How do you overclock a AMD Duron 800mhz processor ?

Not quite sure and someone may correct me but you have to go into BIOS and change your Front Side Bus. Be carefull though, the setting you put it on may cause the CPU to become unstable. Changing the FSB in steps is the way to go. Also you have to take into account the temp of the CPU. Muliply the FSB setting by the mulitplier and it will give you the CPU speed.

From what I've read of your previous posts, you have this Duron on an ECS motherboard. The BIOS won't allow you to change the FSB or RAM any higher than 100/100. There are a number of ways you could try to overclock. 1) Download CPUCool and try raising the FSB. 2) Unlock the multiplier so it can be adjusted in the BIOS. Currently it will be set on 8. (8 * 100MHz FSB = clock speed). Here's a link for you: http://www.cluboverclocker.com/reviews/other/unlocking_kit/ If you unlock it you would probably have to drop the multiplier to say 7.5 and raise the FSB. If you have good quality RAM you should get it upto 115MHz FSB. This would give you a 862MHz clock speed. You may even get 115MHz on a spitfire Duron with the multiplier at 8. Saying this, my mate was only able to get the FSB of his K7SEM upto 105MHz with his (still locked) Morgan Duron 1200. Locked up at 110. This was using CPUcool. You could find out more by doing a google search for overclocking or duron overclocking. Even if you goto the trouble of unlocking it and raising the FSB you still will probably only see the difference in performance in benchmarks - not in actual use.