The HD Audio / AC 97 is asking you what type of front panel audio connections you have made to your sound card - this is usually whatever is fitted to your case or you may have a third party front audio panel fitted. None of the information you have supplied identifies this - you can only identify front panel audio connection by looking at it or finding it's documentation. If you do not have any front panel audio connected then it does not matter which you select.
If you have a front panel audio connection but do not know which type then you could:-
Identify the type of connections & select the appropriate one during reinstallation (this may also be selectable after installation somewhere in the driver options). Googling "front panel audio connector types" should provide you with enough information to identify the type (I found some nice diagrams but they were on another forum so I thought it better not to post a link)
Just don't use the front panel audio - in which case having the wrong connection type selected will probably not affect anything
Just disconnect the front panel audio.
If you have a sound problem only when using Chrome then, as I suspect you won't have much success asking google about it, my suggestions would be:-
stop using Chrome
(I have a similar irritating audio problem when using ie11 on my Xonar D2X, but I have no idea whether that also would affect my on board audio if I removed the D2X)
Edited by rqt, 06 March 2016 - 03:39 AM.