I have a supermicro X7DVL-E and I've been trying to install an OS to it, but Intel boot manager always gives the same 2 error codes: pxe-e61 and then pxe-m0f. It repeats it 2 or 3 times before saying "Operating System not found". I can't seem to boot off of a DVD, USB, or hard drive. All the other hardware in the system is working fine. Does anyone know how to install an OS on an old board like this?