Welcome to Anand Sympathy 🙂 What cheese said ^^^, and to add to that, the XP120 (if its compat w/ your mobo) with good case-air-flow and a super low 120mm rpm fan will be quieter than the 7700 Zalman series and perform as well, sometimes better depending on your setup. Scythe makes some nice air-coolers as well (in particular their latest offerings).... might want to give them a look.