Hello, dear.
As I know, the main cause of the purple screen with the NMI error reported for VMware ESXi follows:
●The server firmware does not match.
●The memory is faulty.
●The mainboard is faulty.
Therefore, you can try the following methods to solve the purple screen problem:
1. Upgrade the server firmware to the latest version.
Firmware download link: BIOS firmware iBMC firmware
Upgrade Guide: How to upgrade the firmware
2. Remove and insert the memory module or replace the memory module.
You can see the video for 2288H V5 Server Components Installation and Replacement.
3. Replace the motherboard.
Hope this can help you!