Lets see your video card temps, first tell us your card and if you have stock or modified cooling and then what the temps are at a idle with 20%, 25%, and 30% fan speeds. I figure going above 30% fan speed at idle may drop the temperature reading below the scale.
Diamond radeon HD 4870 1gb
stock cooling
20% - 73 deg
25% - 60 deg
30% - 53 deg
Diamond radeon HD 4870 1gb
stock cooling
20% - 73 deg
25% - 60 deg
30% - 53 deg