Please see if following KB answers your query:
https://kb.vmware.com/s/article/81576
https://kb.vmware.com/s/article/86100
Regards,
Sachchidanand
The most common Issue with a purple screen is hardware. Update ESXi itself, BIOS/iLO/iDRAC/ firmware and drivers for all cards.
RAID Ctrl, Network, Storage FC. should be ok
Thanks for the link, I found it useful.
