I've been scratching my head over this problem, so I have 3 8 gig sticks, 2 are corsair, 1 is crucial technology, and only one is being used, not sure which. I've followed website guides and done many things, (unlocking maximum memory, looking for integrated graphics settings, etc.) and none of it seems to work. Can anybody help? My motherboard model is an MSI x470 gaming plus, and I purchased it around mid to late summer.