Bad airflow in your computer can lead to increased temperatures in your computer, and this overheating can cause issues. Heat is generated from the CPU, video adapters, memory, etc.
Check the cooling systems. Make sure fans are working properly. Check the heat sinks to make sure they’re attached properly to the chips. Make sure that cooling systems are clean and free of debris that may be inhibiting air flow in the computer.
Most modern computers will include sensors that will let us know the temperature inside of our computers, and the temperature of individual components. You can see these statistics in your BIOS or you can use third party software.