Simple answer is... ummm maybe. They may play well together or they may not. First thing make sure and put the sticks beside eachother, not in the same color slots. If the two sticks have different timings (numbers that look like 9-9-9-27) then put the one with the bigger numbers closest to the CPU. This situation is not idea. It likely can be made to function, but bios tweaks may be neccesary.