I downloaded the memory clock to 1333Mhz and tension to 1,35v is working stably without significant loss of performance. Normal lapped also 1600mMhz to 1.5v for more than 24 hours but there is this controversy I decided to download the 1333 1.35V . Intel says Skylake s 1.2V wheel when it is actually 1.25. In my opinion this controversy was created to force users play DDR3 sticks out and move on to DDR4