Hi Sylvia,
Thanks very much. I did the following to get to a shell so I could flash the card:
Get a USB drive
Download USBwriter- http://sourceforge.net/projects/usbwriter/
Download Archlinux ISO- https://www.archlinux.org
Use USBwriter to create bootable USB drive with archlinux ISO
Add files if you need them to the USB drive for flashing purposes
Set your motherboard to boot UEFI devices (possibly disable secureboot)
Boot and select proper UEFI version- either v1 or v2. I just did trial and error to find the right one- v1 for me
consult your card's website for flashing instructions and updates needed.
Link to UEFI commands- https://software.intel.com/en-us/articles/uefi-shell