Sooooo I bought new 3 HYPERX Fury ddr4 2400 Mhz 4GB sticks and since I have another 4 Gb same stick with the same specs I thought it would've been easy to just add in to make it quad channel. Apparently not.
Old ram boot:
Single channel: power on and runs through normally.
New ram boot on single and dual channel: powers on -> LED EZ debug switch lights on and flashes CPU and DRAM.
Specs:
MSI B250 Mortar
I5-7400
GTX 1070 Mini
Gigabyte PSU - 1200W
NVME - 500 GB
Old ram boot:
Single channel: power on and runs through normally.
New ram boot on single and dual channel: powers on -> LED EZ debug switch lights on and flashes CPU and DRAM.
Specs:
MSI B250 Mortar
I5-7400
GTX 1070 Mini
Gigabyte PSU - 1200W
NVME - 500 GB