I personal haven't seen much difference from the 500 through 800 series drivers, the 900 gave me the Bass speaker playing with head phone plugged in. Just my computer so far. I rolled back to the 800. If you uninstall reboot and then reinstall there should be no harm to your system. If they work for you go for it, otherwise go back to where you worked good. I think most are sticking with the 500 drivers. I don't think anyone is really satisfied with this sound system. 500 through 800 should stop the LFE or Bass speaker from playing with external speakers or head set plugged in. Check out c_man's settings, he walks you through the settings with pictures after going through that you'll understand how everything works. There are some other setting posted they all help to make the sound better. For me I'm just using external speakers or headset that's mostly how I use sound anyway.
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro