X51-R1 motherboard, retail case, Windows 8.1 Realtek ALC892 driver?

My video game manufacture wants me to update my audio Realtek ALC892 driver. But no new updates from Dell for X51-R1? What to do they say my drivers are causing my game to crash and I need to update them but there is no new updates from Dell available? So what can I do? How do I update them? Anyone have any ideas on this?