AA - ACPI APIC initialization (According to ASUS this is a normal status)
I forgot that the ASUS P8Z68/GEN3 Deluxe doesn't have a video port on its rear panel connectors so that motherboard doesn't even allow the use of the IGP for troubleshooting purposes. One of the reasons I didn't buy that motherboard when I built my last system.
The only other thing I can suggest is to borrow and try a different graphics card.
You can also try the EVGA GeForce GTX570 in another system to determine if it does or doesn't function properly.