Yes- that's pretty much as I expected - there isn't a way....so hey any geniuses out there? How about Inventing something
Most likly thing (CPU wise) to cause a shutdown is over heating.
Try a program like CPUID HW monitor to see how you CPU temp is running. http://www.cpuid.com/softwares/hwmonitor.html
And of course the stock answer / Question: Are you running the most curent BIOS code? (New BIOS fixs everything