do what airdeano said, also get something like msi afterburner and 3dmark11 for the video card (realtemp and hwmonitor are good for the phenom cpu).
For CPU, go up on clock speed in the bios until you are unstable on prime 95 then find the last stable clock speed. Do not raise voltages until you have read extensively and are familiar with it, raising the voltage will allow you to be stable where you were not stable before, but it comes at a cost, your cpu temperatures will rise, sometimes slightly, sometimes significantly, every chip is differnt. You will want your temperatures to remain under ~85-90c after prime 95 has been on for a couple hours. Raising voltages too much can burn your cpu and leave you without a computer, so read about it, and remember to have patience and do tiny tiny increments. Find a few people with the same 980 BE you have, and get an idea of what overclocks they've obtained and what voltages and temperatures they got, this will give you an idea of what to expect. Every chip is a little different, so find more than one person, I'm sure there's a few on these forums.
Same with the graphics card overclock, except you'll use msi afterburner to adjust clock speed instead of bios, and you'll use 3Dmark11 to test stability.