Is there any software than can help me to overclock my graphics card and processer?
If you don’t know what you’re doing then you shouldn’t really attempt to overclock anything untill you do. Just be careful or else you’ll fry your processor, go up in small increments, this way hopefully you’ll tell if it’s causing errors way before you fry any components. Do some research first. Also remember that overclocking your processor will also affect your RAM so you need RAM that can overclock too, and get better cooling than the stock fans, because everything will run hotter when you overclock. If you have an ATI or NVIDIA card then they both have software that allows you to overclock your graphics card, but the same applies, be careful.