A:Answer Dear Customer, Alienware branded computers use their own proprietary motherboard, so there will be limited room for upgrading certain components. It is not recommended to switch out the power supply as there will be compatibility issues as well.
As for your other question, FOCUS GX-1000 will be able to power 2 graphics cards. Please make sure that the cables included support your graphics cards and its intended purpose. For all high demand graphics cards, please follow our directions below to avoid issues as well. Thank you.
https://seasonic.com/focus-gx#cables https://knowledge.seasonic.com/article/8-installation-remark-for-high-power-consumption-graphics-cards
