I use two Asus Xonar DG cards here which are basically the same card as the DGX but PCI flavour.
My network consists of 3 machines, Gaming/Work; Media Centre and Video/Audio editing/Games/Linux. I have the Asus cards installed on the media and editing machines.
Media machine spec:
Gigabyte GA-B75M-D3P Socket 1155 Motherboard
Intel Core i3 2120 3.3Ghz Sandybridge Socket 1155 CPU
Arctic Cooling Alpine II Rev 2 CPU Cooler
Corsair 8Gb (2 x 4Gb) DDR3 1600Mhz Memory Kit CL9 1.65V
EVGA Nvidia GTX 560 1Gb Memory video card
Win 7 Ultimate 64 Bit
Editing/gaming machine spec:
Asus M5A99X EVO Motherboard
AMD FX-4 4100 Black Edition 4 Core Socket AM3+ CPU 3.6Ghz
Corsair 8Gb (2 x 4Gb) DDR31600MhzXMS3 Memory CL9 1.65V
Noctua NH-U12F CPU Cooler with 2 x 120mm Noctua fans
MSI 660 2Gb Graphics Card
Win 7 Ultimate 64 Bit
I use the optical outputs on both cards and each optical output is taken to a DAC and then to a stereo Hi Fi setup. I'm not a fan of 5.1 or 7.1. Both DACS are mostly home made, using these:
Ebay DAC & TX
The sound on both setups, in my opinion, is very good indeed, beats each board's onboard sound hands down. On the media machine I play FLAC files a lot and visitors here have commented on how good it sounds. On playing BluRay or DVD disks or mkv/avi/mp4 files the result is also very good.
Reading the article I recalled I had exactly the same problem with the card not being recognised on the media machine (i3 based setup) during setup. I can't remember how I solved the problem but I seem to think it was with either the latest drivers, or maybe it was first trying latest drivers then switching to the drivers on the supplied CD but I honestly can't remember. But it works ok.
I don't remember having to refresh the card's EEPROM, that sounds a bit finicketty to me, lol
On the AMD based system the card installed without a hitch, no probs. Linux Mint 16 Cinnamon on this machine recognised the card ok as well but I did have to manually change the output to digital as it defaulted to analog out.
I like the Asus software Module, but I have all settings on flat, no enhancements or EQ used.
And just out of interest I'll mention that on my main i7 system I use an old Auzentech X-Fi based card, no DAC used here, just analog out into a Corsair 2.1 loudspeaker system. I'm happy with that as well.
Good article Naylor