Hi!

My bad. I was referring to the whole tower. Without the monitor and other stuff.

As I have mentioned before am not tech savvy.

I think the psu of the tower is the one that came with it when the original owner bought it brand new.
As of now its not gonna be a problem i think, since that I would probably go for my initial plan to buy the tower and upgrade 1 gpu.

I am still trying to figure out what gpu to add in the tower, budget and compatibility wise.