It seems that the DC5800 is using the Analog Devices - AD1884JCPZ intrgrated circut. My research indicated that the chip puts out S/PDIF. I do not see any option with my current audio driver to use S/PDIF in the sound output dialogue. Is there a way to use S/PDIF on this machine? I have a nice DAC I would love to use.
There are several ways to achieve spdif output from your dc5800.
1. Use a hdmi > spdif connector, if you have a dedicated videocard ( like the AMD HD 6450 I have installed) and use the audio output from this card. Hdmi audio should be activated in 'audio devices' and you may have to check bios settings as well.
2. Buy a cheap low profiles soundcard from Asus (Sonar series) or Creative (X-fi) that support spdif output.
3. You could buy or diy a spdif output bracket and connect the header with a cable, like these: