I just completed my new rig and everything was perfect until in the second week, when I noticed the video card fan was always on. Even with all the apps closed!! I am frustrated, as this card was labeled as 'quiet.'
Here is a snapshot of my system - can anyone help? This is REALLY annoying...
You can't turn off the fans unless the card actually supports semi passive fan operation. If it does, it should do that automatically when temperature is below a certain threshold (usually around 60C).
Try lowering fan speeds with Afterburner. If 42% is the minimum you can set it to, it may still be possible to mod the fan profile in the graphics card's BIOS to allow lower than 42% fan speeds. But the easiest thing would be to just return/sell the card and buy another with a semi passive cooler.
Is the card supposed to have 0 RPM on the fans at idle? If so Firebird's likely right. For a quick and easy check you can just disable all but one monitor through windows and see if the GPU clocks down. If that's the case Nvidia inspector has a tool that may help.