please help me

Your PSU and such will handle it fine, but if you plan on gaming on the other hand....then you will need to buy a new GPU as that 210 is nothing more than to watch movies and surf the web, that's all. Or play games from the 1990's.
 
come now the gt 210 will play games from year 2010 below like prototype 1 and 2, assasin's creed 1 2 and brotherhood, battlefield bad company 2, cod modern warfare 1 and 2 black ops 1, left for dead 1 and 2, mass effect 1 2 and 3 and many other great titles. i knw cuz i played those on a 9500gt ddr2.
 


I have played some of those titles on 8400GS including max payne 3😀