I have a Samsung Series 3 NP365E5C-S02UB Laptop with Amd A8-4500m. I received it as a gift and recently put a ssd and upgraded to 2x4gb samsung 1333mhz ram. In taskmanager under memory it says half the speed 667mhz. When I put in 1600mhz ram it read 800mhz. But when i put my memory into an hp it reads at the full 1333mhz. I updated to windows 8.1 pro and have all updates through windows update and the sw tool. Thanks in advance.