I bought the Z-5300e's from the hot deals forum from Newegg. They came today and upon packing it found a problem. It has 3 inputs for the computer which are green, black and orange. Here's the problem, my computer only has a green input. It onboard sound, not a sound card. I never put in a sound card because my mobo is Micro ATX and after I installed the 8800GTS there was only 1 PCI slot left. It's still empty because if I put something there the Vid Card will not have room to cool. Should I put a Snd card in anyway......What to do