Question for RAM upgrade

[geoverr]

Hey guys. I am thinking of upgrading my current rig. I have an Asrock H97 Anniversary motherboard with 2x Kingston Hyperx savage 4gb 1600Mhz ddr3 and am thinking of adding another 2x4 Kingston HyperX fury 4gb 1600 Mhz ddr3. Would that be a proper match between the pairs or end up not taking full advantage of them? Thank you in advance.

 

[Dark Lord of Tech]

Mixing and matching ram is hit and miss ......even identical modules purchased at different times can be incompatible.