What CPUs are you using to test the board?
Are you doing a clear cmos in between swapping the CPUs?
Both cpu's are I9 7900x. (with a third one arrived hopefully next week)
Yes i have done clear cmos between swapping cpu's and testing varios settings / memory configs / adding card configs.
I have also move the gpu between all four 16x slots
What is the Make and Model/Part Number of your NVMe U.2 Drives?
2 Intel SSD DC P4500 series 2TB model number SSDPE2KX020T7 2.5" NVME/PCIE SSD 2.0T
What is the Make and Model/Part Number of your NVMe U.2 PCIe Controller?
I don't know what you mean whit this?
Nvme drives are directly attached to the pcie bus, the only time you have anything inbetween is when you use either a PLX addin card or retimer card to add drives to a system that doesn't have enough pcie lanes or pcie bifurcation support.
The raid controller i mentioned is a areca arc 1882-8i but this is used for SAS and Sata drives and i only attached this to verify the U.2. ports were working at all.
What is the Make and Model/Part Number of your Memory?
2 sets of Gskill F4-3200C 14D-16FGX
To Post to Bios on the X299 Dark you must have a CPU 1 Memory Stick and A Graphics Card.
With the above can you Post to your Bios to clear and set it up?
If i have a U.2. drive plugged in to the U.2 ports a definte no.
No U.2. then yes after a cmos but after then setting either the memory to xmp or enabling the U.2. slots i have a 50/50 change of getting boot error code B2
and after a power cycle i get 100% of the time B2
The memory stick was put slot 1 = B2 every time (cmos en reseat didn't help) slot worked but with the symptoms above.
I have also tried 2 bios version's
1.0x (pre the 1.09 as it still has the old interface but can't remember the version number)
post edited by xeon_1 - 2019/03/03 03:27:32