Problem With Overclocking!

Hey i have an AMD Athlon 64 X2 3800+ 2ghz And i cant find any way of overclocking it in the bios ive tryed to download some programs but they were'nt working and i really want to overclock it to atleast 2.8ghz

If anyone know's a way please leave a comment!

Just a tad bit more info would be helpful. Is this in a prebuilt system or a system you built? A little motherboard info would be helpful also.
Often, pre-built systems will be locked-down with no option of raising the clocks - either way you're probably looking at replacing the motherboard to overclock

If it's a Gateway, HP, Compaqu, Emachines, Dell or any box store computer manufacturer's product, forget about it. There will be no overclocking options in the bios.