NanoKVM Pcie First boot issue

Hi,

I have 3 Nanokvm pcie. They are just arrived, In box there is a paper, here should I ask technical question.

All 3 behaves same:
on power-on the status led ligths on for about 1 sec, goes down and up for a short blink. No other sign of life.

Through usb connected to pc ( out of host) - I can access to boot directory as external disk. but there is no anything other - eg display if off, lan connection is off.

For me it looks like the boot process is broken. Image : 1.4.0 as factory .- I gave a try for 1.3.0 also. same behavior.

Anybody had seen this? How to debug? How to bring it to live?

Thanks
gyokiss