Unusually the Virtualization was enabled when I got this server but all the NICs were diabled in the BIOS including PXE boot!
Advanced -> Advanced Chipset Control
PCI Slot 1 Option ROM: Enabled
Onboard LAN1 Control: Enabled
LAN1 Option ROM Scan: Enabled (you need it for PXE boot)
Onboard LAN2 Control: Enabled
LAN2 Option ROM Scan: Enabled
*you will need to reboot and enter the BIOS again before the NVIDIA Boot Agents for the NICs/PXE Agent is visible in the Boot section and boot options. You'll also need to enter the "Boot section" and hit "x" to enable each one of them for booting and assign them the correct boot order ou prefer.
PCI BEV: 2-NVIDIA Boot Agent 277.05 (eth0)
NVIDIA Boot Agent 277.0547 (eth1)
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