ikoto15

Hi all I have this memory kit - CMX8GX3M4A1333A1 I've stress tested all the sticks with memtest86 tool and one of them have failed. Now i'm thinking to buy 1x8GB stick - CMX8GX3M1A1333C9 so i can replace the faulty one and to upgrade. In short: Is 8gb stick compatible with the 4x2gb kit?