As u can see in my sig, i have 16 gigs of ddr3 1333 (these <a href="http://www.corsair.com/en/memory-by-product-family/xms-classic/xms3-16gb-dual-channel-ddr3-memory-kit-cmx16gx3m2a1333c9.html">http://www.corsair.com/en/memory-by-product-family/xms-classic/xms3-16gb-dual-channel-ddr3-memory-kit-cmx16gx3m2a1333c9.html</a> to be exact), they run fine as it is, im not having any performance or other issues anymore after i did some bios updates.