Originally Posted by Grantofhell
Google the VCC max most people have found for your processor and immediately set it to that number.
Horrible horrible idea! Each processor is unique to itself. While they may be technically the same, there are singularities. Ideally, you want to follow zKilla's advice. However, there are short cuts. After a while, you start to pick up the pattern on your processor.
Like mine: I can go up 100Mhz every .025V increase. My full load temp (the only one that really matters) also increases by 3-4C or so with every .025V that I increase. My processor can handle a BIOS VCore of 1.6V.
Here's what you want to keep in mind while you overclock:
You want to make sure you're not adding to an overclock that's already unstable. Depending on the processor, it is a good idea to do a 5 hour P95 stress test every 250Mhz or 500Mhz. This way you don't have to go keep going back when you think you have your max OC. You'll get the hang once you start doing it. It is a good idea to lower your multi (if you have an unlocked one) and figure out the max bus speed your build can handle (this often involves the motherboard and RAM in addition to the CPU). Once you have this figured out, you'll be able to also overclock your RAM to its limits. It, ultimately, quickens the process of overclocking your machine as a whole.
edit: Beware of your VDroop. When you set your VCore to a certain number on your BIOS, it doesn't mean that's going to be your VCore under full load. Most, if not all, of the processors will have a VDroop when under full load (this is what causes the 10min P95 to differentiate for the 5 hour P95 test runs).
edit2: You can reduce your VDroop value by doing a pencil mod or a hard mod.
edit3: Someone should move this to the overclocking section.