Fan setting on bios problem

Jan 22, 2018
14
0
510
Im surrently using Asrock ab350 pro 4 motherboard. I changed the stock ryzen cooler with deepcool gammaxx 400. Since the fan speed only reach 1000rpm, I try to change the fab speed in bios. The default setting of cpu fan is standard mode, than another options available is performance mode and full speed. What does 'performance mode' means?