I'm having a weird issue with the system in my signature. It was built last November (2017). It took me a while to get the fans all under control, but it has been running very quiet for all of 2018...until last week. I updated the BIOS of my motherboard, and it wiped out my Smart Fan 5 profiles. This past weekend, I was able to get them reset and back to being quiet. However, when running any game, my fan on the graphics card goes on full bore. I had played the latest Call of Duty for a few months, with the tower being nearly silent. I fired up Lego Marvel Superheroes 2 for my nephew to play, and I get a very loud shrill from the video card. I have no idea why this would suddenly occur. I'm using the latest driver, according to Geforce Experience. Nothing internally has changed, from a hardware perspective. I'm thinking of rolling back a driver revision, but I don't fully believe this is the cause. I don't see any artifacts and no other issues aside from the sound.