Ok... Been having some fan problems with my asus eax800 xt ... so i dled this tool to controle the fan ... seems to work better then asus smart doctor. most of the time i can keep fan humming at around 3200 rpm. But i recently got a new 580 watt psu in hopes of solving the problem. of my fan on vga card. the psu is 580 watt with a 24 pin connector but no physical pci express car power line. still using stupid 2 molex to 1 6 pin connector adapter. Now i notice if i go into 3d view i hear a slight buzzing sound comming from the psu...is this normal perhaps do to switching in the power supply or should i ditch this power supply for a more expensive one with all the bells and wistles.