My current PC is connected to my amp by means of an optical cable out on back of PC, I wish to upgrade my PC to the Dell Inspiron and wish to know the best way to connect both to get 5.1 sound, I have listed all ports/outpts on the new PC below Ports & Slots: 1. Power on button | 2. 5-in-1 Multi-Card Reader | 3. Audio combo jack | 4. (2) USB 3.0 ports | 5. Tray Load Optical drive | 6. Air vent | 7. Line in/out and microphone port | 8. VGA port | 9. HDMI port | 10. (4) USB 2.0 ports | 11. Expansion card slots | 12. Power supply unit | 13. Security-cable slot | 14. Network port | 15. Padlock rings , this is probably a very easy question but I'm the 1st to admit that I am not technically adept ! Thanks in advance, Frannie M.