Will this Kingston module work on the T21? http://www.newegg.com/Product/Product.aspx?Item=N82E16820172003 I read here on another post that this Crucial brand module works for the T21 2648 - http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=1043D6E0A5CA7304 Only difference that I see is the cas l...