krivulak wrote:

No, I don't need two LPT port, at the end I have only one physical port on case, but it cannot be disabled in BIOS.

I did a quick google search based on your board and found this - http://www.elhvb.com/mobokive/Archive/Octek/4 … 20OP/index.html

It looks like perhaps you can disable it via JP23 based on the documentation. Hope that helps!