Lost the bios password

I have a notebook ThinkPad X31 and a lost the bios password, I try to reset from batery but don’t works!
when I turn on my computer that have 2 errors:
– 0271 check day and time setting
– 0176 System Security – the system has been tampered with.
Please help me !

can you sent me : lionking857@yahoo.com

thanks alot.