When purchasing a power supply, it’s important to target the considered wattage about double what your load will be.
To determine your load wattage, just use PC Part Picker
By doing this, and properly installing it in the correct orientation so that it can breathe, you can help ensure your power supply purchase will last through several builds.
If you are planning a big graphics card upgrade down the road, check how much wattage it will use–it’s always cheaper to futureproof compared to buying a second power supply down the road.
I have seen many PC Power and Cooling, eVGA, and Corsair PSUs from 10 years or older going strong because they are:
►Used with an appropriate load.
►Operated at low ambient temperatures.
►Cleaned at least 2-3 times per year.
The life of a capacitor DOUBLES for every 1-degree Celcius DECREASE in temperature.
Arrhenius’ Law of Chemical Activity