NO --> EVGA Precision XOC will NOT void your warranty
The stock EVGA software, hardware & factory BIOS will not allow settings that could damage your card
You could enter setting that are too much OC & your PC would be unstable ....
Nvidia Boost 3.0 also controls much of what a stock card can do --> monitoring Watts, Temps, MHz & automatically reducing power & MHz as it sees fit
Now for the Fun stuff: Max Power & Temp sliders & crank your case fans to 100% -- you want to keep it cold as possible
Custom fan curve: (50 C is a magic number, thing start to slow, Nvidia Boost 3.0 starts to do its power/temp balance thing)
1) at a minimum -- Temp in C + 10 = fan speed % ---> so 30 C = 40% fan --- 50 C = 60% fan
2) aggressive fan curve 40% base speed, then at 40C = 80% fan & at 45 C = 100% fan
First, your PC & PSU have to be Rock Solid
Second, Silicon lottery --> you never know till you test it.
Third, you need to load the Card --> Benchmark software is a good start
PSA (public service announcement) Do NOT set XOC to start with Windows,
until you know the setting will not crash your GPU. .
If you enter unstable numbers -- you do not want the reboot after the system crash to Load those settings - right 
Baby steps grass hopper:
Try 10 - 25 MHz per adjustment then test for stability
Start with the GPU (always) then after you find Max, back down 10% for Stability
Now try Memory, after you find Max, back down 10% for Stability