Temp spikes i9 14900KF

[smawpE]

Weird temp spikes on my CPU.

Idles around 40-45 but every time i open an app it spikes to 80 sometimes 90c and falls back down. 

Sometimes without doing anything i get temp spikes randomly. tested with 2 different AIO same result. Temps under constant load seems to be fine. but random tasks in windows causes concerning spikes. 

What can be done? 

[SmartOne_2000]

Might need to re-paste your CPU...

[smawpE]

I suspect the pre applied thermal paste on the AIO is enough 

[Earl_Intel]

Hi smawpE,

Thank you for posting in the community,

You can also try following the steps for Overheating Symptoms for Intel Boxed Processors:

Overheating Symptoms and Troubleshooting for Intel® Boxed...

For us to further understand the issue, may I know if the processor is working fine before?

May I know when the issue started?

Are there any changes on the system before you encounter this issue?

Did you overclock the processor (Note: we do not recommend overclocking the processor, overclocking the processor may void the warranty validation of your CPU)?

Best regards,

Earl E.

Intel Customer Support Technician

[smawpE]

Hi

It started as soon as I booted up my system. No OC has been done. No changes in system, only updated bios to try to combat the issue but no success. Tried a new AIO same issue. Tried different ram same issue.

The CPU is very unstable and has random spikes.

[Earl_Intel]

Hi smawpE,

You can try to test the processor using Intel Processor Diagnostic Tool.

The Intel® Processor Diagnostic Tool Overview, Download, and...

May I know the exact make and model of your motherboard?

What BIOS version are you currently on?

Best regards,

Earl E.

Intel Customer Support Technician.

[smawpE]

I have tried but nothing came up 

I have NZXT N7 Z790 BIOS version 13.01

[Earl_Intel]

Hi smawpE,

Thank you for sharing this information with us.

I'll be sending you an email, kindly check your inbox.

Best regards,

Earl E.

Intel Customer Support Technician.