Lately i've been considering on buying a GTX 760 4GB GDDR5. I am wondering if it is compatible with my motherboard. I am not sure what my mother board model is but it is a Maximus Formula. It is currently holding A HIS Radeon HD 3800 series video card. I am not sure what my power supply is because I don't know how to find out. I have a feeling I might need a new power supply. I would also like to know how many watts a new power supply might need to have if I need to buy one. Thanks for the help!