Is My PSU Wasting Energy?

[dann20201]

Hi Guys.
My PC is supposed to use around 350-450 Watts. My PSU is 650W. Is my PSU always outputting 650W, which means wasting 200-300 Watts on nothing? Or is my PSU only outputting what my system needs, "saving" 200-300 Watts?
Thanks.

 

[13thmonkey]

it outputs what the system pulls + inefficiencies.

 

[dann20201]

it outputs what the system pulls + inefficiencies.

What do you mean by "+ inefficiencies"?

 

[Utkarsh Mahajan]

it outputs what the system pulls + inefficiencies.

What do you mean by "+ inefficiencies"?

The bit of extra power so it can be fulfilled the lost power. If i ma correct.

I am having the habit of using :O which makes :O 😛

 

[13thmonkey]

Yep, so PC requests 200W, is 95% efficient, it pulls 210W from the wall.

 

[Jake_142]

Yes