in ESXi 8.0 nvidia-smi just see 3 GPU
dmesg have PCI MPS waring
Could be a hardware defect. Please check with your OEM. Or did you try to change the PCI slot so see if the issue persists?
change pci slot the issue is persists,
issue GPU MPS is 128, normal GPU MPS is 256,
is can change GPU MPS BIOS setting?