Hey everyone, so i had a thread about this and how it worked for me, so i'll explain it simple for all to try. First what does burning in do? Well it basically is supposed to help you achieve a higher overclock, with a lower voltage, thus overall lower temps as well. I say supposed to because there is no hard science as to how this works, it's really speculation but from the week i've been looking at thread after thread in forum after forum, i'm beginning to see a trend towards the success side over the failure side. So let me get started. 1. The first thing to do is bring your computer to stock clocks, and drop your htt to 3, and your mem down to 100, or a 1/2 divider. this eliminates the memory and htt bus from causing any error at all and leaving the only errors to the cpu. 2. Next drop your voltage from stock 1 notch at a time running prime95 or orthos for about 1/2 hour. Do not worry about errors, keep going till the computer outright freezes, then go back up one notch and run prime or orthos for 1 hour making sure that your computer isn't going to freeze. 3. this is where the burn in begins, it's best done while you will not be using your computer because you will not be able to do anything while it's int he process. i started with a 1.4v on my 4000 and ended up starting at about 1.29 tested with a multi. Begin running prime, or orthos, do this with the max heat test, do not set it to halt on errors, just get it to run. 4. Let it go for about 8 hours. just let it go, i worried about my pc while i was at work due to the fact that it might freeze, so if you are going to do this at work, set your computer to do no memory dumps and just auto restart. continue this for 8 hours. 5. when 8 hours has passed it's time to make a change to the voltages, drop 1 more notch and test for 1 hour of prime, if it gives erros this is ok it should not freeze. if it did not freeze let it run another 8 hours. 6. continue this until you cannot go any lower with your volts without it freezing. if your cpu cannot undervolt much simply raise cpu clocks at standard multi until the computer spits out errors and doesn't freeze, this also works, although i'm hearing it's not as effective as the undervolt method. if this has been performed steadily for some time, i did this over a 4 or 5 day period on my 4000, you may see some results, i did see some results, i spent hours attempting to oc my cpu when i first got it, and came to the conclusion that it took 1.5375v to keep it just barely stable at 3.10ghz, and at that it spit an error or 2 out after about 6 hours prime, which is stable to me. I'm not at 1.44v at 3.15 and i've seen it go 8 hours now orthos and prime stable. i'm going to further keep up with this guide to give you my new max cpu oc if any, but if anything did happen i'm happily gaming and benching at .14v less then i used to be, that's less temps and less power to keep my cpu cool. hope you guys give it a try and please post your results here, so that i can see how effective this may be.