i have an A7N266E-AA, with athlon xp 1.4ghz cpu, both retail box, after set up, the computer doesn't save the bios, everytime i turn on the computer, i am at bios setting page
Try clearing the cmos with the jumper on your board. If that doesnt work, then try getting the latest bios version for your board so that you can flash it. That is if you can boot the system, unless of course you have another computer around. MAKE SURE that you pick the correct motherboard version that you have when downloading the latest bios.