AFAIK all are affected. However, most notebooks only use two SATA ports (one HDD, one ODD). If the two SATA ports are ports 0,1 (the SATA 6G ports) then they will never experience this problem and thus are "safe." Whether the notebook manufacturer will continue shipping them is another matter. Also, some larger notebooks can handle multiple HDDs, and some notebooks have eSATA running off the chipset. In those cases, then some of the ports may have problems if you are the lucky 5-15% that Intel claims will experience the problem over the course of 3 years.