Personally, I've never bothered to check the QVL for RAM on any motherboard I've used. I've never had a compatibility issue yet /knocks-on-wood. I don't think it's a big deal. The only problem you may encounter is if something does go wrong and you contact ASRock, they will most likely automatically blame the non-QVL RAM in their troubleshooting.
About the drivers, just go straight to the hardware manufacturers for the latest drivers. Intel for the chipset, Realtek for the audio, etc.