What is the most logical next event?

How to fix computer overheating caused by blocked heat sink
Unplug your computer before opening the case.
Wear a static wrist guard if possible, or touch the metal case before handling anything inside, to ground any static charge you may have.
Consider other options first.
Overheating issues are also often caused by poor air circulation in the computer case. If you have space, adding another fan can help.