Speakers making loud click noise from rear port, ok at front port

marq

Logitech speakers started making loud clicking noise throug sub wolfer, confirmed speakers are ok on other machine.  Tried speakers on front headphone jack and seemed ok.  Possible bad sound board?  Believe sound board is part of mother board? 

IronFly

soundcard is integrated on motherboard.

if front panel is ok, probably there's something wrong on the rear port, maybe a little short or interference.

 

you can only check if any cable inside your PC case is loose and creating interference, if not, probably is an hardware issue on the rear jack plug.