VMware vSphere ESXi 8.0
There is a known issue in HPE Gen11 Servers running a System ROM (BIOS version) prior to version 2.80.
Advisory: (Revision) HPE Gen11 Servers - SYSTEM ROM UPDATE RECOMMENDED: Intel-Based Systems May Randomly and Infrequently Stop Responding During Runtime and Require a Power-Cycle to Recover
Consult your hardware vendor and update the System ROM.