I have a Gigabyte GA-P67A-UD3-P3 (DualBios, flashed years ago to UEFI) with i5-2500k with 8GB DDR3. With multitasking, my memory would run low, so I bought another 8GB on ebay (Ballistix sport) from a reputable buyer to complement my 8GB g.skill ripjaws, to hold me off for another year or so...