I did a lot of research last night and I can't seem to find a situation just like mine. I just received my z170x gaming 7, Intel i7 6700k, and g.skill ripjaws V 3400 ddr4. Assemble everything properly (built dozens of computers in the past, no worries, doesn't mean I DIDN'T break something, but I'm fairly confident I didn't.) and it won't post. Error code 55 - no RAM. Took out the RAM, same problem (of course) switched around DIMMs, the whole 9, no changes. Now from what I've read it's because the stock BIOS won't run OC'd RAM. So what I'm *thinking* is that I can run down to the local PC store and get 4gb of 2133 ddr4 and boot off of that, update the BIOS, reboot, change CMOS to throttle the RAM to 2133, and run my ripjaws at 2133. Does that seem like it'll work? I haven't checked the CPU for bent pins yet, that's gonna be the following step if it doesn't work.