I am getting a new motherboard so I am going to apply new thermal paste to my CPU. My friend gave me this thermal paste, not sure what it was. Can I use any thermal paste or are some just bad? Also how much should I add? And how do I remove the old thermal paste (finger, special cloth, how do I know if it's all gone, etc)? I have never applyed this stuff so I want to make sure to do it right. Thanks in advance.