|Tell us the make and model of your brand name system, or if you have a generic desktop system, the make and model of the motherboard. |
Do you have speakers connected to the computer ?
If yes, is the sound working on the speakers ?
Have you (or has Windows automatically) installed the software ("drivers") for the sound adapter in Windows ?
Does Device Manager show the sound adapter is working properly ?
Do you have more than one sound adapter ?
What amplifier ?
It's normal to connect amplified computer speakers to your sound port, or ports.
Is that what you mean ?
The amplifier is in at least one of the the speaker enclosures.
A single pair of speakers to one port, usually the plastic at that port is green,
or if you have more than a pair, to two or more ports, the green port, and (an) other port(s) - you must plug into the correct ports.
If you're plugging in more than a pair of speakers, there must be one or more ports for the other speakers.
The port for a microphone usually has pink plastic at the port.
You never use that port for any speaker.
When you plug in headphones,are you seeing a window pop up that asks you what you're plugging in ?
If yes, answer the question !
READ the Owner's or User's manual for the brand name computer, or for the motherboard if you have a generic desktop computer !