I have crucial ddr4 2133mhz ram and it will run just fine when I put in my gskill 2400 ram it wont post I tryed 4 sticks just 1 2 3 the crucial and the gskill mixed it wont post with gskill ram what is the problem here I used the gskill ram a mouth ago then it stoped working so I rmaed and they sent me a brand new kit