Yes, In Bios you should have a selection for onboard video.
Install the driver(or ccc and driver) for your new card. Turn off computer, pull plug, open case.
Install new card. Connect monitor to new card. Boot to Bios and disable onboard video. reboot.
Thanks, guys. Worked perfectly. My option was actually for "IGX" in BIOS, but same difference. And for anybody else with the same mobo, just FYI, when you disable the onboard graphics, you get a half gig of RAM back for your system.