iPXE, Wimboot, and Dell R630

[NiKiZe]

Basic information is missing - what is the bluescreen? run non automatic reboot mode and make sure to get the actual messages and codes from the bluescreen

Also test original boot.wim from installation media (because drivers can be the issue if you have modified it) and also test that boot.wim from a usb drive and make sure that works, before we assume that it is at all related to the use of wimboot.