help to start Intel NUC

I have a technical problem with the hardware: I bought an Intel NUC DN 2830FYKH This product out on the market with the formula and without OS Free Hard Disk I at a 60Gb SSD and I inserted (product perfectly compatible) then I acistato a bug memory 4 gb also this perfectly compatible. I closed all started the mini PC to try to install the operating system, and I realized that even if the fan is operating normally and that the motherboard is powered continuously is not recognized any device, including keyboard and mouse, and not given the opportunity to enter the BIOS. Is not even hooked the cable network It 'the first time you purchase a hardware no DOS. Is there any procedure to do that I do not know?