To make the cooler quieter, it is necessary to blow out dust and lubricate it with machine oil; or use a syringe to inject oil under the plastic plug. Another way is to solder variable resistors. In addition, it is important to prevent dust from settling on coolers.
Necessary
oil, syringe, needle, resistor, cord, electrical tape
Instructions
Step 1
Unscrew the cooler from the power supply, also remove the sticker. Clean the cooler from accumulated dust and fill in machine oil - never sunflower oil. Thoroughly clean the area between the housing and the propeller. Do not pour oil - a few drops will suffice. If the problem of noise is that the screw knocks on the case, then it makes sense to file them - but quite a bit.
Step 2
Take a syringe and a needle, fill the syringe with oil, then use a needle to pierce the sticker and the plastic stopper under it. Inject oil under the plug of their syringe.
Step 3
If all the "repair work" with lubrication does not help, do this: turn off the power supply and unscrew it. Find the 2 cords that lead to the propeller. Let you be interested in "+", it is usually red. Trim it - preferably - in the middle. Solder a variable resistor - 1-5 kOm. When scrolling it slowly, find just such a moment when, when turned on, the propeller rotates without any impact on it. This is very important, otherwise you run the risk of throwing the power supply in a landfill! Run the power supply for 3-4 hours, sometimes feeling it with your finger. If it overheats, reduce the resistance.
Step 4
Turn off the power, evaporate the resistor by measuring its resistance. Get the same resistor, but with a constant resistance. Solder it to the place where the variable was. Wrap it with any kind of insulating material such as duct tape. Screw the power back into place.
