I am sorry but I am afraid that the support is in English only. Please post your query in English so I can help you.
Sorry, thought also pits in Italian. However I have a problem on a mainboard DQ35OJ in which I don't succeed in accessing the Bios because the keyboard Usb doesn't Work and Ps2 has not even handed. I have tried to enter using the Jumper of configuration but the keyboard it doesn't work. Is there some particular procedure or must I change mainboard?
I am sorry to hear you are having problems accessing the bios but let me help you on this.
This specific board model does not have a Back-To-Bios Button that allows users to just press the button and will boot into the bios; however, if the USBs are not working properly (mouse & keyboard) and the PS2 connection isn’t too, you can try changing the bios jumper to position 2-3 so that next time it boots up will go directly to the Bios.
You can check the instructions in the Technical Product Specification page 53 at the following link: