Question CPU Temp Spike from 15-95 degree

[Gfost73]

Hello. I hope I can get some help here as this issue is very strange. I have noticed that my CPU (AMD FX6300) tempature spikes to over 90 Degree C for no apparent reason . normaly my CPU runs at 15-20 degree. I have stress tested the system using prime 95 under full load the CPU seems to run around 27-30 degree. however I have left on HWmonitor and see that the max temp spiked to over 95 degree this spike happened a couple times and at the time of the spike nothing but Netflix and Microsoft Edge has been running (beside the HWmonitor) .. I have a Coolermaster hyper 212 EVO and fan is running fine, system fans all running . Ive checked task manager and cant see any reason why this should be happening. if you have any suggestions on what I can check that would be great, or maybe im just being paranoid as the spike happens very fast and drops quickly . I just dont understand how the max is topping 95 degree when nothing is putting a load on the system.

 

[PC Tailor]

Probably a sensor error.
The FX6300 would shut itself down way before it really hit >90C
If you're getting normal temps under stress test, I wouldn't worry.

 

[Gfost73]

Probably a sensor error.
The FX6300 would shut itself down way before it really hit >90C
If you're getting normal temps under stress test, I wouldn't worry.
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when you say a sensor error, is that something from my motherboard or the software in general? Ive ran prime 95 for over an hour using the Max heat option and the "mixed" option and everything seems stable around 25 degree C . so I guess like I suspected I was being paranoid for nothing

 

[PC Tailor]

It can be either, commonly a software misreading.

But it can also be true, ultimately there can be a disparity between the CPU work load and the cooling unit responding effectively, or even a lag between your CPU temperature and your software. So temps could well spike randomly when there are background processes running.

It can also quite often be a "hidden" background process putting load on the CPU and the temp spiking for a moment.

Again, your PC would shut down before you cause any real damage. If it's fine under stress testing, I wouldn't worry.