K7SEM Thermal Protection Shutdown

Archived from groups: alt.comp.periphs.mainboard.elitegroup (More info?)

No, not the usual 'my PC is overheating and shuts down' blah blah blah - but
the opposite.

I've just been testing out a K7SEM V1.0, updated it to the latest 1.2b bios,
stuck in a Duron 1300 and everything's working nicely running a fresh
install of XP+SP1... except...
the BIOS has the Shutdown temperature set to 60C, and seeing as its been a
damn hot few days here the CPU temperature has been hovering up and above
that figure when I thrashed the PC for a few hours.
Now I know I need to sort out a better heatsink/fan/airflow (I was just
testing things out and its a small heatsink on there at present) - but why
didn't the shutdown protection kick in?
I tried setting it to 65C and cooking the CPU up to over 68C (it's amazing
what a hand over the CPU fan does to the temperatures), but still no
shutdown.
Is this a known problem with these boards or am I missing something?