I have a ELITE MAINBOARD K7S5A with a 426 socket , my processor is a AMD ATHLON XP 2200+ . the computer is telling me it is a DURON 1.3 wene i updated it , it changed to a duron xp 1.3 ido not have a duron so how do i change it to the wright one ??? i tryed the jumper j4 but that was no good can some one help please thank you .

Is your fromt side bus jumper set correctly. Also check other jumpers for settings. If this desn't work you might need to update/flash your bios.

What revision of PCB (motherboard) do you have?

ya, just change your FSB settings.. i think thats it
i had same mobo (crappy a** 1, id never go back 2) i too had that prob..

The AMD ATHLON XP 2200+ has a default multiplier of 13.5. Therefore, to run it at its normal speed of 1800MHz (1795.5MHz) you need to set your FSB to 133MHz because 133 x 13.5 = 1795.5

At the moment, your FSB is probably set to 100MHz which combined with your 13.5 multiplier setting, gives you just 1350MHz. There's no such thing as a 1350 which is probably why your motherboard detected it as a 1300.

Go into your BIOS and set you front side bus (FSB) to 133MHz. Now your CPU will run at its normal speed. If it still detects its name as a Duron, dont worry. The name on the POST screen is just eye candy. Your chip will still work as an Athlon as it still had all its cache.