shopperen :
I have the same CPU, and I am running 2666MHz on my memory.
Wow, I'm jealous.
Would I be able to use high speed RAM with the Intel Stock Cooler?
Oh, and it turns out the memory standard of my motherboard is 1066/1333/1600.
I've found a Z87 motherboard for about £7 or $10 more. It can support up to 2400Mhz without overclocking and 3000Mhz with overclocking.
This is why I've decided to get 2400Mhz RAM.