Main Issue: Underperformance and crashes most likely due to processor
Description: My PC is showing signs of instability and performance drops from what is normal for the past few months. The CPU seems to run hotter and hotter the longer it's on a game, at one point I recall it reaching 80+C sustained during a gaming session. Sometimes when gaming my computer will inexplicably crash as well. On top of that I've ran benchmark tests that say my PC is good, but when I attempted to run an extended stress test on the CPU my PC froze 45 minutes in. The temperatures of the CPU would jump back and forth from mid to high 50s to mid to high 60s celsius and peaking at low 70s during it according to Intel Extreme Tuning Utility. My idle temperature (sub 3% usage) fluctuates from 28-34C.
I have reapplied thermal paste and checked to see if the heat sink fan is spinning properly, but no fix to the issue. I remember I started noticing issues a few months back after a clean install of drivers, after which my PC could only run games in 1080p instead of 4k and they ran a bit worse, but I'm not sure if the 2 problems are related.
I don't know anyone who would allow me to use their processor to test things so I'm not sure what to do next. I don't want to buy a new processor/heat sink only to discover that the hardware wasn't to blame.
If I can provide anymore information or provide it in a better way please let me know.
Samsung SSD 850 EVO 1 TB
MSI Z170A PC MATE
NVIDIA GeForce GTX 1080
Ballistix Sport 16GB Kit (8GBx2) DDR4 2400MHz (PC4-19200) DIMM
EVGA SuperNOVA 750 B1, 80+ BRONZE 750W
The PC will either freeze or bsod, during gaming since I had the incident where the processor temp exceeded 80C I have been watching temps and found that my processor temperature slowly rises during a session. CPU loads are only around 35-50% yet the temperature rises, I thought it could be the heat sink so I cleaned it out and reapplied thermal paste but it didn't help. I mentioned in the post that during the stress test the temperature would jump from mid to high 50s to mid to high 60s, peaking at low 70s. It failed the stress test at 45 minutes in and the last temperature recorded was 58C.
I am not overclocking, no.
I do have the ability to test with just one stick, I can attempt that if need be but I'm not sure how it would relate to CPU temperature and performance.
I'll attach the results of running the diagnostic tool to this reply.