Thank you for your reply!
I do have the cable.
I should probably add that the port that might have caused problems on my PC operates fine, my mice is plugged in to the same port and operates as usual. MSEL configuration is set factory default and always have been.
I also attached another photo, showing exactly which part of the board gets hot.
Terasic people told me all they could do was send me replacement HEX LEDs ..? I doubt that would be of any use.
I'm not that proficient at operating the board. All that I've used it for is to run some Verilog code and later in the semester, use it as a machine to run assembley code.