Just bought a brand new DS1821+ but I end up in a boot loop on all Windows VM's ("Why did my PC restart?")

Hey all, I’m not sure where else to go with this problem but I just bought a new Synology DS1821+. I immediately added a 10GBE Synology NIC to it and also 2x32GB of Vcolor ECC ram. (Not supported officially by the Synology itself).

One of the things I want to use this NAS for is Windows VM’s. I’ve now tried 4 scenario’s and all of these end up with the same boot issue.

  1. Windows 10 on Legacy BIOS
  2. Windows 11 on Legacy BIOS
  3. Windows 10 on UEFI BIOS
  4. Windows 11 on UEFI BIOS

I’ve ensured the VM’s have 12gb of memory, and have a 128gb disk.

When installing the VM everything goes fine at first, it takes very long to progress (sitting for an hour at the “Just a moment” screen for example). But eventually all of the installs end up at the following screen with the message “Why did my PC restart?”.

Does anyone have an idea what this could be?

I only just bought the NAS so it’s still “Optimizing” my 4 disk SHR volume.