Logitech x530s Speaker Issues

Hey guys,

I'm having a bit of trouble with a set of Logitech X530 speakers I purchased from Walmart for college. I have integrated sound on my Gigabyte motherboard Ma79x ud4 and the sound works well for the most part. The motherboard came with realteck integrated audio and the program works well, and when I run the test sequence for my 5.1 they all work, yet in games, movies or music any one of the speakers will quit. I can change the cables for each speaker, and one will turn on, and another turn off. No individual speaker has a problem, yet I cannot get them all to work at once. My motherboard has 6 slots for the plugins, yet I'm not sure if I need a new sound card or simply need to use the converter that came with the speakers to take the 3 plugs into two or one. Thanks for all your help guys.