so these are my options :
Kingston Hyper X Fury 4gb ddr3 1866 or
G.Skill RipJaws X (Dual) 2x2gb ddr3 1866 - http://www.gskill.com/en/product/f3-14900cl9d-4gbxm
or is it ok to pair it up with a 1600 memory?
Kingston Hyper X Fury 4gb ddr3 1866 or
G.Skill RipJaws X (Dual) 2x2gb ddr3 1866 - http://www.gskill.com/en/product/f3-14900cl9d-4gbxm
or is it ok to pair it up with a 1600 memory?