coffee break 30 (memory error)

I had a plan to assemble a new PC with a repaired motherboard.
I purchased new cpu and memories, and use other old parts.

The assembly was easy, but the bios doesn't start up when the power is turned on.

Testing any cases, I found out that one 8gb memory kit was bad,
so I sent the memory set to the shop.

Actually, the shop also found the error of the memory. and returned a replacement.

However, the same symptom occures again. why???

memories:G.Skill F4-3600C19D-8G*2