Download, install, and run Everest Home Edition on this machine. (Clean FreeWare) Once it's finished loading and running, look under Multimedia, or, under Multimedia, PCI / PnP Audio. This will tell you what sound devices you have available on your system. Post that information.

Also look under MOTHERBOARD.
Post what is listed for your Motherboard (make/model) and the Chipset description.

Ensure any onboard sound devices are ENABLED in the machines bios before running the Everest program.