My bios (1009.002) has presets (5-10-15-30%) for overclocking, but when I change the settings nothing changes still 1.86 GHz. I have no heat issues and I would like to push this old girl to get closer to that 2.8GHz advertized speed. I have tried to read about other peoples OC issues but do not have the ability to follow their recommendations as a result of my bios presets. Would like to start a conversion with someone who knows this combinations abilities.