My RouterBoard 450g dont beeb signal during boot.
Serial cable connection does not effect, dial no connect.
Reset dont work. I Press reset button during boot, but LEDs blink only one in first second. It dont have result.
Reset hole too.
I reset in acceord this manual http://wiki.mikrotik.com/wiki/Manual:Password_reset
Serial connetction parameters - - COM1 - 115200 bits/s - 8 data - 1 stop - no parity.
Previous connection with this parameters was successfull.
What me do? How repair router?