hydracool

Thanks... I returned it and got new unit. It's working now.

Yes. Bios is also latest

This is new build with Asus prime Z390-A and i7 processor. When I installed H100i Pro, it is getting detected under human interface device in device manager and at the same time under USB error 43 displayed. Also it's not detected in Link software( Version provided by Customer support team). My computer is completely missing the VID_1B1C&PID_0C04 entry in registry What i tried so far 1. Change USB ports. restart PC. 2. Try connecting to external USB ports. 3. removing ALL USB devices to ensure no conflict. 4. Uninstalled conflicting software's. Any other pointers?