I bought an hp prebuilt pc with a 200w psu, and i want to add a gpu. Namely, the GT 1030. i put all my specs onto pcpartpicker, and the total wattage, including the gpu, came to 168 watts. However, when i checked the official nvidia website for details on the GT1030, it said you need at least a 300w psu. I am just wondering if the graphics card can work with my psu, or if i should just ditch the idea of buying a graphics card.