I hope this will help anyone with this problem.The main cause for the problem is board DP67BG does not support
processor with Lithography 22nm. Solution is to install a cpu with 32nm then update bios to BG2161P.BIO download at https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=20931&keyword=bios+2161&DownloadType=BIOS&lang=eng to usb drive. Follow instruction on this link http://downloadmirror.intel.com/20931/eng/BIOS%20Update%20Readme.pdf . Your boardwill then support 3rd generation CPU.Good luck.