I found my Marvell controller here if it helps Thank you. This seems to have helped my issue with the Marvell 91xx question marks in the Device Manager. After checking with Marvell's official site they only had drivers up to Win7. Granted, after my format reload I suppose I could have loaded it while I still had Win7 loaded, but I didn't.
Also, I had this issue prior to the format/reload if I recall correctly. Driver Webcam Asus Windows 10. Amazing that you found this and that it is compatible with my ASUS Rampage III board.
5 drivers are found for ‘Marvell 91 xx Config Device’. Date: 2012-10-09. File Size: 1.6M. Supported OS: Windows XP 64bit, Windows Vista 64bit, Windows 7 64bit, Windows 8 64bit.