^ +1 Recently upgraded to Corsair 1600MHz DDR3 RAM
Vengeance doesn't fit in the first slot with my CoolerMaster 212 plus.
I've also got a similar question, I have 2 x 4GB Corsair XMS3 1600MHz + 1 x 4GB Corsair Vengeance (couldn't find another XMS3 in stock ) so after rebooting i went into bios & saw that the clock was set to 1333Mhz instead so i set it to manual & increased it to 1600MHz < Have i over clocked it? is there any harm here, since both of them are already 1600MHz? Also Why would it not set to 1600MHz in the first place? I check the timing it was same on all the 3 Sticks 9-9-9-24.