i need help please.

i'm new in the computer world. but i have done some research myself for the past year.
two days ago i bought me a new rig am2 x2 3600+ and gigabyte ga-m51gm-s2g.
i want to overclock it by upto 30% only coz i feel my previos rig is much faster than this inspite of being a dual core cpu.

my problem is i cant seem to find anything in the bios to help me overclock it even a little. the only thing i can find is the memory timings which only appears after pressing CTRL+F1. other than that, no more.

can anyone help me?

which bios has the option on increasing the fsb, multiplier setting, memory timing adjustment and so on?

currently my bios version if F5.

thanks!