You first have to know the type of power supply your are testing. Then you could test whether the power supply is receiving anything from its source. Next check if it is giving any output.
Remove and replace the power supply.
For a god quality PC power supply; 120mV on the 12V rail 50mV on the 5V and 3.3V rails
If you want it to work, it should be on I, if you want to turn it off it should be on 0.
UPS = Uninterruptible Power Supply
A surge suppressor. Better yet,an UPS (uninterpretable power supply) with a built in surge suppressor.
Voltage settings on the back of the power supply should be checked
If your power supply is not functioning, the best course of action is to first check all connections and ensure that the power outlet is working. If everything appears connected correctly, consider testing the power supply with a multimeter or testing it in another computer to confirm the issue. If it's confirmed to be faulty, replace it with a compatible model. Always ensure to follow safety precautions when handling electrical components.
any power supply with at least 175 watts
Earl Crandall has written: 'Power Supply Testing'
That depends on what you're testing it for. You would mostly use the volt meter settings to test for proper voltage output at the connectors coming out of the power supply. After verifying the expected volt output from a suspect connector, You should, in case you are wrong or a short is present, start with the highest voltage AC settings first and then reduce to lower settings and DC to confirm proper outputs.
No attempt should be made to repair the power supply. The power supply should be replaced with a power supply of equal or greater wattage.
infact i think the power supply be replaced with new one. infact i think the power supply be replaced with new one.
The type of power supply being used (AC or DC) should match the power requirements of the device it will be supplying power to.
The power supply should be disconnected first. Then comes the CPU cooler. Then the processor can be safely removed from the socket.
Remove and replace the power supply.
the power supply whines when you first turn on the system
For a god quality PC power supply; 120mV on the 12V rail 50mV on the 5V and 3.3V rails