Hai Robert Cook ,tq for answering my situation is when i open asus gpu tweak program ,it allow us to set our desire fan speed profile which is auto , manual and user defined , so when i switch to manual fan speed to test the fan , i noticed that if i set the fan speed to below 28% (0% fan speed to 27% fan speed) the fan totally no spin , once i set to exactly 28% fan speed , the fan start to spin , is it a factory design that the fan no spin between 0% to 27% fan speed , or is it faulty