hi i have 2x2gb sticks of g skill ddr2 6400 on a evga 680i mb .i have timing set to 5 7 7 19@2t 1.9 volts i recently bought more 2x2 sticks of the same due to installation of cod ghosts. my question is should i back the overclock down to 4 4 4 12 because of the 4 sticks now have heard running 4 sticks on overclock stresses the motherboard or is that now true . thanks