Hey you guys are right. The problem was with the mobo socket,
I took my proccy out of mobo today. To check the cpu socket. What i found was a bent pin.
I carefully made the pin straight. Now all four ram slots working fine.
No i am running my rams on slot a1 and b1 :D.
Thanks a lot guys.
For everyone who planing to buy Asrock z77 Extreme :
I searched online everyhwere. Many reporting that mobo having faulty ram slots. So beware.
이런 말이 있네요 ... cpu 혹시 만지시거나 처음 장착 하셨다면.. cpu 빼시고 .. cpu 팬 잘못된것 있나 확인해보시고
cpu 재 장착 해보세요.
I took my proccy out of mobo today. To check the cpu socket. What i found was a bent pin.
I carefully made the pin straight. Now all four ram slots working fine.
No i am running my rams on slot a1 and b1 :D.
Thanks a lot guys.
For everyone who planing to buy Asrock z77 Extreme :
I searched online everyhwere. Many reporting that mobo having faulty ram slots. So beware.
이런 말이 있네요 ... cpu 혹시 만지시거나 처음 장착 하셨다면.. cpu 빼시고 .. cpu 팬 잘못된것 있나 확인해보시고
cpu 재 장착 해보세요.
메모리와 시피유를 재 설치하고
메모리를 바꿔 보랍니다
http://www.asrock.com/support/faq.asp?id=334