OK... Don't panic, I will help you!
What is the revision of your MB, it is probably written on directly on the MB or on a sticker on it. There is bunch of version of it, check there :
<A HREF="http://www.ecs.com.tw/download/dw_list.asp?submenu_id=26&function_id=4" target="_new">http://www.ecs.com.tw/download/dw_list.asp?submenu_id=26&function_id=4</A>
When you know you MB Revision number, get the newest BIOS for it. Then, we will continue to troubleshoot...
Another interesting link for you :
<A HREF="http://www.ecs.com.tw/support/techcpu/athlonxp.htm" target="_new">http://www.ecs.com.tw/support/techcpu/athlonxp.htm</A>
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