Latest Realtek HD Audio Driver Version [3]

Only the OEM installer can install the extension inf. Therefore OEM driver must be install first and must use the installer to install it.

MUC can then be updated (via device manager) on top of oem driver.

sandyt said:

Gigabyte seemed to pull the 9313 driver without providing any reason (so that oem driver may have problems). Mouse over to Dru2's download link and you see the download link to say z690 ud ddr4.

it was actually 6.0.9373.1 that got pulled by Gigabyte, not 6.0.9313.1 as that one is still available from these links from Gigabyte {download 1} {download 2}
mainly because the 6.0.9652.1 version supersedes/replaces the 6.0.9373.1 & 6.0.9313.1 versions for recent Gigabyte boards (B650/Z690/Z790/B760/H610) made in the past few years.

and the newest "all oem" audio driver from MUC is now 6.0.9676.1 {the 12.3Mb cab download}