k10temp show over 100 degrees temperature on EPYC Milan servers from DELL and SMC

[Jinpu Wang]

Dear experts on the list,

We've noticed many of our EPYC Milan servers from different vendors
(DELL  and SMC) show 100 degrees, eg

sudo sensors
k10temp-pci-00c3
Adapter: PCI adapter
Tctl:        +117.5°C
Tdie:        +117.5°C
Tccd1:        +67.0°C
Tccd2:        +65.2°C
Tccd3:        +63.2°C
Tccd4:        +63.8°C
Tccd5:        +67.2°C
Tccd6:        +63.5°C
Tccd7:        +64.2°C
Tccd8:        +64.8°C

 sudo lscpu
Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   48 bits physical, 48 bits virtual
CPU(s):                          128
On-line CPU(s) list:             0-127
Thread(s) per core:              2
Core(s) per socket:              64
Socket(s):                       1
NUMA node(s):                    1
Vendor ID:                       AuthenticAMD
CPU family:                      25
Model:                           1
Model name:                      AMD EPYC 7713P 64-Core Processor
Stepping:                        1
Frequency boost:                 enabled
CPU MHz:                         2479.705
CPU max MHz:                     3720,7029
CPU min MHz:                     1500,0000
BogoMIPS:                        3992.43
Virtualization:                  AMD-V
L1d cache:                       2 MiB
L1i cache:                       2 MiB
L2 cache:                        32 MiB
L3 cache:                        256 MiB
NUMA node0 CPU(s):               0-127

We've seen such high temperatures even on  idle servers.

We are running LTS kernel 5.10.136, but checking the git history for
k10temp driver, I don't find any missing fix.
My questions are:
1. Is it normal to have such high temperatures for tctl?  can we trust
the value?
2  Do we need to worry about such high temperatures?

Thx!
Jinpu Wang @ IONOS Cloud.