well, overclocking is basically the same with every card, new or old.
using afterburner
make a fan curve that seems okay for you, 60% at 80 degrees is a good place to be
up mhz by 10-20 and see if its stable after everytime
last time it crashes turn it down to 2 before it crashed
then youre set.
same with memory but jumps of 50mhz
done