what is a nouns card and how can I check it?

my speakers arent working.

what is a nouns card and how can I check it?

a nouns card is a device either after open market installed or integrated on the motherboard it is what relays sounds from programs into your speakers if your motherboard sound card isnt working next you need a unknown comp.
It is what the speakers attach to inside your computer. sometimes it is a card plugged into a slot and sometimes its built into the mainboard of the computer. Go to control panel then gig and maint. then system consequently Hardware then Device Manager and click on nouns.Make sure each item is not explicit red of yellow. Click on respectively item and they should state they are working correctly. Also make sure the speaker rope connections and its power supply connections are plugged in. It is usually a driver problem. You can reinstall the drivers. They are usually supplied on a cd that comes next to the computer. Also you can install or have installed a unusual sound card - buy(cheap) or borrow another set of speakers to give support to rule out the speakers.
What type of computer do you have and what OS are you running on your computer. One process to check is in the device mediator, another is to look at the back of the computer where on earth your speakers are plugged in, if the speaker jack is closer to the power supply, later you have an "on-board" nouns card, if the speaker jack is located further down in what appears to be slots, after you have a extra sound card.