[CentOS] Tired of temp induced shutdowns

My notebook has a habit of getting hot, and Centos just shuts down.  
Just did it again:

Jul 15 01:35:12 nc4010 kernel: ACPI: Critical trip point
Jul 15 01:35:12 nc4010 kernel: Critical temperature reached (113 C), 
shutting down.
Jul 15 01:35:12 nc4010 kernel: Critical temperature reached (55 C), 
shutting down.
Jul 15 01:35:13 nc4010 shutdown[9847]: shutting down for system halt
Jul 15 01:35:13 nc4010 gconfd (rgm-2904): Received signal 15, shutting 
down cleanly
Jul 15 01:35:13 nc4010 gconfd (rgm-2904): Exiting


What I would like to know is where are the threshholds stored?

It would be nice if some alarm went off (like with low battery), giving 
me time to grab the blue-ice block out of the freezer (or at least 
saving some work and pointers!).