No break question and watts

[Jesus2028]

If a have a PC that uses 750 watts, 2 displays
i would need more watts or it can be 360 watts and 550VA or something like that.
Is must have more watts or is okay with 360 watts and 550VA?

 

[emdea22]

How do you know it uses 750W? Have you measured the power draw at the socket? PSU max wattage =/= actual power draw

Secondly, VA is not a SI unit and should be avoided in your situation. In most cases VA is actually the Wattage so 750W(your required power) divided by 110V (220V for EU) is ~7Amps (3.4A in EU) so you would need a power source capable of outputting ~7A or 3.4A depending on voltage used.

 

[hang-the-9]

If a have a PC that uses 750 watts, 2 displays
i would need more watts or it can be 360 watts and 550VA or something like that.
Is must have more watts or is okay with 360 watts and 550VA?

For a system that has a power draw of 750 watts, I'd be using a 900-1k watt power supply to run it, probably closer to 1k. Anything that will use 750 watts will put a pretty decent stress on the power supply under load, I'd want enough headroom where the power supply is not running at max output all the time.