Peter Ould said:
Hi,
My PC is powering down on its own with no explanation. I don't think I've
got a virus (keep up-to-date with AVG) so does anyone know what the problem
might be.
The PC doesn't shutdown, it just powers down.
Peter O
Almost surely a hardware issue. If battery is fully charged will it still
just suddenly shut down when only on batteries (before it should go on
standby or hibernation)?
Possibly over-heating. Maybe bad fan (easy fix). If fan suddenly starts
making a lot of noise it has shifted into high gear because CPU is too hot,
shutdown follows soon after --- means CPU heat sink compound has dried up,
become hard, and has become a heat insulator (easy fix). Does your BIOS have
function to let you watch voltages and temperature? Some do. External power
supply is not the entire power supply, other voltages are derived from it
via internal electronics - if voltages go out of spec it will shut down
immediately (expensive fix). CPU is almost certainly issuing a power off
signal to its internal power supply electronics. It might need factory
authorized service before repeated over-heatings kill the CPU permanently.