The noise from radiator fan of supply is vexed questions. If you want to lower the noise but have no better way. And there is good skill that how to lower noise from radiator fan of power supply for yours from S&T .
1. Clean the dust of the surface of radiator fan : At first ,prepare a piece of toothpick and a little of lubricant oil. Then disassembly the power supply and open its case, and take out the radiator fan . you can find the location of dust accumulated ,so you can clean them. And usually, it will be appeared a label of brand which be stuck with the center of radiator fan. Now you can find a bearing when you reveal the label. And then take proper lubricant oil and drop it into bearing and recover the label, and reinstall them. You must be careful not to use the inferior oil. Because they will enhance scuffing for the bearing.
2.Change the mute radiator fan of power supply: User maybe consider to use the mute power supply or change the fan. So far ,there are lots of mute power supplies in market, and they are all be inspected and tested strictly. So you can lower noise of power supply effectively. Certainly you can select the better radiator fan for the power supply. It is simple to change the radiator fan of power supply, but you must keep your eyes peeled to the part access of connect both the power supply and the radiator fan. 3.Cushion and avoid vibration: For the power supply, the position of the shock proof is not only between the radiator fan and power supply, but also between the power supply and the case. Except for being fixed firmly. You can also use the material just as strips of fabric and cushions to avoid vibration.
4.Avoid the strong current surge: sometimes the bigger noise from the blink that you switch on the power supply and there is strong current surge to occur. You can install a filter or change a better power supply.