X79S-UP5-WiFi Dolby Digital Live optical output

[delphium]

Installed a new X79S-UP5-WiFi board using the F4 BIOS, it uses the Realtek ALC 898 audio chipset, with drivers and Realtek audio manager installed and loaded, I am unable to get Dolby Digital Live to work as I had previously managed to do so on the older Realtek ALC 889 chipset that was used on my x58 board.

I have a set of 5.1 digital speakers that I connect to my PC via an optical cable, in order for 5.1 to work Dobly digital Live is required for games, sadly without this audio is only in 2 channel stereo.

Am I missing something here, surely a newer chipset would support the features of the old, and possibly more?

EDIT:- I am using the R3.75 drivers from...
http://www.gigabyte.com/products/product-page.aspx?pid=4287#dl
ftp://download.gigabyte.ru/driver/mb_driver_audio_realtek_azalia_x79_170.zip
/EDIT


Many thanks in advance for any information provided.

Cheers,
Delphium

[dmdilks]

I don't know if this will help

http://forum.giga-byte.co.uk/index.php/topic,11799.0.html

[delphium]

Answer from Gigabyte support:-

"Dear Sir,

X79S-UP5-wifi doesn’t support Dolby and DTS."

This is somewhat disappointing considering the ALC898 is a newer chipset than the ALC889 I previously used.

According to the GA-X79-UD5 specs, it also uses the ALC898 chipset which does support Dolby, so this can hardly be a hardware limitation as Gigabyte support suggests.

In my searching however I can see there are attempts to work around this with modded drivers "Realtek/Soundmax Modds + SB X-fi MB"
If I get it working I will post my results.

[delphium]

Well, some kind folks over at TechPowerUp were able to provide a working set of unlocked Realtek drivers for this, all installed and working with both DTS Interactive and Dobly Digital Live (DDL) working and being detected by my amp with all 6 discrete channels working over optical.