Dual Channel can't boot

Cellirelin

Reputable
Nov 27, 2014
16
0
4,520
Hello! I've readen many topics of this problem before I posted this.
You're my last resort.
So, let's go to the problem. I've got two DDR3 RAM from GoodRam company. They're running 1333 mhz on MSi z77-GD65 board(new). Well, they're running only if I place them alone. Every slot and every ram chip is fine. I tested that few hours ago. What can I do to make my PC boot with both of them? I made an BIOS reset, installed newer bios. Nothing helped at all.
Have you any solution for that?
Ask me for everything.
Thanks in advance