First things first.... "Can I kill my hardware through overclocking?" In a word, yes, but any overclocking will stress components. You are pushing them past their standard speeds and what they have been rated for. However generally the impact this has on the life-span of the component will be very small. Maybe your CPU would only last for 10 years instead of 20, but let's be honest, who keeps a CPU that long? When you increase voltage, this is where things start to get interesting. You can never tell which CPUs will die from 2v, and which will last forever. It absolutely depends on that particular CPU. Therefore I cannot tell you which voltage you will have to run for certain clocks, or which to run to get the most out of your chip, but I can certainly give you guidelines to stay within - nominal amounts which *shouldn't* damage on any Athlon XP CPU. Now, where was I... I have to just say that this is a guide to help you overclock, and the methods within should work fine, but if you break your hardware through overclocking then I accept no responsibility for that. I would suggest reading up on overclocking and associated topics before hand, so you have a good basic understanding of the concept, terms used, and risks taken before you start. I have helped many people successfully overclock, and though people will still ask questions about their individual overclocking-related problems, I thought I'd compile a <hopefully> useful thread about it, so that perhaps we won't see as many 'How do I overclock?' questions! This guide should be good for beginners. You have two ways of doing this... we'll start with the easiest. This is a generic guide, so if you're unsure of anything at all, or stuck, or your particular board has different options, then PM moi. Finally, remember that every bit of hardware has it's limits and that even if someone has the same components as you, expect different results. No two CPU's are exactly the same, and overclocking is essentially based on luck. Take notes along the way with pen and paper. Don't forget to watch temps at all times - Motherboard Monitor/MBM5 is good for this. ( http://mbm.livewiredev.com/ ) Never let it get above 60°C. Good cooling is very important! Also watch your voltages. Overclocking will increase power consumption, so make sure your PSU is sufficient. Remember you need to stay within 5% +/- fluctuation of ATX tolerances on each rail. It will depend on your components as to how much voltage I'd recommend for them but for reference and safety, I'd say to stay below 1.9v vcore / 2.9v vdimm. For reference... vcore=CPU voltage, vdimm=RAM voltage, VDD=Chipset voltage. Let's begin... If you have an option for CPU Interface please enable it for best bandwidth. Running with it disabled really isn't worth it unless you're experiencing stability issues. Note this loss of bandwidth would equal about +25MHz FSB. Max CPU MHz 1. Go into BIOS. 2. Change Multiplier to 10x 3. Reboot & go into windows 4. Run Prime95 Torture Test "In place large FFTs" for 30mins (hopefully successfully.) (Options >> Torture Test) 5. If you BSOD, Prime errors, or you can't boot into windows already then increase vcore 0.025v. 6. If the settings work okay, up multiplier 0.5x again and start over. 7. Repeat until you've maxed out the chip. You have the max MHz, but we want to achieve the same speed using a combination of high FSB/low multi. Why? Memory bandwidth. The higher the FSB that faster the CPU communicates with the mem controller and the faster the data is accessed. Why run 1:1 (FSB/RAM frequencies synchronised) ? Otherwise you will incur the wrath of a major latency penalty, killing performance. Max FSB 1. Into BIOS. Divide your top speed so far by 166. Round to nearest single decimal place, and set your multiplier to that. Set your FSB to 166. Set RAM freq. to 3/3, 6/6 or 100% to ensure it's synched. 2. Reboot, into Windows & Prime. 3. Any problems back to BIOS, increase vdimm voltage, chipset voltage, try again. 4. If no problems, then back to bios, and take that highest speed and divide it by 176. Set multiplier to the answer, and set FSB to 176. Back to #2 5. Keep going!! Take the max CPU Speed, divide by 180, back to #2 6. Divide by 196 7. Divide by 200 Now, you'll get to a point where that FSB just won't go any higher.... remember that number. Now you should now have written down on a piece of paper... 1. Highest CPU Speed so far. 2. Highest FSB Speed so far. 3. vcore & vdimm voltages required to get those figures.