Intel Pentium 4 mothrbard diagnostics indicate 5 volt rail is 2.86 volts. Digital volt meter on HD connector indicates correct 4.96 volts. MB CPU overheats and shuts down. At a loss on this. //RICH SENDS
More aboutpentium volt rail
It's a P4. Likely that the power supply is ancient as well and failing or that the MB is no longer passing power through properly. This stuff happens after 7+ years.