We have to try a simple CMOS reset first (remove battery is one way, look in the motherboard manual for the other way. Then reduce the machine to less parts.
BUT I've had good luck with CPU seating issues so after the basics are checked (CMOS, see if the motherboard does not have extra mounting studs and we try without GPU and much else) I'll pull the CPU out and look at the pins and pads to check for issues then put it back together.
Intel Core i5-6600K 3.5GHz Quad-Core Processor
Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz
Asus Z170-P ATX LGA1151 Motherboard
I've had this computer for about two months now, and yesterday I notice that one of my RAM stick were not working properly. I had checked them to be fine when I first constructed the computer.
I went to switch the slots of the ram to see if it was a slot problem, and after I did it it stop displaying anything. I'm sure I touched the case before removing anything, but maybe I still shorted something somehow.
I've already tried a few things to fix the problem, but they have not worked.
1. Placing RAM back in Original slots.
2. Placing 1 RAM card into a slot (both)
3. Using the Motherboards display ports
4. Resetting BIOS? (by removing the CMOS battery for 30-40 seconds)
More details.
All my LEDs light up, so my mouse, headset, etc. Including the ones on the Motherboard itself.

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