How do you troubleshoot power supply?
Plug the PSU power cable into a wall socket or surge protector, and turn on the computer. Most power supply models have a light on back of the unit that glows when it’s powered on. If it doesn’t light, try a different power cable and a different socket to eliminate those items as the source of the problem.
How long should a PSU last?
Under normal intended use, a PSU should last a long time—at least five years, possibly up to 10 years if you’re lucky. But if you start putting the power supply under high loads over long periods, it can be overstressed.
How do you troubleshoot a power supply?
Open the case and unplug all the drive power cables and the power cables feeding the motherboard. Check the power lead to the CPU fan. (This is usually a small-gauge pair of wires that can break if you pull too hard.) On some PCs, you must also remove the power switch.
What is computer switching power supply?
A switched-mode power supply ( SMPS ) is an electronic circuit that converts power using switching devices that are turned on and off at high frequencies, and storage components such as inductors or capacitors to supply power when the switching device is in its non-conduction state.
How does a switching mode power supply work?
A switch mode supply works by turning the mains electricity on and off very quickly to reduce the voltage. In this case the reduction in voltage depends upon the ratio of the on time and off time. Switching takes place very fast, at 10,000 times a second or quicker.
What is power supply troubleshooting?
Power Supply Troubleshooting. Troubleshooting the power supply basically means isolating the supply as the cause of problems within a system and, if necessary, replacing it. CAUTION. It is rarely recommended that an inexperienced user open a power supply to make repairs because of the dangerous high voltages present.
https://www.youtube.com/watch?v=PPLjXkca7eo