Hello,
If your SER9 PRO-L 32 1TB fan is constantly running at maximum speed, first check CPU/GPU usage in Task Manager and make sure vents aren’t blocked or dusty. Update the BIOS and system drivers, then check the fan/performance settings in the system’s control software and select Balanced/Auto mode. If the fan remains at maximum even when the Official Website system is idle and temperatures are normal, it may indicate a fan-control or hardware issue; in that case, contact the manufacturer’s support with your S/N: BHX376DF70099 for further diagnosis.