Hi, I have an Asrock fatality 990fx killer motherboard. I took off the heatsink over the Vrams and found what appears to be a silicon strip/gel strip. The heatsink is nothing but a chunk of metal. The strip looked in rough shape. I would like to replace it with some new material. Does anyone know just what it is and the thickness. I have seen thermal pads in different sizes, and am looking towards using that stuff. So any help would be appreciated.