I have an older Dell Power Edge 2950 - II which is running Windows Server 2008 R2, I need to upgrade the OS to Windows Server 2016 Standard. However when I check the bios (ver 2.7) has not option to select the Boot Sequence to start from a USB, I have only two options available to boot from SATA CD-ROM (which is a Dvd) and Hard Driver C:
Make sure USB settings in BIOS are set to allow BIOS/boot access to USB.
Also, check the hard drive C: settings, as it often emulates HDD for booting.
found this thread after some more search helped to sole my issue https://www.dell.com/community/PowerEdge-Hardware-General/boot-PowerEdge-2950-from-USB-drive/td-p/44...