absic is right Why are you in doubt ?!
If the sticks are double sided most probable they will not run all 4 at 1600 Mhz.It s a memory controller limitation.
Also they should be the same model and revision and paired from the factory to run with no error.
You should swap the components for know good ones if you want more troubleshooting.
Test the CPU in another mobo ,test the ram in other working mobo and so on.
Those 4 modules could run all at 1333 Mhz most probable ,if you set them manually.