S1200BTL not able to POST with NVMe attached

Hi all,

I am trying to install an NVMe (samsung 950 pro) device into a S1200BTL motherboard with a Xeon E3 processor. The system posts fine without the device but if I attach it, the system will fail to POST. I have updated to the latest firmware but still no luck. I tried installing this in another sandy bridge based system and it works without a problem.

Any suggestions?

Thanks!

Chris