Actually, to give an exact answer for this, I dont have one, sorry.
But i know for sure that if the CPU is working far beyond the normal operating temperature, this will affect the lifespan of the CPU.
Here are some tips what to do:
1. Go to this link http://ark.intel.com
Check the operating temperature for the CPU (if your system is running like 5 degrees more, then you will need to start to worry)
2. Remove the CPU Fan, remove the CPU, clean the thermal paste, and re-apply a small amount of thermal paste
Reintegrate the CPU properly
3. Check on the Motherboard Website
CMOS clear and then apply the new bios to the board.
4. Check the CPU temperature from the BIOS
If you have temperature higher than the threshold temperature from the BIOS, then it can be due to any of these:
a) bad integration
b) PSU not ATXv2.2
c) Chassis is not TAC (Thermally Advantage Chassis)
d.) Bios Issues
Last test: Try the system out of the chassis and see if it makes a difference.
Contact the Board Manufacturer for further information.
Hope this helps a bit.
All the best,