Got the rig powered up with 3 x 1070 TI.  I plugged in the 3 usb risers (powered by 4 pin molex not sata connector), and well the monitor wouldn't work with motherboard video.  I presume I need to plug it in to one of the video cards for the time being to adjust the bios for which is the primary display?

Do I need to plug the cards directly into the board first when setting up the drivers?

I got two driver CD's.. one frm MSI and one from ASUS.  Both for 1070 ti.  Should I just go to nvidia web site and download the latest 1070 ti driver and ignore the drivers on the CD's?