New NUC5i3MYBE No Boot, shutdown after 5 beeps

Hello

Received new NUC5i3MYBE board, unpacked, installed with Crucial 4GB (CT51264BF160B.C16FER2) in upper slot. Power supply from XP Power, 19V 3.42A.

Event sequence:

1. Power is applied to board.

2. White Power LED and Green Standby Power LED turns on.

3. 5 beeps from connected speaker, 1 sec between beeps. No LED signaling. No video signal.

4. White Power LED turns off

Thanks for any help.