my hp dekstop pc has an AVC chassis fan. i have checked the startup screen for anyway to change to speed but no, all that they report is the fan status (working or not) and the speed. i instaled speedfan and set the speeds for the fans to 100% but there is no change. im aware that that model of AVC fan has a built in controller for the ambient temp, so its an auto fan. but is there any way to manual bypass speed w/o hacking open the chassis and doin something to the fan