Jorge,
Your 8276 processor belongs to the former Cascade Lake Family (server), which is supported
by oVirt (listed as Intel Cascadelake Server Family).
For CPU requirements see:
https://www.ovirt.org/documentation/installing_ovirt_as_a_standalone_mana...
In Linux, you can see the number of sockets with: grep "physical id"
/proc/cpuinfo | sort -u | wc -l
Not sure how you installed your oVirt engine, but with hosted-engine, oVirt installs with
1 virtual socket and in advanced options can be change to 2 or 4.
Cheers!
... Dean