Report Asus ROG STRIX GTX 1080 - external fan connect in Brainstorming Posted October 16, 2019 Sorry Fiery, I missed your reply I'll add a few pictures here. Asus GPU tweak 2 need to be switched to advanced mode first. First are some pictures from the control part. Then a picture of the monitor part, where RPM or % can be viewed. There are 2 fan connectors, both controlled by the same fan curve in setting, but they have separate readouts in the monitor part.