Fans are connected to correct fan headers, we checked that. Once the server was shutted down unexpectedly, maybe this caused this problem ?
Here's some system events:
A corrected hardware error has occurred.
Reported by component: Processor Core
Error Source: Corrected Machine Check
Error Type: Cache Hierarchy Error
Processor ID: 52
The details view of this entry contains further information.
I get allways some of them just with different IDs
Use selview (either the In- OS version or the EFI version) and look for critical errors in the log.