ups Question regarding UPS

[herschel]

Lets say I have a 800watt PSU. Using 80% efficiency, it means that at Max the PSU will draw 1000watt power from the wall socket.

 

Lets say I connect it to a 500watt UPS. This means that during power outage and the UPS battery kicked in, my PSU will only able to draw 500watt of power.

If it takes more than that (during gaming/other heavy load), the UPS and PSU will shut down.

 

My question is:

When it's NOT during power outage (power is running normal from the wall), how many watts does my PSU able to draw?

 

Is it 1000watt? Or is it still limited to 500watts of power from the UPS socket even when it's not on UPS battery?

 

Might be a dumb question, but I need to know

Thank you.

[191x7]

In most UPS-es the rated power isn't just when on battery, my 480W 800VA UPS was too weak for my old system at the time (FX 8300, R9 380X, 550W PSU) and during gaming it sounded the overload alarm. So the 500W UPS would do while in idle or regular web surfing, but it wouldn't hold for gaming for you.

[herschel]

Quote

In most UPS-es the rated power isn't just when on battery

So it might differ from model to model? Is there a way to check this?

 

By your answer, it would seem the UPS is the "true" limit of the power instead of the PSU (if the ups watt is lower than psu watt). Many guides I read about UPS suggest to use the normal/average power you use instead of max psu watt. If what you're saying is true, that would make many PSU with higher watt even more useless