Don't bother underclocking your CPU. You should run it at the speed it's designed to run at. If it reaches 80 C under load then there must be a cooling problem, as the processor is meant to be run fine like this.
So what am I supposed to do now? Just get a bigger case with more airflow, or maybe get a new cooling thing [What ever my laptop uses for cooling, haven't opened it yet.]
nope...swapping mobo w/ desktops is impossible...Look at the size of those things. I bet it woudln't even fit into the case even w/o all the keyboards, touchpads, batteries, HDs, CPUs, etc.