ADLINK MXE-5300 Series - Manual (Page 62)

52 BIOS Settings
Launch RealTek 8111C PXE OpROM
Enables or disables execution of LAN boot-rom to add
boot option for legacy network devices.
RealTek 8111C LAN #2 (Appear on MXE5300 only)
Enables/disables onboard RealTek 8111C LAN controller.
Launch RealTek 8111C PXE OpROM
Enables or disables execution of LAN boot-rom to add
boot option for legacy network devices.
5.2.4 Advanced Power Management