@pwertz
I have tried with HDMI and also with DVI. Thee is no difference. I always get the message "No boot device".
@spearson
There are no beeps coming from the board. I have already tried several times (20+) to press the power button for three seconds. I always get the message "No boot device". Or the board is powering down if I push 4 seconds.
The AA number is G74240-403.