livng00d

Hello. Got a similar issue upgrading to the GTX780 on M17xR3 windows 7, but with an added goodie, that with the new 780 card installed, laptop doesn't boot and gives one beep. We are trying to uninstall all the graphic drivers again, and sound card drivers, and follow your steps using the same files as listed in your post. The issue we've been having was that drivers wouldn't install without the card in, and with the card in won't boot. We'll update this post after trying what you suggested.