are they USB2 or USB3 on the front?
either way, take off the side cover and make sure the USB2 port cable goes into USB4_5 or USB6_7 on the motherboard. (the one cable does 2 ports)
if the case has USB3 ports, your motherboard does not have a USB3 header to connect into, that may explain why the front USBs aren't working.
either way, take off the side cover and make sure the USB2 port cable goes into USB4_5 or USB6_7 on the motherboard. (the one cable does 2 ports)
if the case has USB3 ports, your motherboard does not have a USB3 header to connect into, that may explain why the front USBs aren't working.