820-2936 heating, "coreduetd" process using 100% process

[VinceLx]

Hello,
This machine had a dead keyboard, dead battery, but the board seems ok.
Test ASD144 is ok, but sometimes CPU temperatures are above 80º due to a "coreduetd" process using all the CPU time.
I found a solution on the net, namely:

1. In the Finder menu choose Go -> Go to Folder…
2. Type: “/var/db/coreduet”
3. Delete everything in that folder
4. Restart

Nevertheless no explanation on the origin of this, and if it can appear again.

So I wonder if this is not hardware related? How can I trust the board if issues like this can happen at any moment?

 

[2informaticos]

Software problems must be discarded with new installation.
Sometimes need to test with other disk also.
You should have USB preinstalled macOS for test in service...