Hello - I just finished building a new mid-tower with this motherboard.

Asus P8Z77-V DELUXE
Intel Core i7- i7-3770K
Corsair Vengeance Blue 8GB (2x4GB) DDR3 PC3-12800C9 1600MHz Dual Channel
Zalman CNPS10X Extreme CPU
GF680GTX2GEPB - 2GB PNY GTX 680
Corsair CMPSU-650HX 650W Power Supply
Seagate Barracuda 2TB ST2000DM001
Samsung SH-B123L/BSBP 12x Optical Drive

I have plugged the monitor (old iiyama with a DVI-A Signal Cable) into the graphics card adaptor but got no signal. I have plugged a (working) HDMI cable to the onboard graphics card and my TV. I got no signal either.

Every time I reboot the system I get the "Boot Device LED" LED showing and a "A0" Q Code corresponding to "IDE Initialisation is started". I have tested the "MemOK!" switch which also returns "A0".

I greatly appreciate any help/advice in trying to sort this problem out.