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Hello dear Corsair users, I have Corsair Obsidian 500d RGB SE Premium Case (https://www.corsair.com/us/en/Categories/Products/Cases/Software-Control-and-Monitoring-Cases/Obsidian-Series-500D-RGB-SE-Premium-Mid-Tower-Case/p/CC-9011139-WW) There are 3 default LL120RGB 120mm fans(or QL120 120mm im not sure) on the front side, mounted by the manufacturer. And i got H115i RGB Platinum 280mm Liquid CPU Cooler, mounted on the upper side. Finally i got one ML120 Pro RGB 120mm fan, mounted on the back side. Connection schema is here: https://imgur.com/a/hDIEERf But the problem is i cant control speed of ML120 Pro (the fan on the back side). Actually i wasnt able to control any of them, but then i made some researches and forced icue to update and from device settings i changed all pin out types to 3-pin. Thus i can control fan speeds now, except the fan#4 the one mounted on the back side. Thats the fan port #4 and if i try to change its pin out from auto to 3pin it stops working. Here is my icue settings; 1- https://imgur.com/a/SWGm5rU 2- https://imgur.com/a/rhJFvl3 As you can see, fan#4 works at at 1500 RPM, and changing its performance setting doesnt work. No matter what it always works around 1500 RPM. How can i fix that? And one more thing; default fans of the case (fan#1,2,3) work around 700 RPM at quiet performance setting. But i wonder if the quiet performance means 700 rpm. It should be lower then 700 imo. Thanks for your help.