Hello Everyone,
So I found the solution after many hours of testing.
#1 780GTX will not boot in EFI comparability mode on the p8p67, there is something incompatible with the board and the BIOS. So you have to use Legacy Mode, (which can still boot a UEFI HDD)
#2 The reason it would not post, is if there is something in the 4th B2 dimm slot while the Intel P3700 NVME drive is in PCIE slot 2 (black) the machine will not post. By removing the ram it will post, or by installing the ram and removing the PCI-E board it will post and work. Very strange some compatibility issue here.
#3 You will need to set the bios to use 4x mode in the PCI-E slot and disable USB 3.0 front header to gain the speed needed to run the NVME drive (which will still be crippled in speed due to the PCI-E 2.0 4x only.
#4 You will have to hack the UEFI modules to allow to boot from NVME. In my case I had to remove the TPM UEFI driver so I had enough space to add the NVME boot drivers. You can find more info at www.win-raid.com and see my posts there, also my modified ROM.
#5 you cannot have any ram in the 4th Dimm slot. I don't know why but my MSI z77 motherboard is the same except you can't have ram in the 2,3,4th slot So strange.