8knxp bios 5v fail?

the bios of my rev.1.0 8knxp shows that the 5 volts has failed but the
system seems to be running just fine. i did not oc anything just running
standard it hang when i was using my pinnacle pctv pro for a while, i did a
reboot and all was running fine but stil the bios said that the 5v has
failed,i tried clearing cmos but it didn`t matter. the psu is an chieftec
360w en should do just fine with current hardware power req.in this config.
Never had any probs with 8knxp Does anyone know what to do? I`m not that
technical with this.