufacturer says. One is Molex and other four are three pin...