Upgraded motherboard and cpu, monitor not getting signal

Sep 5, 2018
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[Moderator note: moved post to Memory.]

I upgraded from a i5 7600k to an i7 8700k. And I upgraded to an Asus prime z370-a motherboard. I kept the same ram which is Patriot Viper 2133 2x8gb. As soon as I upgraded everything I only had one stick of ram seated and it started up fine. I then realized it said I only had 8gb of ram so I checked and the other wasn’t seated. When I seated it it said my monitor did not have a signal. I have tried every combination of ram I could in different slots. Both sticks of ram work in one slot. But neither works in any other slot.
 

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