Crosshair formula-z only boots with MemOK! need help

[percy2k03]

The BUILD
Crosshair v formula-z
AMD FX 9590
G-Skill-Trident X*
AMD Friepro s10000 x1 (though a second will be added)
Corsair HX 1000w modular PSU

I have just build this rig and I am having trouble setting it up to boot, while it has posted using the Go button on the board, and windows 8.1 has been installed every time it restarts it ends up back at 0d error and the Dram light on the motherboard comes on. i have tried using the XMP to set the ram up and yet still nothing. I'm sure this is something really simple and user error more than hardware failure, The Bios has been flashed to the latest version, so if anyone could help me with setting up this board as I am now at a loss. *

[percy2k03]

Well basically new board arrived plugged everything in and wemmm it just works, it's also an asus board the maximus VII so oh well least it's working now lol.*

[theliexon]

Do you use RAM of different kinds or purchased separately? For GSKILL, if modules are made in different years, they won't allow you to boot up without MemOK's help. Use CPU-Z. Mine shows my newly purchased modules (of the same exact type memory model) are made from Samsung whereas older modules are from Micron. Don't be fooled by label or product name. They can be different than other batch.