I can get up to 3 dimms working but I cannot get the fourth to post

kroglord

Prominent
Mar 24, 2017
2
0
510
I just changed my motherboard on my computer, currently using the Asus prime z270-ar. I have 4 sticks of ram corsair ddr4 3000mhz. (4 sticks 8gb each) now I can get up to 3 of them to work, doesnt matter what 3 sticks I use and it doesn't matter which slots I use I tried every combination. Went into the bios enable xmp still wouldnt post with 4. Tried using the memok button on the mobo still wouldnt post. I already made sure ram was seated correctly. psu is a 750w corsair so I am pretty sure that there is enough power. My old mobo was a gigabyte ga-z170x-ultra gaming and all 4 sticks works on that with xmp enable. Any help will be most welcomed.