I just got a older video card which my friend does not want at all. I bought that from him and he told me that you must not not think of to connect the graphic card to the pc with your regular power supply. I just within some days ago purchased a new system and it came with 400w regular power supply. Now that looks strong to me and the charge looks like that it can hold the power for graphic card. But I want to still know more for the same. If I need to change then which one will you recommend me.