NF4 Sli DR Karajan SPdif & Creative Digital 5500 in Processors, Motherboards and Memory Posted October 20, 2006 · Report reply There is no hardware decoding on SPDIF and is stereo out only unless it is decoded by software before output over cable... RGone...:confused: Really? I thought the output would allow connection to a 5.1 decoder? And that SPdiff output was encoded? Well you live and learn.. So basically I have a surround sound system as long as I use the standard jack outputs? (Which I might add, suffered from a hell of a lot of interfence) Looks like I might have to invest in a better sound card? Paul.