as the title asks, i currently have 2 4gb sticks of corsair vengeance and am starting to use photoshop/illustrator more often and am looking to get a total of 16gb, what are the odds of having a compatibility issue with buying another set of 4gb sticks of the same series
http://www.amazon.com/Corsair-Vengeance-PC3-12800-1600mHz-CMZ8GX3M2A1600C9B/dp/B004QBUL1C/ref=sr_1_3?s=pc&ie=UTF8&qid=1457937946&sr=1-3&keywords=corsair+vengeance
http://www.amazon.com/Corsair-Vengeance-PC3-12800-1600mHz-CMZ8GX3M2A1600C9B/dp/B004QBUL1C/ref=sr_1_3?s=pc&ie=UTF8&qid=1457937946&sr=1-3&keywords=corsair+vengeance