Hi. My system is ASRock Z77 OC Formula MB, i5 3570K CPU, 16Gb ram, Radeon HD7800 video, Windows 10 Pro 64bit. My problem is trying to install a Soundblaster Audigy Rx card. Using either PCIE x1 slot, the motherboards shows the card as "PCI to PCI bridge," not as the soundblaster. Windows doesn't see it at all as a sound card. I have installed the Creative drivers for Windows 10. The Radeon is the only other card in the machine. I have disabled onboard sound trying to get this card to work. Am I doing something wrong, or is this card just not compatible with my MB? Thanks for any advice!