Noise: very loud fan noise. However, it doesn’t sound defective; it’s just extremely loud.
That’s a different issue: by default the BIOS/UEFI is set with very conservative fan(s) curve profiles which are loud. You may adjust them easily to make it more quiet and still keep the system temperatures in check. Simply go to:
- BIOS/UEFI > Advanced > Hardware Monitor > Smart Fan Function > CPU Smart Fan1/2 Mode
To adjust both (Fan1 and Fan2) fan curve profiles. The following are the respective parameters meanings:
Fan off temperature limit: The value here is the Celsius temperature for the fan to stop working. The default value is 35, which means that the fan stops spinning when the CPU temperature is below 35 degrees Celsius.
Fan start temperature limit: The value here is the Celsius temperature for the fan to start working. The default value is 40, which means the fan starts spinning when the CPU temperature exceeds 40 degrees Celsius.
Fan full speed temperature limit: The value here is the Celsius temperature for the fan to hit full speed. The default value is 90, which means that the fan spins at full speed when the CPU temperature exceeds 90 degrees.
Fan start PWM: The Fan Start PWM refers to the speed of the CPU fan when it starts working. The default value is 70, but you can also set the value to any number between 30 and 127.
PWM SLOPE SETTING: The default value for PWM SLOPE SETTING is 2PWM, which means when the temperature of the CPU rises by 1 degree, the fan speed increases by 2PWM (adding to the start speed of the CPU fan). The value of [PWM SLOPE SETTING] can be set between 2 and 4 PWM, but it requires the “Fan start PWM” to work together.
I’m happily using these values for both Fan1 and Fan2 curve profiles:
Fan off temperature limit: 35
Fan start temperature limit: 40
Fan full speed temperature limit: 90
Fan start PWM: 40
PWM SLOPE SETTING: 2
For more details you can also use as a reference the Fan Speed Set-up Tutorial for Beelink SER5 5800U/SER5 keeping in mind the given differences (no tutorial available yet for the GTR 9 Pro).