Help with cougar helor 360 on asus rog strix 370e

[Drew314]

Hello everyone! So I recently switched my cpu cooling method over to liquid cooling for my 8700k. I have a asus rog strix z370 egaming mobo. The pump has two wires one 3 pin connector and the other is a 4 pin which I assume is the rgb lighting for the pump.. now I have an AIO pump 4 pin on my mobo but no corresponding female plug from the pump. The 3 pin from the pump fits on the 4 pin connector leaving 1 pin exposed...on start up the pump fan runs...which means it's cooling...and the rgb lights are working and pump and radiator fans are synced ..but I get a cpu fan error on start up that requires me to enter bios..wondering if anyone has some helpful info.

Thanks!