why is that a wrong ram for my motherb?
What did he write that was so hard to understand?
The LGA 1156 chips use a dual-channel RAM controller, so you want RAM in even numbers.
Does that help?
you mean it won't work properly?
It will work properly, just at a slightly slower speed, which has nothing to do with your "problem" I would be willing to bet that the "problem" is your system is running your ram sync'd with the QPI (or whatever its called, I haven't learned i7 yet.). If you don't understand dual vs tri memory, find someone to enter your bios to change the settings for you.