Newbie here trying to help a friend (prolly a bad idea to begin with;) BIOS shows chip is an AMD XP1500 instead of 2100. Can't correct as PC won't boot unless you clear cmos. If you run it at the default settings, it comes up with a checksum error, then you have to press f1 to continue...it runs fine, but the bios is screwed, so the time is off, and you can't set any of the onboard stuff. Any ideas? I don't know what to try...