I just bought a AMD phenom II x4 955. I have Gigabyte Technology Co., Ltd. GA-MA69GM-S2H (Socket AM2). The mother board says it supports the AMD phenom II X4 955. I've downloaded and install the latest bios F7e and stills runs at 1.6 GHz. I have disable cool and quiet and loaded optimum defaults. However the cpu still runs at 1.6 ghz and the bios isn't allowing me to change the multiplier .