Reflashed bios and checked CPU-Z & Rammon. one small change in CPU-Zfrom 387.6 down to 387.5! no change in Rammon. Have put a thread on The Asus forum. Have noticed that original user guide shows voltage choices; 1.90, 1.95, 2.0, 2.05, 2.10, 2.15, 2.2. 2.25. I have only 1.9, 2.0, 2.1, 2.2...