No not necessarily....well maybe. If you do not already have the Sigmatel High Definition CODEC in your sound device menu. You can go here and download the driver. That's if you have an integrated Intel Desktop Board with Sigmatel in your PC. The CODEC allows you to choose from 8 different sampling rates 16 and 24 bit from 44.1kHz , 48 kHz, 96 kHz up to 192 kHz.
Does your PC have a coax or optical output built in?
Does your PC have a coax or optical output built in?