OK, here's an idea. You said above, "I did disable it in the bios but nothing happened", which makes me think you had NOT disabled the mobo sound system BEFORE installing the card. I am not sure, but the instructions for that card here
http://www.dmmdownload.com/downloads/CURRENT/SOUND/QSG_51_71_71DDL sound_ cards.pdf
on p.4 specifically say there is a required sequence. You must Disable the on-board card before installing, then reboot after that to force Windows to recognize it does not have an audio system. THEN you shut down and install your new sound card and follow the precise instructions to prevent Windows from finding its own device driver, and forcing Windows to use the driver install process on the CD that came with the card.
So, follow my list of steps above, but change Step 1 to making sure that you have Disabled the on-board system in BIOS Setup and then used the SAVE and EXIT step to get out of there and reboot. In place of my Steps 5 and 6, follow the instructions from the card's manual on p.4, lower half of the page, Steps 1 through 8. When that is done, check in Device Manager that the card and its drive do appear now. In my Step 7, you may well find that the Windows settings are already correct, since you stated with no sound hardware and then ran the proper Install process for the added card.
Note that, in the card's manual, p. 5 and 6 outline optional software tools included on the CD that you may choose to install and use, but that is your choice. p. 7 shows you the card's configuration app that should be installed at the same time as the driver, and should appear in your system tray as an icon.