Hello, I currently have 2x2GB "Apacer" CL5 PC-6400 800MHz memory sticks. I want to add 2 more GB of RAM, so i am thinking about: http://www.memoryc.com/computermemory/ddr2ram/2gbteampc26400elitedualkit.html My mobo is ASUS M4A785D-M PRO, will they work fine?