Can't boot with dual monitor setup on GTX970

[SOLVED] Can't boot with dual monitor setup on GTX970

Hi All,

I have the following components running Yosemite 10.10.1

Asrock Z97 Anniversary
16GB RAM
Xeon E3 1231 (so no HD Intel integrated graphics)
SSD Samsung EVO 256GB
Gigabyte GTX970 4GB
2 x Dell 2407 connected with DVI (DVI for both)
Setup is running latest NVIDIA Drivers for 10.10.1 + CUDA drivers


Scenario A - NVIDIA drivers not used (moved outside the S/L/E folder for troubleshooting)

Booting with 2...

Can't boot with dual monitor setup on GTX970