I've been looking around for new fans,no success as the market is so huge.. Anyway in the interest of ever improving my PC I wanted to know how to make my system silent. Does it require under-volted or just quiet fans? I'm looking for suggestions of how to implement suggestions and any product ideas to go with the suggestions(especially what fans to use) would be a great help. I have a Zalman Z11 case and I'm using air cooling, Enermax ETS-T40-TA. Replies greatly appreciated.. Thanks in advance!