Whats wrong with my ram?

[Rawrz]

I recently bought a new system just put it together and in the bios i saw that my ram was set to 1333Mhz 1.5v when it should be 1600Mhz 1.65v.

Is it suppose to be like that and can/should i change it? I didn't want to change it and have something go wrong so thought id ask first.

My parts:
i3-3220
ASRock h77m
Corsair XMS3 8GB 1600Mhz 1.65v

 

[Rawrz]

Should i leave it? Change it? Return it?

Waiting before i download windows..