I’ve been exploring the fan issue a bit since I made my review. The GPU module is sluggish to turn the fans on, but they do come on and ramp up as needed. The Shell Module, however, is a different story.
@Jimster480 you might be interested in this post I made about experimenting with the Shell Module fans. They are practically useless. I’ve stopped using the Shell Module completely as it gets too hot to type and the CPU starts throttling.