I read on a forum i could run an e8400 on the AB9 pro board if i flashed BIOS to beta 23. I did this and system says i have BIOS version i965-W627EHG-6A79LA1AC-23 installed. Everything is running fine with an e6300 but when i installed the e8400 E0 (i cleared CMOS etc.) i can't boot into the BIOS settings, the system loops and the post error is 8.7 (check CPU core voltage). I wonder if the people who are running this CPU in this board used e8400 C0 stepping CPUs and if there is BIOS support for E0 stepping e8400s.