The 4930K and 5930K chips were the last of the generation where a lot of heavy lifting by the user was needed to overclock the chips safely to their limits. A lot of the Auto options were pure garbage and potentially damaging to use as well, hence why there's lots of guides and differing results.
The multiplier as listed by
@cjgardens is obviously the first thing to try and change once you're ready to actually try and overclock. But before then, you need to decide on whether you want an "always on full throttle" overclock on the CPU, or whether you want to have power savings on it as well. The second option (with power savings) is much harder to accomplish due to needing to manage more auto settings onto manual with "some" left on auto and testing to make sure they're stable for all use (minimum 5% and max 100% CPU use) but it can reduce the power needed when idling on the desktop for example, rather than sit at full tilt all the time the first option requires (so if your electricity bill is high, it may not be worthwhile to overclock using the first method).
Assuming you really do want a go, then up the multiplier of the CPU as suggested, leave everything else on Auto, and see if it boots and gets into your OS. Make sure your CPU fans are not set to manual on a low setting, push them to 100% temporarily to make sure the chip doesn't overheat. Then try with everything you do normally (game, browse, etc) and hope it doesn't crash. Only after then, do you start looking at ways to reduce power (which might not be possible or viable as it's silicon lottery based). If you reach this point (it's stable), "then" ask how its done (power savings settings). Otherwise the information on what you need to adjust and check will confuse you with the amount of stuff needed to be altered in BIOS, etc. But a word of warning, not many people have these systems anymore so the exact things to edit and change may not be remembered exactly anymore. My own 4930k rig was retired two years ago now after the motherboard died (manufacturing defect that didn't manifest until two years ago).
