z790 ud rev1

Forum discussion tagged with z790 ud rev1.
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    Question Ram Only Working on Fourth Slot!

    Hi! I am helping my friend to build a new PC but something weird is happening. Whenever I put the RAM on the first, second or third slot, it doesn't POST and the amber lights for CPU and DRAM come on and only the fans spin. This shouldn't be happening, right? The motherboard is gigabyte z790 UD...