The power supply for your computer is the most important element. But it’s often the component that is overlooked; therefore, it’s usually a generic, budget brand. The power supply can cause errors and restarts because other parts in your computer are not getting enough voltage or power. If your computer is causing problems, test the power supply before spending money on maintenance.
Why do they fail? Power supplies don’t put out as much power as what they are rated for over time. Their output decreases. Overheating a computer (power supply) can cause issues. Bad power (black outs, brown outs, spikes) can cause the life to decrease as well.
You should always try to troubleshoot your power supply. Use a power supply that you know works before you spend money on a tester or new power supply. This is a simple, effective solution to solve a seemingly complex computer problem.
Purchase a low cost power supply tester as it’s an efficient, easy way to tell if the PSU is good. A multimeter is also an excellent solution because it can also be used for other things. Choose the most viable option that works best for you and your computer.
Ensure that your power supply fan is operating, especially if you have an older PC. If it is not working properly, replace the power supply as soon as possible. Sometimes fans can be blown out with compressed air. But if it’s not spinning, you need to replace your power supply immediately.
Check that your power supply is powerful enough for your operating system and your needs. If you have added extra hard drives, a powerful graphics card, and new RAM, then you should ensure that your power supply has enough juice.