I listen to the radio on my office computer (at weekends!!!). It is a Dell with speakers built in. The volume is very low. I have gone into the Master Volume box and every control is set to maximum and all the 'balances' are in the middle. Is there anything else I can do to try to increase the volume?
Most laptops also have a manual way of changing the volume, my Toshiba has a little rotary control near the jacks on the front. My daughter's HP has + and - signs with an illuminated bar at the top of the keyboard. If you can't find a manual control, take a look at the Dell manual for your model, if you don't have a hard copy you should fing it on the Dell website.