Thats an asrock mini pc right?
I dont think those type of systems ,kinda like notebooks would take so well to upgrades.
Is it still under guarantee?
a 90w psu. thats small by desktop standards.
full power is 35-40 w for cpu? maybe 30-35w for the gx card and say 6-7 w for fans n drives n memory.
That on paper doesnt give you an option to upgrade to a gx card that could consume another 10w. I mean you might get away with it but those small boxes get very hot inside it seems and that wouldnt help power efficiency.
Is it a straight swop mechanicaly.. maybe there are special connections on your card that wont be on the 1000m.