The CPU and motherboard support onboard graphics so you can test it without the GPU 970.
Try that and just one stick of RAM. The goal is to see if less works.
During a move, my computer was moved by someone other than myself. Once I tried to turn it on, the first time, it displayed an error. I forgot to write down specifically what it said but it was saying that it did not know where to boot from. I turned it off and turned it back on and then there was no signal on my monitors. On my motherboard there is a "EZ Debug LED" There is a led on next to the DRAM and then a quick blink next to CPU. I have reseeded my ram, and at this moment I cant try out any other ram.
My specs are
MSI Z170 PC Mate
Intel® CoreT i5 6500
3.2GHz/3.6GHz Turbo QUAD Core CPU 6MB L3 Cache
8GB HyperX® FURYT DDR4- 2666 (2x4GB) [Dual Channel]
NVIDIA GeForce GTX 970 4GB with G-Sync

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