No experience with RAID stuff, but I'd be surprised if changing the sound drivers affected it (but it's not impossible) - and if rolling it back to an earlier restore point doesn't fix it then it might just be coincidental.
Try re-installing the RAID drivers and/or check the BIOS settings.
Do the drives appear in Device Manager ?
Tony
Try re-installing the RAID drivers and/or check the BIOS settings.
Do the drives appear in Device Manager ?
Tony
United Kingdom