Hey, it's not easy to know what's going to help....
Me, wouldn't touch Easy Tune or AISuite or any software OC. You don't have your rig in your sig
so reading back, a GA-X79-UP4.
I see a few ppls have had fun with these already. http://www.overclock.net/newsearch?search=GA-X79-UP4
If you r worried about data corruption get something like Paragon Drive Copy and make an image so you can restore instead of reinstall. I don't bork my installs that often, but that's one way.
Since you have a Gigabyte, I'd suggest this guide: http://www.overclock.net/t/1189242/sandy-bridge-e-overclocking-guide-walk-through-explanations-and-support-for-all-x79-overclockers
If it is stable at stock, then you should be able to overclock. The sort of things that can mess you up are faulty ram or PSUs. Doesn't hurt to memtest your ram to make sure it's up to it. Generally though your BSODs can tell you roughly whats wrong with an OC - http://www.overclock.net/t/935829/the-overclockers-bsod-code-list
No magic answer though...generally takes a bit of time, patience and experimentation to find what works for your particular hardware combination. Remember, even if someone has exactly the same parts as you they won't overclock the same. There are quality variations, hence you can get "golden" bits and "lemons". Hopefully you are closer to gold than lemon.