Hi, I have a Compaq Deskpro EN P866 (small form factor). During POST,
I receive the "Invalid electronic serial number" message that requires
me to push F1 to continue.

When I looked in the BIOS, the serial number fields were all blank.

I'm new to doing this. Is there a way for me to find the processor
serial number so I can re-enter it? Is it this easy?

Thanks,
Vin