ok..got it...one more thing...by installing 7 fans in all, does it require a lot of power to run all those fans?...the reason i m asking is bcos, whn i asked this question in the forum i was told dat i will require atleast a 750w PSU to run 5-6 fans, instead of the corsair vx 500w, which i was thinking of earlier....but whn i checked the power consumption figures on CMaster website, it is said dat each fans consumes hardly 3 watts...so total consumption of all fans must not be exceeding 20-30 watts...heck..even the ceiling fans wont consume dat much power as was told to me in the forum...but i didnt wanna argue over there....also, wat about noise?...are these fans silent or they create a lot of noise??...thnx for the help...