i also have that i7, and i have a maximus vii ranger , only 7 years later i can not afford to upgrade haha, did you ever get the supremefx sorted? im still having problems with it now and cant afford a £250 upgrade to change board
Have you installed the Realtek Audio driver version 184.108.40.20629
sorry i missed your reply, yes i downloaded those drivers, but i still have audio issues some where, 'the volume level shooting up and down as i talk' and only hitting 2/10 green blips when i talk in the systems sounds application recording tab, where you check if your mic settings and output on your desktop etc ,
You have an ASUS ROG SS1 motherboard, so :
You need Realtek High Definition Audio Drivers (HDA - ASUS ROG SSx) from the first post of this thread : [DRIVERS] Realtek Audio (Intel 6x/7x/8x/9x/1xx & AMD Legacy 6xx/7xx/8xx/9xx).
Follow scrupulously your CLEANUP process then your INSTALL process, for the next drivers packages that I would release, you will can directly follow your UPDATE process.