Welcome to the forums, newcomer!
Did you try and clear the CMOS for your motherboard? Disconnect from the wall and display, after you shut down the platform, remove the CMOS battery, press and hold down power button for 30 seconds, then replace the battery after 30 mins. See if that brings the temps down.
You might want to also touch the tubes of your AIO if you're running an AIO.
When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard?