EAX: Uru:CC and MOUL

Something I'm trying to figure out here. I never paid attention to the EAX settings when I first started playing Uru. I remember when I first started playing MOUL on GT, I enabled the EAX settings, and suddenly I was getting echos in the cavern where one would think you'd have them (yes, Cyan's Plugin has the EAX settings, and I even have them figured out, but can't test them).
However, I remember later I upgraded my motherboard, which of course is my sound chip. I can't remember what I had before, except that it was AC97. My current motherboard uses IDT HD audio (which is no longer supported or updated
).
Now, I noticed with Uru:CC, I can't enable the EAX. However.....with MOUL:a, I do have EAX just fine (and yah, I have EAX with games like Bioshock, Bioshock2, etc, etc) and it works just fine.
I can't remember if the EAX ever worked in Uru:CC,.....heheheheh, as I wasn't really paying attention.
Can anyone tell me if it works fine? Or is it not enabled? And if not, why in the world would they have that option even listed?
However, I remember later I upgraded my motherboard, which of course is my sound chip. I can't remember what I had before, except that it was AC97. My current motherboard uses IDT HD audio (which is no longer supported or updated

Now, I noticed with Uru:CC, I can't enable the EAX. However.....with MOUL:a, I do have EAX just fine (and yah, I have EAX with games like Bioshock, Bioshock2, etc, etc) and it works just fine.
I can't remember if the EAX ever worked in Uru:CC,.....heheheheh, as I wasn't really paying attention.
Can anyone tell me if it works fine? Or is it not enabled? And if not, why in the world would they have that option even listed?