Sound problem

[djmartylyttle]

I added a 2 port usb pci card to my pc today and in doing so moved the soundcard up one pci slot. The sound card is a soundblaster x-fi extreme music.
Now when I play music I get crackling out of the right speaker and the sound out of the left isn't 100%.
I have my soundcard connected to my hifi via jack to phono cable and have done for years. I have tried different jack to phono cables (same result) and tried other sources into my hifi to rule it out (other sources were fine). When I plug my headphones into the same line out jack on the soundcard the sound is 100% in both ears. I can't understand it at all.
Could my soundcard be buggered? if so then how is the sound in the headphones direct from the card 100%?
Any help would be great!

 

[djmartylyttle]

it's now back in its original pci slot at the bottom where it worked fine for ages. By spec any pci slot can be used for any standard pci card. what i cant understand is how it outputs crap to the hifi via jack to phono leads but the sound to the headphones from the same line out socket is 100%. I have a dual boot, xp & vista, same problem on both. I'm starting to think its the card

 

[djmartylyttle]

I tend to agree with you mate. Because the hifi works fine with other sources into it. I was thinking something like that, maybe a seperate amp on the card for headphones. But how would it know whats connected to it, they are just 2 jack plugs exactly the same. I'm gonna order a new card exactly the same and if the problem is still there then i'll sell one of them. Raging!
If anyone else has any other ideas please post!