How to hook up a 5.1 surround sound to a desktop computer

Airman1993

Honorable
Jan 13, 2014
5
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10,510
I have seen people using a 3.5 to a rca splitter but using three of them to get 5.1 surround sound, but on my surround sound receiver I only have one set of red and white plug in's. So how would I go about plugging this into my computer to get the full 5.1 surround sound