New Build Won't Boot (with more than one RAM)

[decmatt]

Hi

I have done a new build with

Gigabyte Z370 Zorus Gaming 7
8700K
16Gb (2 x 8Gb) G-Skill Trident Z 3600 RAM

And the PC won't boot (won't even get to BIOS) and continually restarts if 1 stick of RAM is in one these slots. The RAM works fine in the other two slots, the issue is it won't let me dual channel using the slots that work. The last error code the motherboard shows is C1, but in the manual it just says reserved error code.

Any ideas or help?

Edit- Also I returned the RAM and happens with the new set too

Thanks in advance

 

[decmatt]

No bent pins that I can see

It is a Corsair H110i, tried to loosen a bit and the same happened... Assume its an RMA?