Please send us a photo of the SN code（two lines） at the bottom of the machine and main page of bios？
Regarding the fan noise, please try…
Here are some potential solutions：
① Overheating. If your PC is overheating, please check if the fan spins. You can also turn off the turbo boost. Adjust power settings: Adjust the power settings on your PC to optimize performance and reduce heat generation. Lowering the maximum processor state or using power-saving modes can help.Go to control panel —power option—change to High performance— change plan setting—advanced setting —processor power management— change both 100% to 99% , click save.
②Remove the fan, clean it and apply a very small amount of nonconducting lubricant to the shaft and reassemble the unit
