I just build my pc and when i pluged my headphones in they dont work at the back and at the front we check bios and everything is ok but still no sound on headphones do you know what is a problem

I suppose its time to start thinking of a name for the next PC, ready for a few years' time- maybe call the next one E-Tank or something

second keyboard- so that you can type in qwerty with one hand and dvorak with the other

Should have christened it with a wine bottle like they do when they build a new ship.