I'm experiencing a slight inconvenience with the system. I have a MSI Z170 Gaming M5 motherboard with 7 GTX 1070 GPUs connected to it. Configured the motherboard as per the instructions and wrote nvOC onto an SSD drive. The system works great when I have only one GPU connected to the motherboard (boots, GUI loads, and it starts mining).

But, once I connect all 7 GPUs, it takes much longer to load and I only get a blank screen. The monitor is connected to the first GPU. The system starts mining after a while but my display remains blank.

Any ideas?