PSU's are most efficient at 40-70% usage of their wattage. Running a computer with 550w usage with a 550w PSU is possible but highly unsustainable for the long term for the PSU. Even if you did do the above example you would have to buy a very nice PSU and that still might cause problems. Personally when I am buying a PSU I look at the wattage requirement on pcpartpicker and get a PSU that is 200 watts higher capacity. This ensures that you will not be...Is it better having the exact same watage amount from my components to be equal as the wattage amount my power supply reaches, or is it better to leave the power supply with few non-used watts or can I have few more watts than what my power supply max wattage range can have
PSU's are most efficient at 40-70% usage of their wattage. Running a computer with 550w usage with a 550w PSU is possible but highly unsustainable for the long term for the PSU. Even if you did do the above example you would have to buy a very nice PSU and that still might cause problems. Personally when I am buying a PSU I look at the wattage requirement on pcpartpicker and get a PSU that is 200 watts higher capacity. This ensures that you will not be redlining a PSU while using it and puts it close to or inside of that efficiency curve I mentioned above.Is it better having the exact same watage amount from my components to be equal as the wattage amount my power supply reaches, or is it better to leave the power supply with few non-used watts or can I have few more watts than what my power supply max wattage range can have
Is it better having the wattage amount from my components to be equal as the wattage amount my power supply reaches, or is it better to leave the power supply with few non-used watts or can I have few more watts than what my power supply max wattage range can have
Thank you so muchYou want you power supply to have "more watts" than the total of the components.
How much more?
Personally I like about 200 watts more.
ThanksYou always want to have a higher wattage PSU than the max number needed for the system, plus the quality of the PSU makes a big difference here. A cheap 750 watt PSU often will not deliver anywhere near that for example, some units just plain lie about their capability.
Keep about a 25%-30% headroom in the PSU or more if at all possible, if you need 300, get a 400. If you need 700 for the system then you are in the 1,000 rante.