> If I use suspend some time and until I turn off the computer
> completely (i.e. not by using suspend), when the computer is on, it is
> susceptible to shutdown automatically at any time.
Check your cooling fans spin up again when it wakes up.
looks fine. The processor temperature goes up to 100°C when in use,
55°C when idle. The fan speeds goes up when in use.
Frédéric