I'm putting together a Athlon 64 machine. I just received all my parts including a TR M14 SE (K8) heatsink. It came with mounted fan . When I look at the area that will sit on top of my AMD chip I see this white grease that is already applied. Am I good to go? is this all the grease I need ? is this grease good enought? should wipe it off and use some other grease?