Before you need drivers for anything weather its Audio, Video, Monitors, Mouse, etc... You first need to identify what product you own.
It is very useful to know the model / serial number in this particular case. These numbers are always placed on the hardware component itself.
(Inside your computer)
Once you have the model number, you can find out the name of your product, manufacturer and further support details.
First, we may be able to avoid disassembling the PC by checking to see if Windows can tell us this information for us.