If “CPU Smart Fan” is enabled, the CPU fan speed will spin according to the CPU’s tempreature (The higher the tempreature, the faster the speed and vice-versa). In the meantime if “CPU Fan Fail Warning” is also enabled, the speaker/buzzer on the PC’s chassis will start beeping when the CPU Fan is spnning at a low speed or come to halt because of low cpu tempreature due to the “CPU Smart Fan” technology. To avoid this from happening, it is recommanded to first disable “CPU Fan Fail Warning” option and then enable “CPU Smart Fan” option.