thanks for the answer.
when i run 1 stick it will be running 1600 automaticly. but with the 2e stick in its set back to 1333, and when i put it to 1600 manualy it will only recognize 4 gb
i did read that most ram is sold as higher mhz as wat there normaly running on.
i did a memtest and got no errors so think there are no errors in the ram
can this happen because its not on the QVL list or could the mobo be bad?