I am having the same issue as well.
Has anyone solved the issue.
intel i7 4930K
All power connectors are connected
I removed my heat sink and am just using a case fan in the CPU fan slot
RAM is supported
I tried the bios update to 4502 (I used FAT32 and the update light blinked for 3 minutes) I believe that was done correctly.
My board revision was 4005, so I shouldn't need the .ROM -.CAP converter utility.
I power up, and the CPU error led stays lit, while the fans spin. No post.