Intel 12700k - two cores overheating and thermal throttling

Solution 1:

All the cores are roughly equal in terms of power, but silicon design might mean that those cores are packed away in a slightly worse area. They might be in the centre of the cluster and surrounded by all the other heat generating cores and so run a few degrees hotter than the rest which are on the periphery of the silicon.

The only real options are

  • The heatsink is not making good thermal contact. You should unmount it, clean and replace thermal material and refit.
  • The fans are not properly ramping up to deal with the thermal load. PWM might not be working - make sure it is connected to power and motherboard fan connectors as required
  • The heatsink/AIO unit is underpowered for your system or overclock settings.