Found out what the real problem was.
I have a watercooled system and have not Connected water cooling power to the CPU_power, So when post comes up and there is no CPU fan connected, you will get a error Message CPU_FAN_FAIL. What happens next is that the system freezes.
You have to bypass this by connecting a cpu fan (luckely I had one) into the MB, and og into BIOS setting and ignore the monitoring of the cpu fan, and viola new BIOS available.
This should be raised to the BIOS programmers.
Thanks again Chino for Your help. I was sitting and tweaking my work PC, got really scared...